toggle.js
var $jq = jQuery.noConflict();
$jq(document).ready(function(){
$jq('.isAdd').hide();
$jq("#Add_category").change(function(){
var value = $jq("#Add_category option:checked").val();
var theDiv = $jq(".isAdd");
theDiv.slideToggle("slow");
});
});
In console I had:
Uncaught SyntaxError: Unexpected token ILLEGAL
For Firefox it's works fine, but not for Chrome and Chromium for Ubuntu.