jQuery Forum

I want to validate a form and highlight the field which is empty or incorrect. 

when I find a bad value or a pattern mismatch  I run:

$("#inputID").addClass("required");   // applying red bg

On desktop works fine but on my Iphone 3G (OS v 3.1.3) nothing happens.

// using jQuery 1.7.1 and  jQueryMobile 1.1.0 RC1

Thanks,

Silviu