Passing value from code-behind to Javascript

Question

I am using a jQueryUI ProgressBar to show users how much allowed file storage they have used. The percentage is calculated in code-behind and should be passed to Javascript.

Answer 1

.net will modify the id you give a control to ensure it is unique, so you are not accessing it with the correct id. If you give the hidden field a unique class name, you can access the value that way:

 
var pct = $('.hiddenClass').val();