/* vim: set expandtab sw=4 ts=4 sts=4: */
/**
 * general function, usally for data manipulation pages
 *
 */

/**
 * @var sql_box_locked lock for the sqlbox textarea in the querybox/querywindow
 */
var sql_box_locked = false;

/**
 * @var array holds elements which content should only selected once
 */
var only_once_elements = new Array();

/**
 * @var ajax_message_init   boolean boolean that stores status of
 *      notification for PMA_ajaxShowNotification
 */
var ajax_message_init = false;

/**
 * Add a hidden field to the form to indicate that this will be an
 * Ajax request (only if this hidden field does not exist)
 *
 * @param   object   the form
 */
function PMA_prepareForAjaxRequest($form) {
    if (! $form.find('input:hidden').is('#ajax_request_hidden')) {
        $form.append('<input type="hidden" id="ajax_request_hidden" name="ajax_request" value="true" />');
    }
}

/**
 * Generate a new password and copy it to the password input areas
 *
 * @param   object   the form that holds the password fields
 *
 * @return  boolean  always true
 */
function suggestPassword(passwd_form) {
    // restrict the password to just letters and numbers to avoid problems:
    // "editors and viewers regard the password as multiple words and
    // things like double click no longer work"
    var pwchars = "abcdefhjmnpqrstuvwxyz23456789ABCDEFGHJKLMNPQRSTUVWYXZ";
    var passwordlength = 16;    // do we want that to be dynamic?  no, keep it simple :)
    var passwd = passwd_form.generated_pw;
    passwd.value = '';

    for ( i = 0; i < passwordlength; i++ ) {
        passwd.value += pwchars.charAt( Math.floor( Math.random() * pwchars.length ) )
    }
    passwd_form.text_pma_pw.value = passwd.value;
    passwd_form.text_pma_pw2.value = passwd.value;
    return true;
}

/**
 * Version string to integer conversion.
 */
function parseVersionString (str) {
    if (typeof(str) != 'string') { return false; }
    var add = 0;
    // Parse possible alpha/beta/rc/
    var state = str.split('-');
    if (state.length >= 2) {
        if (state[1].substr(0, 2) == 'rc') {
            add = - 20 - parseInt(state[1].substr(2));
        } else if (state[1].substr(0, 4) == 'beta') {
            add =  - 40 - parseInt(state[1].substr(4));
        } else if (state[1].substr(0, 5) == 'alpha') {
            add =  - 60 - parseInt(state[1].substr(5));
        } else if (state[1].substr(0, 3) == 'dev') {
            /* We don't handle dev, it's git snapshot */
            add = 0;
        }
    }
    // Parse version
    var x = str.split('.');
    // Use 0 for non existing parts
    var maj = parseInt(x[0]) || 0;
    var min = parseInt(x[1]) || 0;
    var pat = parseInt(x[2]) || 0;
    var hotfix = parseInt(x[3]) || 0;
    return  maj * 100000000 + min * 1000000 + pat * 10000 + hotfix * 100 + add;
}

/**
 * Indicates current available version on main page.
 */
function PMA_current_version() {
    var current = parseVersionString(pmaversion);
    var latest = parseVersionString(PMA_latest_version);
    $('#li_pma_version').append(PMA_messages['strLatestAvailable'] + ' ' + PMA_latest_version);
    if (latest > current) {
        var message = $.sprintf(PMA_messages['strNewerVersion'], PMA_latest_version, PMA_latest_date);
        if (Math.floor(latest / 10000) == Math.floor(current / 10000)) {
            /* Security update */
            klass = 'error';
        } else {
            klass = 'notice';
        }
        $('#maincontainer').after('<div class="' + klass + '">' + message + '</div>');
    }
}

/**
 * for libraries/display_change_password.lib.php
 *     libraries/user_password.php
 *
 */

function displayPasswordGenerateButton() {
    $('#tr_element_before_generate_password').parent().append('<tr><td>' + PMA_messages['strGeneratePassword'] + '</td><td><input type="button" id="button_generate_password" value="' + PMA_messages['strGenerate'] + '" onclick="suggestPassword(this.form)" /><input type="text" name="generated_pw" id="generated_pw" /></td></tr>');
    $('#div_element_before_generate_password').parent().append('<div class="item"><label for="button_generate_password">' + PMA_messages['strGeneratePassword'] + ':</label><span class="options"><input type="button" id="button_generate_password" value="' + PMA_messages['strGenerate'] + '" onclick="suggestPassword(this.form)" /></span><input type="text" name="generated_pw" id="generated_pw" /></div>');
}

/*
 * Adds a date/time picker to an element
 *
 * @param   object  $this_element   a jQuery object pointing to the element
 */
function PMA_addDatepicker($this_element) {
    var showTimeOption = false;
    if ($this_element.is('.datetimefield')) {
        showTimeOption = true;
    }

    $this_element
        .datepicker({
        showOn: 'button',
        buttonImage: themeCalendarImage, // defined in js/messages.php
        buttonImageOnly: true,
        duration: '',
        time24h: true,
        stepMinutes: 1,
        stepHours: 1,
        showTime: showTimeOption,
        dateFormat: 'yy-mm-dd', // yy means year with four digits
        altTimeField: '',
        beforeShow: function(input, inst) {
            // Remember that we came from the datepicker; this is used
            // in tbl_change.js by verificationsAfterFieldChange()
            $this_element.data('comes_from', 'datepicker');
        },
        constrainInput: false
     });
}

/**
 * selects the content of a given object, f.e. a textarea
 *
 * @param   object  element     element of which the content will be selected
 * @param   var     lock        variable which holds the lock for this element
 *                              or true, if no lock exists
 * @param   boolean only_once   if true this is only done once
 *                              f.e. only on first focus
 */
function selectContent( element, lock, only_once ) {
    if ( only_once && only_once_elements[element.name] ) {
        return;
    }

    only_once_elements[element.name] = true;

    if ( lock  ) {
        return;
    }

    element.select();
}

/**
 * Displays a confirmation box before submitting a "DROP/DELETE/ALTER" query.
 * This function is called while clicking links
 *
 * @param   object   the link
 * @param   object   the sql query to submit
 *
 * @return  boolean  whether to run the query or not
 */
function confirmLink(theLink, theSqlQuery)
{
    // Confirmation is not required in the configuration file
    // or browser is Opera (crappy js implementation)
    if (PMA_messages['strDoYouReally'] == '' || typeof(window.opera) != 'undefined') {
        return true;
    }

    var is_confirmed = confirm(PMA_messages['strDoYouReally'] + ' :\n' + theSqlQuery);
    if (is_confirmed) {
        if ( typeof(theLink.href) != 'undefined' ) {
            theLink.href += '&is_js_confirmed=1';
        } else if ( typeof(theLink.form) != 'undefined' ) {
            theLink.form.action += '?is_js_confirmed=1';
        }
    }

    return is_confirmed;
} // end of the 'confirmLink()' function


/**
 * Displays a confirmation box before doing some action
 *
 * @param   object   the message to display
 *
 * @return  boolean  whether to run the query or not
 *
 * @todo used only by libraries/display_tbl.lib.php. figure out how it is used
 *       and replace with a jQuery equivalent
 */
function confirmAction(theMessage)
{
    // TODO: Confirmation is not required in the configuration file
    // or browser is Opera (crappy js implementation)
    if (typeof(window.opera) != 'undefined') {
        return true;
    }

    var is_confirmed = confirm(theMessage);

    return is_confirmed;
} // end of the 'confirmAction()' function


/**
 * Displays an error message if a "DROP DATABASE" statement is submitted
 * while it isn't allowed, else confirms a "DROP/DELETE/ALTER" query before
 * sumitting it if required.
 * This function is called by the 'checkSqlQuery()' js function.
 *
 * @param   object   the form
 * @param   object   the sql query textarea
 *
 * @return  boolean  whether to run the query or not
 *
 * @see     checkSqlQuery()
 */
function confirmQuery(theForm1, sqlQuery1)
{
    // Confirmation is not required in the configuration file
    if (PMA_messages['strDoYouReally'] == '') {
        return true;
    }

    // The replace function (js1.2) isn't supported
    else if (typeof(sqlQuery1.value.replace) == 'undefined') {
        return true;
    }

    // js1.2+ -> validation with regular expressions
    else {
        // "DROP DATABASE" statement isn't allowed
        if (PMA_messages['strNoDropDatabases'] != '') {
            var drop_re = new RegExp('(^|;)\\s*DROP\\s+(IF EXISTS\\s+)?DATABASE\\s', 'i');
            if (drop_re.test(sqlQuery1.value)) {
                alert(PMA_messages['strNoDropDatabases']);
                theForm1.reset();
                sqlQuery1.focus();
                return false;
            } // end if
        } // end if

        // Confirms a "DROP/DELETE/ALTER/TRUNCATE" statement
        //
        // TODO: find a way (if possible) to use the parser-analyser
        // for this kind of verification
        // For now, I just added a ^ to check for the statement at
        // beginning of expression

        var do_confirm_re_0 = new RegExp('^\\s*DROP\\s+(IF EXISTS\\s+)?(TABLE|DATABASE|PROCEDURE)\\s', 'i');
        var do_confirm_re_1 = new RegExp('^\\s*ALTER\\s+TABLE\\s+((`[^`]+`)|([A-Za-z0-9_$]+))\\s+DROP\\s', 'i');
        var do_confirm_re_2 = new RegExp('^\\s*DELETE\\s+FROM\\s', 'i');
        var do_confirm_re_3 = new RegExp('^\\s*TRUNCATE\\s', 'i');

        if (do_confirm_re_0.test(sqlQuery1.value)
            || do_confirm_re_1.test(sqlQuery1.value)
            || do_confirm_re_2.test(sqlQuery1.value)
            || do_confirm_re_3.test(sqlQuery1.value)) {
            var message      = (sqlQuery1.value.length > 100)
                             ? sqlQuery1.value.substr(0, 100) + '\n    ...'
                             : sqlQuery1.value;
            var is_confirmed = confirm(PMA_messages['strDoYouReally'] + ' :\n' + message);
            // statement is confirmed -> update the
            // "is_js_confirmed" form field so the confirm test won't be
            // run on the server side and allows to submit the form
            if (is_confirmed) {
                theForm1.elements['is_js_confirmed'].value = 1;
                return true;
            }
            // statement is rejected -> do not submit the form
            else {
                window.focus();
                sqlQuery1.focus();
                return false;
            } // end if (handle confirm box result)
        } // end if (display confirm box)
    } // end confirmation stuff

    return true;
} // end of the 'confirmQuery()' function


/**
 * Displays a confirmation box before disabling the BLOB repository for a given database.
 * This function is called while clicking links
 *
 * @param   object   the database
 *
 * @return  boolean  whether to disable the repository or not
 */
function confirmDisableRepository(theDB)
{
    // Confirmation is not required in the configuration file
    // or browser is Opera (crappy js implementation)
    if (PMA_messages['strDoYouReally'] == '' || typeof(window.opera) != 'undefined') {
        return true;
    }

    var is_confirmed = confirm(PMA_messages['strBLOBRepositoryDisableStrongWarning'] + '\n' + PMA_messages['strBLOBRepositoryDisableAreYouSure']);

    return is_confirmed;
} // end of the 'confirmDisableBLOBRepository()' function


/**
 * Displays an error message if the user submitted the sql query form with no
 * sql query, else checks for "DROP/DELETE/ALTER" statements
 *
 * @param   object   the form
 *
 * @return  boolean  always false
 *
 * @see     confirmQuery()
 */
function checkSqlQuery(theForm)
{
    var sqlQuery = theForm.elements['sql_query'];
    var isEmpty  = 1;

    // The replace function (js1.2) isn't supported -> basic tests
    if (typeof(sqlQuery.value.replace) == 'undefined') {
        isEmpty      = (sqlQuery.value == '') ? 1 : 0;
        if (isEmpty && typeof(theForm.elements['sql_file']) != 'undefined') {
            isEmpty  = (theForm.elements['sql_file'].value == '') ? 1 : 0;
        }
        if (isEmpty && typeof(theForm.elements['sql_localfile']) != 'undefined') {
            isEmpty  = (theForm.elements['sql_localfile'].value == '') ? 1 : 0;
        }
        if (isEmpty && typeof(theForm.elements['id_bookmark']) != 'undefined') {
            isEmpty  = (theForm.elements['id_bookmark'].value == null || theForm.elements['id_bookmark'].value == '');
        }
    }
    // js1.2+ -> validation with regular expressions
    else {
        var space_re = new RegExp('\\s+');
        if (typeof(theForm.elements['sql_file']) != 'undefined' &&
                theForm.elements['sql_file'].value.replace(space_re, '') != '') {
            return true;
        }
        if (typeof(theForm.elements['sql_localfile']) != 'undefined' &&
                theForm.elements['sql_localfile'].value.replace(space_re, '') != '') {
            return true;
        }
        if (isEmpty && typeof(theForm.elements['id_bookmark']) != 'undefined' &&
                (theForm.elements['id_bookmark'].value != null || theForm.elements['id_bookmark'].value != '') &&
                theForm.elements['id_bookmark'].selectedIndex != 0
                ) {
            return true;
        }
        // Checks for "DROP/DELETE/ALTER" statements
        if (sqlQuery.value.replace(space_re, '') != '') {
            if (confirmQuery(theForm, sqlQuery)) {
                return true;
            } else {
                return false;
            }
        }
        theForm.reset();
        isEmpty = 1;
    }

    if (isEmpty) {
        sqlQuery.select();
        alert(PMA_messages['strFormEmpty']);
        sqlQuery.focus();
        return false;
    }

    return true;
} // end of the 'checkSqlQuery()' function

/**
 * Check if a form's element is empty.
 * An element containing only spaces is also considered empty
 *
 * @param   object   the form
 * @param   string   the name of the form field to put the focus on
 *
 * @return  boolean  whether the form field is empty or not
 */
function emptyCheckTheField(theForm, theFieldName)
{
    var isEmpty  = 1;
    var theField = theForm.elements[theFieldName];
    // Whether the replace function (js1.2) is supported or not
    var isRegExp = (typeof(theField.value.replace) != 'undefined');

    if (!isRegExp) {
        isEmpty      = (theField.value == '') ? 1 : 0;
    } else {
        var space_re = new RegExp('\\s+');
        isEmpty      = (theField.value.replace(space_re, '') == '') ? 1 : 0;
    }

    return isEmpty;
} // end of the 'emptyCheckTheField()' function


/**
 * Check whether a form field is empty or not
 *
 * @param   object   the form
 * @param   string   the name of the form field to put the focus on
 *
 * @return  boolean  whether the form field is empty or not
 */
function emptyFormElements(theForm, theFieldName)
{
    var theField = theForm.elements[theFieldName];
    var isEmpty = emptyCheckTheField(theForm, theFieldName);


    return isEmpty;
} // end of the 'emptyFormElements()' function


/**
 * Ensures a value submitted in a form is numeric and is in a range
 *
 * @param   object   the form
 * @param   string   the name of the form field to check
 * @param   integer  the minimum authorized value
 * @param   integer  the maximum authorized value
 *
 * @return  boolean  whether a valid number has been submitted or not
 */
function checkFormElementInRange(theForm, theFieldName, message, min, max)
{
    var theField         = theForm.elements[theFieldName];
    var val              = parseInt(theField.value);

    if (typeof(min) == 'undefined') {
        min = 0;
    }
    if (typeof(max) == 'undefined') {
        max = Number.MAX_VALUE;
    }

    // It's not a number
    if (isNaN(val)) {
        theField.select();
        alert(PMA_messages['strNotNumber']);
        theField.focus();
        return false;
    }
    // It's a number but it is not between min and max
    else if (val < min || val > max) {
        theField.select();
        alert(message.replace('%d', val));
        theField.focus();
        return false;
    }
    // It's a valid number
    else {
        theField.value = val;
    }
    return true;

} // end of the 'checkFormElementInRange()' function


function checkTableEditForm(theForm, fieldsCnt)
{
    // TODO: avoid sending a message if user just wants to add a line
    // on the form but has not completed at least one field name

    var atLeastOneField = 0;
    var i, elm, elm2, elm3, val, id;

    for (i=0; i<fieldsCnt; i++)
    {
        id = "#field_" + i + "_2";
        elm = $(id);
        val = elm.val()
        if (val == 'VARCHAR' || val == 'CHAR' || val == 'BIT' || val == 'VARBINARY' || val == 'BINARY') {
            elm2 = $("#field_" + i + "_3");
            val = parseInt(elm2.val());
            elm3 = $("#field_" + i + "_1");
            if (isNaN(val) && elm3.val() != "") {
                elm2.select();
                alert(PMA_messages['strNotNumber']);
                elm2.focus();
                return false;
            }
        }

        if (atLeastOneField == 0) {
            id = "field_" + i + "_1";
            if (!emptyCheckTheField(theForm, id)) {
                atLeastOneField = 1;
            }
        }
    }
    if (atLeastOneField == 0) {
        var theField = theForm.elements["field_0_1"];
        alert(PMA_messages['strFormEmpty']);
        theField.focus();
        return false;
    }

    // at least this section is under jQuery
    if ($("input.textfield[name='table']").val() == "") {
        alert(PMA_messages['strFormEmpty']);
        $("input.textfield[name='table']").focus();
        return false;
    }


    return true;
} // enf of the 'checkTableEditForm()' function


/**
 * Ensures the choice between 'transmit', 'zipped', 'gzipped' and 'bzipped'
 * checkboxes is consistant
 *
 * @param   object   the form
 * @param   string   a code for the action that causes this function to be run
 *
 * @return  boolean  always true
 */
function checkTransmitDump(theForm, theAction)
{
    var formElts = theForm.elements;

    // 'zipped' option has been checked
    if (theAction == 'zip' && formElts['zip'].checked) {
        if (!formElts['asfile'].checked) {
            theForm.elements['asfile'].checked = true;
        }
        if (typeof(formElts['gzip']) != 'undefined' && formElts['gzip'].checked) {
            theForm.elements['gzip'].checked = false;
        }
        if (typeof(formElts['bzip']) != 'undefined' && formElts['bzip'].checked) {
            theForm.elements['bzip'].checked = false;
        }
    }
    // 'gzipped' option has been checked
    else if (theAction == 'gzip' && formElts['gzip'].checked) {
        if (!formElts['asfile'].checked) {
            theForm.elements['asfile'].checked = true;
        }
        if (typeof(formElts['zip']) != 'undefined' && formElts['zip'].checked) {
            theForm.elements['zip'].checked = false;
        }
        if (typeof(formElts['bzip']) != 'undefined' && formElts['bzip'].checked) {
            theForm.elements['bzip'].checked = false;
        }
    }
    // 'bzipped' option has been checked
    else if (theAction == 'bzip' && formElts['bzip'].checked) {
        if (!formElts['asfile'].checked) {
            theForm.elements['asfile'].checked = true;
        }
        if (typeof(formElts['zip']) != 'undefined' && formElts['zip'].checked) {
            theForm.elements['zip'].checked = false;
        }
        if (typeof(formElts['gzip']) != 'undefined' && formElts['gzip'].checked) {
            theForm.elements['gzip'].checked = false;
        }
    }
    // 'transmit' option has been unchecked
    else if (theAction == 'transmit' && !formElts['asfile'].checked) {
        if (typeof(formElts['zip']) != 'undefined' && formElts['zip'].checked) {
            theForm.elements['zip'].checked = false;
        }
        if ((typeof(formElts['gzip']) != 'undefined' && formElts['gzip'].checked)) {
            theForm.elements['gzip'].checked = false;
        }
        if ((typeof(formElts['bzip']) != 'undefined' && formElts['bzip'].checked)) {
            theForm.elements['bzip'].checked = false;
        }
    }

    return true;
} // end of the 'checkTransmitDump()' function

$(document).ready(function() {
    /**
     * Row marking in horizontal mode (use "live" so that it works also for
     * next pages reached via AJAX); a tr may have the class noclick to remove
     * this behavior.
     */
    $('tr.odd:not(.noclick), tr.even:not(.noclick)').live('click',function(e) {
        // do not trigger when clicked on anchor
        if ($(e.target).is('a, img, a *')) {
            return;
        }
        // XXX: FF fires two click events for <label> (label and checkbox), so we need to handle this differently
        var $tr = $(this);
        var $checkbox = $tr.find(':checkbox');
        if ($checkbox.length) {
            // checkbox in a row, add or remove class depending on checkbox state
            var checked = $checkbox.attr('checked');
            if (!$(e.target).is(':checkbox, label')) {
                checked = !checked;
                $checkbox.attr('checked', checked);
            }
            if (checked) {
                $tr.addClass('marked');
            } else {
                $tr.removeClass('marked');
            }
        } else {
            // normaln data table, just toggle class
            $tr.toggleClass('marked');
        }
    });

    /**
     * Add a date/time picker to each element that needs it
     */
    $('.datefield, .datetimefield').each(function() {
        PMA_addDatepicker($(this));
        });
})

/**
 * Row highlighting in horizontal mode (use "live"
 * so that it works also for pages reached via AJAX)
 */
$(document).ready(function() {
    $('tr.odd, tr.even').live('hover',function() {
        var $tr = $(this);
        $tr.toggleClass('hover');
        $tr.children().toggleClass('hover');
    });
})

/**
 * This array is used to remember mark status of rows in browse mode
 */
var marked_row = new Array;

/**
 * marks all rows and selects its first checkbox inside the given element
 * the given element is usaly a table or a div containing the table or tables
 *
 * @param    container    DOM element
 */
function markAllRows( container_id ) {

    $("#"+container_id).find("input:checkbox:enabled").attr('checked', 'checked')
    .parents("tr").addClass("marked");
    return true;
}

/**
 * marks all rows and selects its first checkbox inside the given element
 * the given element is usaly a table or a div containing the table or tables
 *
 * @param    container    DOM element
 */
function unMarkAllRows( container_id ) {

    $("#"+container_id).find("input:checkbox:enabled").removeAttr('checked')
    .parents("tr").removeClass("marked");
    return true;
}

/**
 * Checks/unchecks all checkbox in given conainer (f.e. a form, fieldset or div)
 *
 * @param   string   container_id  the container id
 * @param   boolean  state         new value for checkbox (true or false)
 * @return  boolean  always true
 */
function setCheckboxes( container_id, state ) {

    if(state) {
        $("#"+container_id).find("input:checkbox").attr('checked', 'checked');
    }
    else {
        $("#"+container_id).find("input:checkbox").removeAttr('checked');
    }

    return true;
} // end of the 'setCheckboxes()' function

/**
  * Checks/unchecks all options of a <select> element
  *
  * @param   string   the form name
  * @param   string   the element name
  * @param   boolean  whether to check or to uncheck options
  *
  * @return  boolean  always true
  */
function setSelectOptions(the_form, the_select, do_check)
{
    $("form[name='"+ the_form +"'] select[name='"+the_select+"']").find("option").attr('selected', do_check);
    return true;
} // end of the 'setSelectOptions()' function


/**
  * Create quick sql statements.
  *
  */
function insertQuery(queryType) {
    var myQuery = document.sqlform.sql_query;
    var myListBox = document.sqlform.dummy;
    var query = "";
    var table = document.sqlform.table.value;

    if (myListBox.options.length > 0) {
        sql_box_locked = true;
        var chaineAj = "";
        var valDis = "";
        var editDis = "";
        var NbSelect = 0;
        for (var i=0; i < myListBox.options.length; i++) {
            NbSelect++;
            if (NbSelect > 1) {
                chaineAj += ", ";
                valDis += ",";
                editDis += ",";
            }
            chaineAj += myListBox.options[i].value;
            valDis += "[value-" + NbSelect + "]";
            editDis += myListBox.options[i].value + "=[value-" + NbSelect + "]";
        }
        if (queryType == "selectall") {
            query = "SELECT * FROM `" + table + "` WHERE 1";
        } else if (queryType == "select") {
            query = "SELECT " + chaineAj + " FROM `" + table + "` WHERE 1";
        } else if (queryType == "insert") {
               query = "INSERT INTO `" + table + "`(" + chaineAj + ") VALUES (" + valDis + ")";
        } else if (queryType == "update") {
            query = "UPDATE `" + table + "` SET " + editDis + " WHERE 1";
        } else if(queryType == "delete") {
            query = "DELETE FROM `" + table + "` WHERE 1";
        }
        document.sqlform.sql_query.value = query;
        sql_box_locked = false;
    }
}


/**
  * Inserts multiple fields.
  *
  */
function insertValueQuery() {
    var myQuery = document.sqlform.sql_query;
    var myListBox = document.sqlform.dummy;

    if(myListBox.options.length > 0) {
        sql_box_locked = true;
        var chaineAj = "";
        var NbSelect = 0;
        for(var i=0; i<myListBox.options.length; i++) {
            if (myListBox.options[i].selected){
                NbSelect++;
                if (NbSelect > 1)
                    chaineAj += ", ";
                chaineAj += myListBox.options[i].value;
            }
        }

        //IE support
        if (document.selection) {
            myQuery.focus();
            sel = document.selection.createRange();
            sel.text = chaineAj;
            document.sqlform.insert.focus();
        }
        //MOZILLA/NETSCAPE support
        else if (document.sqlform.sql_query.selectionStart || document.sqlform.sql_query.selectionStart == "0") {
            var startPos = document.sqlform.sql_query.selectionStart;
            var endPos = document.sqlform.sql_query.selectionEnd;
            var chaineSql = document.sqlform.sql_query.value;

            myQuery.value = chaineSql.substring(0, startPos) + chaineAj + chaineSql.substring(endPos, chaineSql.length);
        } else {
            myQuery.value += chaineAj;
        }
        sql_box_locked = false;
    }
}

/**
  * listbox redirection
  */
function goToUrl(selObj, goToLocation) {
    eval("document.location.href = '" + goToLocation + "pos=" + selObj.options[selObj.selectedIndex].value + "'");
}

/**
 * getElement
 */
function getElement(e,f){
    if(document.layers){
        f=(f)?f:self;
        if(f.document.layers[e]) {
            return f.document.layers[e];
        }
        for(W=0;W<f.document.layers.length;W++) {
            return(getElement(e,f.document.layers[W]));
        }
    }
    if(document.all) {
        return document.all[e];
    }
    return document.getElementById(e);
}

/**
  * Refresh the WYSIWYG scratchboard after changes have been made
  */
function refreshDragOption(e) {
    var elm = $('#' + e);
    if (elm.css('visibility') == 'visible') {
        refreshLayout();
        TableDragInit();
    }
}

/**
  * Refresh/resize the WYSIWYG scratchboard
  */
function refreshLayout() {
    var elm = $('#pdflayout')
    var orientation = $('#orientation_opt').val();
    if($('#paper_opt').length==1){
        var paper = $('#paper_opt').val();
    }else{
        var paper = 'A4';
    }
    if (orientation == 'P') {
        posa = 'x';
        posb = 'y';
    } else {
        posa = 'y';
        posb = 'x';
    }
    elm.css('width', pdfPaperSize(paper, posa) + 'px');
    elm.css('height', pdfPaperSize(paper, posb) + 'px');
}

/**
  * Show/hide the WYSIWYG scratchboard
  */
function ToggleDragDrop(e) {
    var elm = $('#' + e);
    if (elm.css('visibility') == 'hidden') {
        PDFinit(); /* Defined in pdf_pages.php */
        elm.css('visibility', 'visible');
        elm.css('display', 'block');
        $('#showwysiwyg').val('1')
    } else {
        elm.css('visibility', 'hidden');
        elm.css('display', 'none');
        $('#showwysiwyg').val('0')
    }
}

/**
  * PDF scratchboard: When a position is entered manually, update
  * the fields inside the scratchboard.
  */
function dragPlace(no, axis, value) {
    var elm = $('#table_' + no);
    if (axis == 'x') {
        elm.css('left', value + 'px');
    } else {
        elm.css('top', value + 'px');
    }
}

/**
 * Returns paper sizes for a given format
 */
function pdfPaperSize(format, axis) {
    switch (format.toUpperCase()) {
        case '4A0':
            if (axis == 'x') return 4767.87; else return 6740.79;
            break;
        case '2A0':
            if (axis == 'x') return 3370.39; else return 4767.87;
            break;
        case 'A0':
            if (axis == 'x') return 2383.94; else return 3370.39;
            break;
        case 'A1':
            if (axis == 'x') return 1683.78; else return 2383.94;
            break;
        case 'A2':
            if (axis == 'x') return 1190.55; else return 1683.78;
            break;
        case 'A3':
            if (axis == 'x') return 841.89; else return 1190.55;
            break;
        case 'A4':
            if (axis == 'x') return 595.28; else return 841.89;
            break;
        case 'A5':
            if (axis == 'x') return 419.53; else return 595.28;
            break;
        case 'A6':
            if (axis == 'x') return 297.64; else return 419.53;
            break;
        case 'A7':
            if (axis == 'x') return 209.76; else return 297.64;
            break;
        case 'A8':
            if (axis == 'x') return 147.40; else return 209.76;
            break;
        case 'A9':
            if (axis == 'x') return 104.88; else return 147.40;
            break;
        case 'A10':
            if (axis == 'x') return 73.70; else return 104.88;
            break;
        case 'B0':
            if (axis == 'x') return 2834.65; else return 4008.19;
            break;
        case 'B1':
            if (axis == 'x') return 2004.09; else return 2834.65;
            break;
        case 'B2':
            if (axis == 'x') return 1417.32; else return 2004.09;
            break;
        case 'B3':
            if (axis == 'x') return 1000.63; else return 1417.32;
            break;
        case 'B4':
            if (axis == 'x') return 708.66; else return 1000.63;
            break;
        case 'B5':
            if (axis == 'x') return 498.90; else return 708.66;
            break;
        case 'B6':
            if (axis == 'x') return 354.33; else return 498.90;
            break;
        case 'B7':
            if (axis == 'x') return 249.45; else return 354.33;
            break;
        case 'B8':
            if (axis == 'x') return 175.75; else return 249.45;
            break;
        case 'B9':
            if (axis == 'x') return 124.72; else return 175.75;
            break;
        case 'B10':
            if (axis == 'x') return 87.87; else return 124.72;
            break;
        case 'C0':
            if (axis == 'x') return 2599.37; else return 3676.54;
            break;
        case 'C1':
            if (axis == 'x') return 1836.85; else return 2599.37;
            break;
        case 'C2':
            if (axis == 'x') return 1298.27; else return 1836.85;
            break;
        case 'C3':
            if (axis == 'x') return 918.43; else return 1298.27;
            break;
        case 'C4':
            if (axis == 'x') return 649.13; else return 918.43;
            break;
        case 'C5':
            if (axis == 'x') return 459.21; else return 649.13;
            break;
        case 'C6':
            if (axis == 'x') return 323.15; else return 459.21;
            break;
        case 'C7':
            if (axis == 'x') return 229.61; else return 323.15;
            break;
        case 'C8':
            if (axis == 'x') return 161.57; else return 229.61;
            break;
        case 'C9':
            if (axis == 'x') return 113.39; else return 161.57;
            break;
        case 'C10':
            if (axis == 'x') return 79.37; else return 113.39;
            break;
        case 'RA0':
            if (axis == 'x') return 2437.80; else return 3458.27;
            break;
        case 'RA1':
            if (axis == 'x') return 1729.13; else return 2437.80;
            break;
        case 'RA2':
            if (axis == 'x') return 1218.90; else return 1729.13;
            break;
        case 'RA3':
            if (axis == 'x') return 864.57; else return 1218.90;
            break;
        case 'RA4':
            if (axis == 'x') return 609.45; else return 864.57;
            break;
        case 'SRA0':
            if (axis == 'x') return 2551.18; else return 3628.35;
            break;
        case 'SRA1':
            if (axis == 'x') return 1814.17; else return 2551.18;
            break;
        case 'SRA2':
            if (axis == 'x') return 1275.59; else return 1814.17;
            break;
        case 'SRA3':
            if (axis == 'x') return 907.09; else return 1275.59;
            break;
        case 'SRA4':
            if (axis == 'x') return 637.80; else return 907.09;
            break;
        case 'LETTER':
            if (axis == 'x') return 612.00; else return 792.00;
            break;
        case 'LEGAL':
            if (axis == 'x') return 612.00; else return 1008.00;
            break;
        case 'EXECUTIVE':
            if (axis == 'x') return 521.86; else return 756.00;
            break;
        case 'FOLIO':
            if (axis == 'x') return 612.00; else return 936.00;
            break;
    } // end switch

    return 0;
}

/**
 * for playing media from the BLOB repository
 *
 * @param   var
 * @param   var     url_params  main purpose is to pass the token
 * @param   var     bs_ref      BLOB repository reference
 * @param   var     m_type      type of BLOB repository media
 * @param   var     w_width     width of popup window
 * @param   var     w_height    height of popup window
 */
function popupBSMedia(url_params, bs_ref, m_type, is_cust_type, w_width, w_height)
{
    // if width not specified, use default
    if (w_width == undefined)
        w_width = 640;

    // if height not specified, use default
    if (w_height == undefined)
        w_height = 480;

    // open popup window (for displaying video/playing audio)
    var mediaWin = window.open('bs_play_media.php?' + url_params + '&bs_reference=' + bs_ref + '&media_type=' + m_type + '&custom_type=' + is_cust_type, 'viewBSMedia', 'width=' + w_width + ', height=' + w_height + ', resizable=1, scrollbars=1, status=0');
}

/**
 * popups a request for changing MIME types for files in the BLOB repository
 *
 * @param   var     db                      database name
 * @param   var     table                   table name
 * @param   var     reference               BLOB repository reference
 * @param   var     current_mime_type       current MIME type associated with BLOB repository reference
 */
function requestMIMETypeChange(db, table, reference, current_mime_type)
{
    // no mime type specified, set to default (nothing)
    if (undefined == current_mime_type)
        current_mime_type = "";

    // prompt user for new mime type
    var new_mime_type = prompt("Enter custom MIME type", current_mime_type);

    // if new mime_type is specified and is not the same as the previous type, request for mime type change
    if (new_mime_type && new_mime_type != current_mime_type)
        changeMIMEType(db, table, reference, new_mime_type);
}

/**
 * changes MIME types for files in the BLOB repository
 *
 * @param   var     db              database name
 * @param   var     table           table name
 * @param   var     reference       BLOB repository reference
 * @param   var     mime_type       new MIME type to be associated with BLOB repository reference
 */
function changeMIMEType(db, table, reference, mime_type)
{
    // specify url and parameters for jQuery POST
    var mime_chg_url = 'bs_change_mime_type.php';
    var params = {bs_db: db, bs_table: table, bs_reference: reference, bs_new_mime_type: mime_type};

    // jQuery POST
    jQuery.post(mime_chg_url, params);
}

/**
 * Jquery Coding for inline editing SQL_QUERY
 */
$(document).ready(function(){
    $(".inline_edit_sql").live('click', function(){
        var server     = $(this).prev().find("input[name='server']").val();
        var db         = $(this).prev().find("input[name='db']").val();
        var table      = $(this).prev().find("input[name='table']").val();
        var token      = $(this).prev().find("input[name='token']").val();
        var sql_query  = $(this).prev().find("input[name='sql_query']").val();
        var $inner_sql = $(this).parent().prev().find('.inner_sql');
        var old_text   = $inner_sql.html();

        var new_content = "<textarea name=\"sql_query_edit\" id=\"sql_query_edit\">" + sql_query + "</textarea>\n";
        new_content    += "<input type=\"button\" class=\"btnSave\" value=\"" + PMA_messages['strGo'] + "\">\n";
        new_content    += "<input type=\"button\" class=\"btnDiscard\" value=\"" + PMA_messages['strCancel'] + "\">\n";
        $inner_sql.replaceWith(new_content);
        $(".btnSave").each(function(){
            $(this).click(function(){
                sql_query = $(this).prev().val();
                window.location.replace("import.php"
                                      + "?server=" + encodeURIComponent(server)
                                      + "&db=" + encodeURIComponent(db)
                                      + "&table=" + encodeURIComponent(table)
                                      + "&sql_query=" + encodeURIComponent(sql_query)
                                      + "&show_query=1"
                                      + "&token=" + token);
            });
        });
        $(".btnDiscard").each(function(){
            $(this).click(function(){
                $(this).closest(".sql").html("<span class=\"syntax\"><span class=\"inner_sql\">" + old_text + "</span></span>");
            });
        });
        return false;
    });

    $('.sqlbutton').click(function(evt){
        if (evt.target.id == 'clear') {
            $('#sqlquery').val('');
        } else {
            insertQuery(evt.target.id);
        }
        return false;
    });

    $("#export_type").change(function(){
        if($("#export_type").val()=='svg'){
            $("#show_grid_opt").attr("disabled","disabled");
            $("#orientation_opt").attr("disabled","disabled");
            $("#with_doc").attr("disabled","disabled");
            $("#show_table_dim_opt").removeAttr("disabled");
            $("#all_table_same_wide").removeAttr("disabled");
            $("#paper_opt").removeAttr("disabled","disabled");
            $("#show_color_opt").removeAttr("disabled","disabled");
            //$(this).css("background-color","yellow");
        }else if($("#export_type").val()=='dia'){
            $("#show_grid_opt").attr("disabled","disabled");
            $("#with_doc").attr("disabled","disabled");
            $("#show_table_dim_opt").attr("disabled","disabled");
            $("#all_table_same_wide").attr("disabled","disabled");
            $("#paper_opt").removeAttr("disabled","disabled");
            $("#show_color_opt").removeAttr("disabled","disabled");
            $("#orientation_opt").removeAttr("disabled","disabled");
        }else if($("#export_type").val()=='eps'){
            $("#show_grid_opt").attr("disabled","disabled");
            $("#orientation_opt").removeAttr("disabled");
            $("#with_doc").attr("disabled","disabled");
            $("#show_table_dim_opt").attr("disabled","disabled");
            $("#all_table_same_wide").attr("disabled","disabled");
            $("#paper_opt").attr("disabled","disabled");
            $("#show_color_opt").attr("disabled","disabled");

        }else if($("#export_type").val()=='pdf'){
            $("#show_grid_opt").removeAttr("disabled");
            $("#orientation_opt").removeAttr("disabled");
            $("#with_doc").removeAttr("disabled","disabled");
            $("#show_table_dim_opt").removeAttr("disabled","disabled");
            $("#all_table_same_wide").removeAttr("disabled","disabled");
            $("#paper_opt").removeAttr("disabled","disabled");
            $("#show_color_opt").removeAttr("disabled","disabled");
        }else{
            // nothing
        }
    });

    $('#sqlquery').focus();
    if ($('#input_username')) {
        if ($('#input_username').val() == '') {
            $('#input_username').focus();
        } else {
            $('#input_password').focus();
        }
    }
});

/**
 * Show a message on the top of the page for an Ajax request
 *
 * @param   var     message     string containing the message to be shown.
 *                              optional, defaults to 'Loading...'
 * @param   var     timeout     number of milliseconds for the message to be visible
 *                              optional, defaults to 5000
 */

function PMA_ajaxShowMessage(message, timeout) {

    //Handle the case when a empty data.message is passed.  We don't want the empty message
    if(message == '') {
        return true;
    }

    /**
     * @var msg String containing the message that has to be displayed
     * @default PMA_messages['strLoading']
     */
    if(!message) {
        var msg = PMA_messages['strLoading'];
    }
    else {
        var msg = message;
    }

    /**
     * @var timeout Number of milliseconds for which {@link msg} will be visible
     * @default 5000 ms
     */
    if(!timeout) {
        var to = 5000;
    }
    else {
        var to = timeout;
    }

    if( !ajax_message_init) {
        //For the first time this function is called, append a new div
        $(function(){
            $('<div id="loading_parent"></div>')
            .insertBefore("#serverinfo");

            $('<span id="loading" class="ajax_notification"></span>')
            .appendTo("#loading_parent")
            .html(msg)
            .fadeIn('medium')
            .delay(to)
            .fadeOut('medium', function(){
                $(this)
                .html("") //Clear the message
                .hide();
            });
        }, 'top.frame_content');
        ajax_message_init = true;
    }
    else {
        //Otherwise, just show the div again after inserting the message
        $("#loading")
        .stop(true, true)
        .html(msg)
        .fadeIn('medium')
        .delay(to)
        .fadeOut('medium', function() {
            $(this)
            .html("")
            .hide();
        })
    }
	
	return $("#loading");
}

/**
 * Removes the message shown for an Ajax operation when it's completed
 */
function PMA_ajaxRemoveMessage($this_msgbox) {
    $this_msgbox
     .stop(true, true)
     .fadeOut('medium', function() {
        $this_msgbox.hide();
     });
}

/**
 * Hides/shows the "Open in ENUM/SET editor" message, depending on the data type of the column currently selected
 */
function PMA_showNoticeForEnum(selectElement) {
    var enum_notice_id = selectElement.attr("id").split("_")[1];
    enum_notice_id += "_" + (parseInt(selectElement.attr("id").split("_")[2]) + 1);
    var selectedType = selectElement.attr("value");
    if (selectedType == "ENUM" || selectedType == "SET") {
        $("p[id='enum_notice_" + enum_notice_id + "']").show();
    } else {
        $("p[id='enum_notice_" + enum_notice_id + "']").hide();
    }
}

/**
 * jQuery function that uses jQueryUI's dialogs to confirm with user. Does not
 *  return a jQuery object yet and hence cannot be chained
 *
 * @param   string      question
 * @param   string      url         URL to be passed to the callbackFn to make
 *                                  an Ajax call to
 * @param   function    callbackFn  callback to execute after user clicks on OK
 */

jQuery.fn.PMA_confirm = function(question, url, callbackFn) {
    if (PMA_messages['strDoYouReally'] == '') {
        return true;
    }

    /**
     *  @var    button_options  Object that stores the options passed to jQueryUI
     *                          dialog
     */
    var button_options = {};
    button_options[PMA_messages['strOK']] = function(){
                                                $(this).dialog("close").remove();

                                                if($.isFunction(callbackFn)) {
                                                    callbackFn.call(this, url);
                                                }
                                            };
    button_options[PMA_messages['strCancel']] = function() {$(this).dialog("close").remove();}

    $('<div id="confirm_dialog"></div>')
    .prepend(question)
    .dialog({buttons: button_options});
};

/**
 * jQuery function to sort a table's body after a new row has been appended to it.
 * Also fixes the even/odd classes of the table rows at the end.
 *
 * @param   string      text_selector   string to select the sortKey's text
 *
 * @return  jQuery Object for chaining purposes
 */
jQuery.fn.PMA_sort_table = function(text_selector) {
    return this.each(function() {

        /**
         * @var table_body  Object referring to the table's <tbody> element
         */
        var table_body = $(this);
        /**
         * @var rows    Object referring to the collection of rows in {@link table_body}
         */
        var rows = $(this).find('tr').get();

        //get the text of the field that we will sort by
        $.each(rows, function(index, row) {
            row.sortKey = $.trim($(row).find(text_selector).text().toLowerCase());
        })

        //get the sorted order
        rows.sort(function(a,b) {
            if(a.sortKey < b.sortKey) {
                return -1;
            }
            if(a.sortKey > b.sortKey) {
                return 1;
            }
            return 0;
        })

        //pull out each row from the table and then append it according to it's order
        $.each(rows, function(index, row) {
            $(table_body).append(row);
            row.sortKey = null;
        })

        //Re-check the classes of each row
        $(this).find('tr:odd')
        .removeClass('even').addClass('odd')
        .end()
        .find('tr:even')
        .removeClass('odd').addClass('even');
    })
}

/**
 * jQuery coding for 'Create Table'.  Used on db_operations.php,
 * db_structure.php and db_tracking.php (i.e., wherever
 * libraries/display_create_table.lib.php is used)
 *
 * Attach Ajax Event handlers for Create Table
 */
$(document).ready(function() {

    /**
     * Attach event handler to the submit action of the create table minimal form
     * and retrieve the full table form and display it in a dialog
     *
     * @uses    PMA_ajaxShowMessage()
     */
    $("#create_table_form_minimal.ajax").live('submit', function(event) {
        event.preventDefault();
        $form = $(this);

        /* @todo Validate this form! */

        /**
         *  @var    button_options  Object that stores the options passed to jQueryUI
         *                          dialog
         */
        var button_options = {};
        // in the following function we need to use $(this)
        button_options[PMA_messages['strCancel']] = function() {$(this).dialog('close').remove();}

        var button_options_error = {};
        button_options_error[PMA_messages['strOK']] = function() {$(this).dialog('close').remove();}

        var $msgbox = PMA_ajaxShowMessage();
        PMA_prepareForAjaxRequest($form);

        $.get($form.attr('action'), $form.serialize(), function(data) {
            //in the case of an error, show the error message returned.
            if (data.success != undefined && data.success == false) {
                $('<div id="create_table_dialog"></div>')
                .append(data.error)
                .dialog({
                    title: PMA_messages['strCreateTable'],
                    height: 230,
                    width: 900,
                    open: PMA_verifyTypeOfAllColumns,
                    buttons : button_options_error
                })// end dialog options
                //remove the redundant [Back] link in the error message.
                .find('fieldset').remove();
            } else {
                $('<div id="create_table_dialog"></div>')
                .append(data)
                .dialog({
                    title: PMA_messages['strCreateTable'],
                    height: 600,
                    width: 900,
                    open: PMA_verifyTypeOfAllColumns,
                    buttons : button_options
                }); // end dialog options
            }            
            PMA_ajaxRemoveMessage($msgbox);
        }) // end $.get()

        // empty table name and number of columns from the minimal form
        $form.find('input[name=table],input[name=num_fields]').val('');
    });

    /**
     * Attach event handler for submission of create table form (save)
     *
     * @uses    PMA_ajaxShowMessage()
     * @uses    $.PMA_sort_table()
     *
     */
    // .live() must be called after a selector, see http://api.jquery.com/live
    $("#create_table_form input[name=do_save_data]").live('click', function(event) {
        event.preventDefault();

        /**
         *  @var    the_form    object referring to the create table form
         */
        var $form = $("#create_table_form");

        /*
         * First validate the form; if there is a problem, avoid submitting it
         *
         * checkTableEditForm() needs a pure element and not a jQuery object,
         * this is why we pass $form[0] as a parameter (the jQuery object
         * is actually an array of DOM elements)
         */

        if (checkTableEditForm($form[0], $form.find('input[name=orig_num_fields]').val())) {
            // OK, form passed validation step
            if ($form.hasClass('ajax')) {
                PMA_ajaxShowMessage(PMA_messages['strProcessingRequest']);
                PMA_prepareForAjaxRequest($form);
                //User wants to submit the form
                $.post($form.attr('action'), $form.serialize() + "&do_save_data=" + $(this).val(), function(data) {
                    if(data.success == true) {
                        $('#properties_message')
                         .removeClass('error')
                         .html('');
                        PMA_ajaxShowMessage(data.message);
                        // Only if the create table dialog (distinct panel) exists
                        if ($("#create_table_dialog").length > 0) {
                            $("#create_table_dialog").dialog("close").remove();
                        }

                        /**
                         * @var tables_table    Object referring to the <tbody> element that holds the list of tables
                         */
                        var tables_table = $("#tablesForm").find("tbody").not("#tbl_summary_row");
                        // this is the first table created in this db
                        if (tables_table.length == 0) {
                            if (window.parent && window.parent.frame_content) {
                                window.parent.frame_content.location.reload();
                            }
                        } else {
                            /**
                             * @var curr_last_row   Object referring to the last <tr> element in {@link tables_table}
                             */
                            var curr_last_row = $(tables_table).find('tr:last');
                            /**
                             * @var curr_last_row_index_string   String containing the index of {@link curr_last_row}
                             */
                            var curr_last_row_index_string = $(curr_last_row).find('input:checkbox').attr('id').match(/\d+/)[0];
                            /**
                             * @var curr_last_row_index Index of {@link curr_last_row}
                             */
                            var curr_last_row_index = parseFloat(curr_last_row_index_string);
                            /**
                             * @var new_last_row_index   Index of the new row to be appended to {@link tables_table}
                             */
                            var new_last_row_index = curr_last_row_index + 1;
                            /**
                             * @var new_last_row_id String containing the id of the row to be appended to {@link tables_table}
                             */
                            var new_last_row_id = 'checkbox_tbl_' + new_last_row_index;

                            data.new_table_string = data.new_table_string.replace(/checkbox_tbl_/, new_last_row_id);
                            //append to table
                            $(data.new_table_string)
                             .appendTo(tables_table);

                            //Sort the table
                            $(tables_table).PMA_sort_table('th');
                        }

                        //Refresh navigation frame as a new table has been added
                        if (window.parent && window.parent.frame_navigation) {
                            window.parent.frame_navigation.location.reload();
                        }
                    } else {
                        $('#properties_message')
                         .addClass('error')
                         .html(data.error);
                        // scroll to the div containing the error message
                        $('#properties_message')[0].scrollIntoView();
                    }
                }) // end $.post()
            } // end if ($form.hasClass('ajax')
            else {
                // non-Ajax submit
                $form.append('<input type="hidden" name="do_save_data" value="save" />');
                $form.submit();
            }
        } // end if (checkTableEditForm() )
    }) // end create table form (save)

    /**
     * Attach event handler for create table form (add fields)
     *
     * @uses    PMA_ajaxShowMessage()
     * @uses    $.PMA_sort_table()
     * @uses    window.parent.refreshNavigation()
     *
     */
    // .live() must be called after a selector, see http://api.jquery.com/live
    $("#create_table_form.ajax input[name=submit_num_fields]").live('click', function(event) {
        event.preventDefault();

        /**
         *  @var    the_form    object referring to the create table form
         */
        var $form = $("#create_table_form");

        var $msgbox = PMA_ajaxShowMessage(PMA_messages['strProcessingRequest']);
        PMA_prepareForAjaxRequest($form);

        //User wants to add more fields to the table
        $.post($form.attr('action'), $form.serialize() + "&submit_num_fields=" + $(this).val(), function(data) {
            // if 'create_table_dialog' exists
            if ($("#create_table_dialog").length > 0) {
                $("#create_table_dialog").html(data);
            }
            // if 'create_table_div' exists
            if ($("#create_table_div").length > 0) {
                $("#create_table_div").html(data);
            }
            PMA_verifyTypeOfAllColumns();
            PMA_ajaxRemoveMessage($msgbox);    
        }) //end $.post()

    }) // end create table form (add fields)

}, 'top.frame_content'); //end $(document).ready for 'Create Table'

/**
 * Attach Ajax event handlers for Drop Trigger.  Used on tbl_structure.php
 * @see $cfg['AjaxEnable']
 */
$(document).ready(function() {

    $(".drop_trigger_anchor").live('click', function(event) {
        event.preventDefault();

        $anchor = $(this);
        /**
         * @var curr_row    Object reference to the current trigger's <tr>
         */
        var $curr_row = $anchor.parents('tr');
        /**
         * @var question    String containing the question to be asked for confirmation
         */
        var question = 'DROP TRIGGER IF EXISTS `' + $curr_row.children('td:first').text() + '`';

        $anchor.PMA_confirm(question, $anchor.attr('href'), function(url) {

            PMA_ajaxShowMessage(PMA_messages['strProcessingRequest']);
            $.get(url, {'is_js_confirmed': 1, 'ajax_request': true}, function(data) {
                if(data.success == true) {
                    PMA_ajaxShowMessage(data.message);
                    $("#topmenucontainer")
                    .next('div')
                    .remove()
                    .end()
                    .after(data.sql_query);
                    $curr_row.hide("medium").remove();
                }
                else {
                    PMA_ajaxShowMessage(data.error);
                }
            }) // end $.get()
        }) // end $.PMA_confirm()
    }) // end $().live()
}, 'top.frame_content'); //end $(document).ready() for Drop Trigger

/**
 * Attach Ajax event handlers for Drop Database. Moved here from db_structure.js
 * as it was also required on db_create.php
 *
 * @uses    $.PMA_confirm()
 * @uses    PMA_ajaxShowMessage()
 * @uses    window.parent.refreshNavigation()
 * @uses    window.parent.refreshMain()
 * @see $cfg['AjaxEnable']
 */
$(document).ready(function() {
    $("#drop_db_anchor").live('click', function(event) {
        event.preventDefault();

        //context is top.frame_content, so we need to use window.parent.db to access the db var
        /**
         * @var question    String containing the question to be asked for confirmation
         */
        var question = PMA_messages['strDropDatabaseStrongWarning'] + '\n' + PMA_messages['strDoYouReally'] + ' :\n' + 'DROP DATABASE ' + escapeHtml(window.parent.db);

        $(this).PMA_confirm(question, $(this).attr('href') ,function(url) {

            PMA_ajaxShowMessage(PMA_messages['strProcessingRequest']);
            $.get(url, {'is_js_confirmed': '1', 'ajax_request': true}, function(data) {
                //Database deleted successfully, refresh both the frames
                window.parent.refreshNavigation();
                window.parent.refreshMain();
            }) // end $.get()
        }); // end $.PMA_confirm()
    }); //end of Drop Database Ajax action
}) // end of $(document).ready() for Drop Database

/**
 * Attach Ajax event handlers for 'Create Database'.  Used wherever libraries/
 * display_create_database.lib.php is used, ie main.php and server_databases.php
 *
 * @uses    PMA_ajaxShowMessage()
 * @see $cfg['AjaxEnable']
 */
$(document).ready(function() {

    $('#create_database_form.ajax').live('submit', function(event) {
        event.preventDefault();

        $form = $(this);

        PMA_ajaxShowMessage(PMA_messages['strProcessingRequest']);
        PMA_prepareForAjaxRequest($form);

        $.post($form.attr('action'), $form.serialize(), function(data) {
            if(data.success == true) {
                PMA_ajaxShowMessage(data.message);

                //Append database's row to table
                $("#tabledatabases")
                .find('tbody')
                .append(data.new_db_string)
                .PMA_sort_table('.name')
                .find('#db_summary_row')
                .appendTo('#tabledatabases tbody')
                .removeClass('odd even');

                var $databases_count_object = $('#databases_count');
                var databases_count = parseInt($databases_count_object.text());
                $databases_count_object.text(++databases_count);
                //Refresh navigation frame as a new database has been added
                if (window.parent && window.parent.frame_navigation) {
                    window.parent.frame_navigation.location.reload();
                }
            }
            else {
                PMA_ajaxShowMessage(data.error);
            }
        }) // end $.post()
    }) // end $().live()
})  // end $(document).ready() for Create Database

/**
 * Attach Ajax event handlers for 'Change Password' on main.php
 */
$(document).ready(function() {

    /**
     * Attach Ajax event handler on the change password anchor
     * @see $cfg['AjaxEnable']
     */
    $('#change_password_anchor.dialog_active').live('click',function(event) {
        event.preventDefault();
        return false;
        });
    $('#change_password_anchor.ajax').live('click', function(event) {
        event.preventDefault();
        $(this).removeClass('ajax').addClass('dialog_active');
        /**
         * @var button_options  Object containing options to be passed to jQueryUI's dialog
         */
        var button_options = {};
        button_options[PMA_messages['strCancel']] = function() {$(this).dialog('close').remove();}
        $.get($(this).attr('href'), {'ajax_request': true}, function(data) {
            $('<div id="change_password_dialog"></div>')
            .dialog({
                title: PMA_messages['strChangePassword'],
                width: 600,
                close: function(ev,ui) {$(this).remove();}, 
                buttons : button_options,
                beforeClose: function(ev,ui){ $('#change_password_anchor.dialog_active').removeClass('dialog_active').addClass('ajax')}
            })
            .append(data);
            displayPasswordGenerateButton();
        }) // end $.get()
    }) // end handler for change password anchor

    /**
     * Attach Ajax event handler for Change Password form submission
     *
     * @uses    PMA_ajaxShowMessage()
     * @see $cfg['AjaxEnable']
     */
    $("#change_password_form.ajax").find('input[name=change_pw]').live('click', function(event) {
        event.preventDefault();

        /**
         * @var the_form    Object referring to the change password form
         */
        var the_form = $("#change_password_form");

        /**
         * @var this_value  String containing the value of the submit button.
         * Need to append this for the change password form on Server Privileges
         * page to work
         */
        var this_value = $(this).val();

        var $msgbox = PMA_ajaxShowMessage(PMA_messages['strProcessingRequest']);
        $(the_form).append('<input type="hidden" name="ajax_request" value="true" />');

        $.post($(the_form).attr('action'), $(the_form).serialize() + '&change_pw='+ this_value, function(data) {
            if(data.success == true) {
                $("#topmenucontainer").after(data.sql_query);
                $("#change_password_dialog").hide().remove();
                $("#edit_user_dialog").dialog("close").remove();
                $('#change_password_anchor.dialog_active').removeClass('dialog_active').addClass('ajax');
                PMA_ajaxRemoveMessage($msgbox); 
            }
            else {
                PMA_ajaxShowMessage(data.error);
            }
        }) // end $.post()
    }) // end handler for Change Password form submission
}) // end $(document).ready() for Change Password

/**
 * Toggle the hiding/showing of the "Open in ENUM/SET editor" message when
 * the page loads and when the selected data type changes
 */
$(document).ready(function() {
    // is called here for normal page loads and also when opening
    // the Create table dialog
    PMA_verifyTypeOfAllColumns();
    //
    // needs live() to work also in the Create Table dialog
    $("select[class='column_type']").live('change', function() {
        PMA_showNoticeForEnum($(this));
    });
});

function PMA_verifyTypeOfAllColumns() {
    $("select[class='column_type']").each(function() {
        PMA_showNoticeForEnum($(this));
    });
}

/**
 * Closes the ENUM/SET editor and removes the data in it
 */
function disable_popup() {
    $("#popup_background").fadeOut("fast");
    $("#enum_editor").fadeOut("fast");
    // clear the data from the text boxes
    $("#enum_editor #values input").remove();
    $("#enum_editor input[type='hidden']").remove();
}

/**
 * Opens the ENUM/SET editor and controls its functions
 */
$(document).ready(function() {
    // Needs live() to work also in the Create table dialog
    $("a[class='open_enum_editor']").live('click', function() {
        // Center the popup
        var windowWidth = document.documentElement.clientWidth;
        var windowHeight = document.documentElement.clientHeight;
        var popupWidth = windowWidth/2;
        var popupHeight = windowHeight*0.8;
        var popupOffsetTop = windowHeight/2 - popupHeight/2;
        var popupOffsetLeft = windowWidth/2 - popupWidth/2;
        $("#enum_editor").css({"position":"absolute", "top": popupOffsetTop, "left": popupOffsetLeft, "width": popupWidth, "height": popupHeight});

        // Make it appear
        $("#popup_background").css({"opacity":"0.7"});
        $("#popup_background").fadeIn("fast");
        $("#enum_editor").fadeIn("fast");

        // Get the values
        var values = $(this).parent().prev("input").attr("value").split(",");
        $.each(values, function(index, val) {
            if(jQuery.trim(val) != "") {
                 // enclose the string in single quotes if it's not already
                 if(val.substr(0, 1) != "'") {
                      val = "'" + val;
                 }
                 if(val.substr(val.length-1, val.length) != "'") {
                      val = val + "'";
                 }
                // escape the single quotes, except the mandatory ones enclosing the entire string
                val = val.substr(1, val.length-2).replace(/''/g, "'").replace(/\\\\/g, '\\').replace(/\\'/g, "'").replace(/'/g, "&#039;");
                // escape the greater-than symbol
                val = val.replace(/>/g, "&gt;");
                $("#enum_editor #values").append("<input type='text' value=" + val + " />");
            }
        });
        // So we know which column's data is being edited
        $("#enum_editor").append("<input type='hidden' value='" + $(this).parent().prev("input").attr("id") + "' />");
        return false;
    });

    // If the "close" link is clicked, close the enum editor
    // Needs live() to work also in the Create table dialog
    $("a[class='close_enum_editor']").live('click', function() {
        disable_popup();
    });

    // If the "cancel" link is clicked, close the enum editor
    // Needs live() to work also in the Create table dialog
    $("a[class='cancel_enum_editor']").live('click', function() {
        disable_popup();
    });

    // When "add a new value" is clicked, append an empty text field
    // Needs live() to work also in the Create table dialog
    $("a[class='add_value']").live('click', function() {
        $("#enum_editor #values").append("<input type='text' />");
    });

    // When the submit button is clicked, put the data back into the original form
    // Needs live() to work also in the Create table dialog
    $("#enum_editor input[type='submit']").live('click', function() {
        var value_array = new Array();
        $.each($("#enum_editor #values input"), function(index, input_element) {
            val = jQuery.trim(input_element.value);
            if(val != "") {
                value_array.push("'" + val.replace(/\\/g, '\\\\').replace(/'/g, "''") + "'");
            }
        });
        // get the Length/Values text field where this value belongs
        var values_id = $("#enum_editor input[type='hidden']").attr("value");
        $("input[id='" + values_id + "']").attr("value", value_array.join(","));
        disable_popup();
     });

    /**
     * Hides certain table structure actions, replacing them with the word "More". They are displayed
     * in a dropdown menu when the user hovers over the word "More."
     */
    // Remove the actions from the table cells (they are available by default for JavaScript-disabled browsers)
    // if the table is not a view or information_schema (otherwise there is only one action to hide and there's no point)
    if($("input[type='hidden'][name='table_type']").val() == "table") {
        var $table = $("table[id='tablestructure']");
        $table.find("td[class='browse']").remove();
        $table.find("td[class='primary']").remove();
        $table.find("td[class='unique']").remove();
        $table.find("td[class='index']").remove();
        $table.find("td[class='fulltext']").remove();
        $table.find("th[class='action']").attr("colspan", 3);

        // Display the "more" text
        $table.find("td[class='more_opts']").show();

        // Position the dropdown
        $(".structure_actions_dropdown").each(function() {
            // Optimize DOM querying
            var $this_dropdown = $(this);
             // The top offset must be set for IE even if it didn't change
            var cell_right_edge_offset = $this_dropdown.parent().offset().left + $this_dropdown.parent().innerWidth();
            var left_offset = cell_right_edge_offset - $this_dropdown.innerWidth();
            var top_offset = $this_dropdown.parent().offset().top + $this_dropdown.parent().innerHeight();
            $this_dropdown.offset({ top: top_offset, left: left_offset });
        });

        // A hack for IE6 to prevent the after_field select element from being displayed on top of the dropdown by
        // positioning an iframe directly on top of it
        var $after_field = $("select[name='after_field']");
        $("iframe[class='IE_hack']")
            .width($after_field.width())
            .height($after_field.height())
            .offset({
                top: $after_field.offset().top,
                left: $after_field.offset().left
            });

        // When "more" is hovered over, show the hidden actions
        $table.find("td[class='more_opts']")
            .mouseenter(function() {
                if($.browser.msie && $.browser.version == "6.0") {
                    $("iframe[class='IE_hack']")
                        .show()
                        .width($after_field.width()+4)
                        .height($after_field.height()+4)
                        .offset({
                            top: $after_field.offset().top,
                            left: $after_field.offset().left
                        });
                }
                $(".structure_actions_dropdown").hide(); // Hide all the other ones that may be open
                $(this).children(".structure_actions_dropdown").show();
                // Need to do this again for IE otherwise the offset is wrong
                if($.browser.msie) {
                    var left_offset_IE = $(this).offset().left + $(this).innerWidth() - $(this).children(".structure_actions_dropdown").innerWidth();
                    var top_offset_IE = $(this).offset().top + $(this).innerHeight();
                    $(this).children(".structure_actions_dropdown").offset({
                        top: top_offset_IE,
                        left: left_offset_IE });
                }
            })
            .mouseleave(function() {
                $(this).children(".structure_actions_dropdown").hide();
                if($.browser.msie && $.browser.version == "6.0") {
                    $("iframe[class='IE_hack']").hide();
                }
            });
    }
});

/* Displays tooltips */
$(document).ready(function() {
    // Hide the footnotes from the footer (which are displayed for
    // JavaScript-disabled browsers) since the tooltip is sufficient
    $(".footnotes").hide();
    $(".footnotes span").each(function() {
        $(this).children("sup").remove();
    });
    // The border and padding must be removed otherwise a thin yellow box remains visible
    $(".footnotes").css("border", "none");
    $(".footnotes").css("padding", "0px");

    // Replace the superscripts with the help icon
    $("sup[class='footnotemarker']").hide();
    $("img[class='footnotemarker']").show();

    $("img[class='footnotemarker']").each(function() {
        var span_id = $(this).attr("id");
        span_id = span_id.split("_")[1];
        var tooltip_text = $(".footnotes span[id='footnote_" + span_id + "']").html();
        $(this).qtip({
            content: tooltip_text,
            show: { delay: 0 },
            hide: { delay: 1000 },
            style: { background: '#ffffcc' }
        });
    });
});

function menuResize()
{
    var cnt = $('#topmenu');
    var wmax = cnt.innerWidth() - 5; // 5 px margin for jumping menu in Chrome
    var submenu = cnt.find('.submenu');
    var submenu_w = submenu.outerWidth(true);
    var submenu_ul = submenu.find('ul');
    var li = cnt.find('> li');
    var li2 = submenu_ul.find('li');
    var more_shown = li2.length > 0;
    var w = more_shown ? submenu_w : 0;

    // hide menu items
    var hide_start = 0;
    for (var i = 0; i < li.length-1; i++) { // li.length-1: skip .submenu element
        var el = $(li[i]);
        var el_width = el.outerWidth(true);
        el.data('width', el_width);
        w += el_width;
        if (w > wmax) {
            w -= el_width;
            if (w + submenu_w < wmax) {
                hide_start = i;
            } else {
                hide_start = i-1;
                w -= $(li[i-1]).data('width');
            }
            break;
        }
    }

    if (hide_start > 0) {
        for (var i = hide_start; i < li.length-1; i++) {
            $(li[i])[more_shown ? 'prependTo' : 'appendTo'](submenu_ul);
        }
        submenu.addClass('shown');
    } else if (more_shown) {
        w -= submenu_w;
        // nothing hidden, maybe something can be restored
        for (var i = 0; i < li2.length; i++) {
            //console.log(li2[i], submenu_w);
            w += $(li2[i]).data('width');
            // item fits or (it is the last item and it would fit if More got removed)
            if (w+submenu_w < wmax || (i == li2.length-1 && w < wmax)) {
                $(li2[i]).insertBefore(submenu);
                if (i == li2.length-1) {
                    submenu.removeClass('shown');
                }
                continue;
            }
            break;
        }
    }
    if (submenu.find('.tabactive').length) {
        submenu.addClass('active').find('> a').removeClass('tab').addClass('tabactive');
    } else {
        submenu.removeClass('active').find('> a').addClass('tab').removeClass('tabactive');
    }
}

$(function() {
    var topmenu = $('#topmenu');
    if (topmenu.length == 0) {
        return;
    }
    // create submenu container
    var link = $('<a />', {href: '#', 'class': 'tab'})
        .text(PMA_messages['strMore'])
        .click(function(e) {
            e.preventDefault();
        });
    var img = topmenu.find('li:first-child img');
    if (img.length) {
        img.clone().attr('src', img.attr('src').replace(/\/[^\/]+$/, '/b_more.png')).prependTo(link);
    }
    var submenu = $('<li />', {'class': 'submenu'})
        .append(link)
        .append($('<ul />'))
        .mouseenter(function() {
            if ($(this).find('ul .tabactive').length == 0) {
                $(this).addClass('submenuhover').find('> a').addClass('tabactive');
            }
        })
        .mouseleave(function() {
            if ($(this).find('ul .tabactive').length == 0) {
                $(this).removeClass('submenuhover').find('> a').removeClass('tabactive');
            }
        });
    topmenu.append(submenu);

    // populate submenu and register resize event
    $(window).resize(menuResize);
    menuResize();
});

/**
 * For the checkboxes in browse mode, handles the shift/click (only works
 * in horizontal mode) and propagates the click to the "companion" checkbox
 * (in both horizontal and vertical). Works also for pages reached via AJAX.
 */
$(document).ready(function() {
    $('.multi_checkbox').live('click',function(e) {
        var current_checkbox_id = this.id;
        var left_checkbox_id = current_checkbox_id.replace('_right', '_left');
        var right_checkbox_id = current_checkbox_id.replace('_left', '_right');
        var other_checkbox_id = '';
        if (current_checkbox_id == left_checkbox_id) {
            other_checkbox_id = right_checkbox_id;
        } else {
            other_checkbox_id = left_checkbox_id;
        }

        var $current_checkbox = $('#' + current_checkbox_id);
        var $other_checkbox = $('#' + other_checkbox_id);

        if (e.shiftKey) {
            var index_of_current_checkbox = $('.multi_checkbox').index($current_checkbox);
            var $last_checkbox = $('.multi_checkbox').filter('.last_clicked');
            var index_of_last_click = $('.multi_checkbox').index($last_checkbox);
            $('.multi_checkbox')
                .filter(function(index) {
                    // the first clicked row can be on a row above or below the
                    // shift-clicked row
                    return (index_of_current_checkbox > index_of_last_click && index > index_of_last_click && index < index_of_current_checkbox)
                     || (index_of_last_click > index_of_current_checkbox && index < index_of_last_click && index > index_of_current_checkbox);
                })
                .each(function(index) {
                    var $intermediate_checkbox = $(this);
                    if ($current_checkbox.is(':checked')) {
                        $intermediate_checkbox.attr('checked', true);
                    } else {
                        $intermediate_checkbox.attr('checked', false);
                    }
                });
        }

        $('.multi_checkbox').removeClass('last_clicked');
        $current_checkbox.addClass('last_clicked');

        // When there is a checkbox on both ends of the row, propagate the
        // click on one of them to the other one.
        // (the default action has not been prevented so if we have
        // just clicked, this "if" is true)
        if ($current_checkbox.is(':checked')) {
            $other_checkbox.attr('checked', true);
        } else {
            $other_checkbox.attr('checked', false);
        }
    });
}) // end of $(document).ready() for multi checkbox

/**
 * Get the row number from the classlist (for example, row_1)
 */
function PMA_getRowNumber(classlist) {
    return parseInt(classlist.split(/row_/)[1]);
}

/**
 * Changes status of slider
 */
function PMA_set_status_label(id) {
    if ($('#' + id).css('display') == 'none') {
        $('#anchor_status_' + id).text('+ ');
    } else {
        $('#anchor_status_' + id).text('- ');
    }
}

/**
 * Initializes slider effect.
 */
function PMA_init_slider() {
    $('.pma_auto_slider').each(function(idx, e) {
        if ($(e).hasClass('slider_init_done')) return;
        $(e).addClass('slider_init_done');
        $('<span id="anchor_status_' + e.id + '"></span>')
            .insertBefore(e);
        PMA_set_status_label(e.id);

        $('<a href="#' + e.id + '" id="anchor_' + e.id + '">' + e.title + '</a>')
            .insertBefore(e)
            .click(function() {
                $('#' + e.id).toggle('clip', function() {
                    PMA_set_status_label(e.id);
                });
                return false;
            });
    });
}

/**
 * Vertical pointer
 */
$(document).ready(function() {
    $('.vpointer').live('hover',
        //handlerInOut
        function(e) {
        var $this_td = $(this);
        var row_num = PMA_getRowNumber($this_td.attr('class'));
        // for all td of the same vertical row, toggle hover
        $('.vpointer').filter('.row_' + row_num).toggleClass('hover');
        }
        );
}) // end of $(document).ready() for vertical pointer

$(document).ready(function() {
    /**
     * Vertical marker
     */
    $('.vmarker').live('click', function(e) {
        var $this_td = $(this);
        var row_num = PMA_getRowNumber($this_td.attr('class'));
        // for all td of the same vertical row, toggle the marked class
        $('.vmarker').filter('.row_' + row_num).toggleClass('marked');
        });

    /**
     * Reveal visual builder anchor
     */

    $('#visual_builder_anchor').show();

    /**
     * Page selector in db Structure (non-AJAX)
     */
    $('#tableslistcontainer').find('#pageselector').live('change', function() {
        $(this).parent("form").submit();
    });

    /**
     * Page selector in navi panel (non-AJAX)
     */
    $('#navidbpageselector').find('#pageselector').live('change', function() {
        $(this).parent("form").submit();
    });

    /**
     * Page selector in browse_foreigners windows (non-AJAX)
     */
    $('#body_browse_foreigners').find('#pageselector').live('change', function() {
        $(this).closest("form").submit();
    });

    /**
     * Load version information asynchronously.
     */
    if ($('.jsversioncheck').length > 0) {
        (function() {
            var s = document.createElement('script');
            s.type = 'text/javascript';
            s.async = true;
            s.src = 'http://www.phpmyadmin.net/home_page/version.js';
            s.onload = PMA_current_version;
            var x = document.getElementsByTagName('script')[0];
            x.parentNode.insertBefore(s, x);
        })();
    }

    /**
     * Slider effect.
     */
    PMA_init_slider();

    /**
     * Enables the text generated by PMA_linkOrButton() to be clickable
     */
    $('.clickprevimage')
        .css('color', function(index) {
            return $('a').css('color');
        })
        .css('cursor', function(index) {
            return $('a').css('cursor');
        }) //todo: hover effect
        .live('click',function(e) {
            $this_span = $(this);
            if ($this_span.closest('td').is('.inline_edit_anchor')) {
            // this would bind a second click event to the inline edit
            // anchor and would disturb its behavior
            } else {
                $this_span.parent().find('input:image').click();
            }
        });

}) // end of $(document).ready()

/**
 * HTML escaping
 */
function escapeHtml(unsafe) {
    return unsafe
        .replace(/&/g, "&amp;")
        .replace(/</g, "&lt;")
        .replace(/>/g, "&gt;")
        .replace(/"/g, "&quot;")
        .replace(/'/g, "&#039;");
}
