jQuery works on jsFiddle doesn't work on wesite -

i have jquery script works in jsfiddle, doesn't work on actual website , cannot think of more do.

here fiddle

and here website

i need checkbox when clicked in turn check number of other checkboxes.

$("form input[id='selectall']").click(function () {     var inputs = $("form input[class='produse4export']");     (var = 0; < inputs.length; i++) {         if (this.checked) {             inputs[i].checked = true;             checkme();         } else {             inputs[i].checked = false;             uncheckme();         }     } }); 

when these checkboxes checked (all @ once), have enable other checkboxes. when unchecked rest of checkboxes have again disabled , unchecked (if checked).

kinda hard explain, both fiddle , webpage easy read. why doesn't work expected?

in fiddle, binding event on page load. on page, attempting while parsing page itself.

on page, change event handler binding code to:

$(document).ready(function() {     $("form input[id='selectall']").click(function () {         ...     }); });