[kh99]

Well the "Array.prototype.contains = function (ele)..." from the original code adds a function to the javascript 'Array' class so that later you can do something like

PHP Code:

var x = new Array();
...
if (x.contains('foo'))
{ 


to check if the array contains the value 'foo'. But adding the functions to the class was causing the problem because of the use of for..in loops by the code that builds the editor menus (see the link I posted above). So I changed it to

PHP Code:

function contains(a, ele)...

var x = new Array();
...
if (contains(x, 'foo'))
{ 


which does the same thing by adding a parameter to a normal function instead of adding a function to the class.

Hopefully this makes some sense.