use array to define included JavaScript libraries

import.php

@@ -10,7 +10,7 @@
  * Get the variables sent or posted to this script and a core script
  */
 require_once './libraries/common.inc.php';
-$js_to_run = 'functions.js';
+$GLOBALS['js_include'][] = 'functions.js';
 
 // default values
 $GLOBALS['reload'] = false;