jQuery method live removed from version 1.9 upward

Very comfortable method live has been removed in jQuery versions 1.9 and higher. So, if you use the function in system where jQuery is in version 1.7 or will be automatically upgraded from version 1.7 or lover, there can occur some problems.

To fix the issue you would need to replace something like that:

$("testButton").live("click", function(){
$(".hiddentext").show();
});

//with method "on":

$("testButton").on("click", function(){
$(".hiddentext").show();
});