try using !== instead of != as this checks also against the variable type.
you can also try
if ( typeof myvar ==='undefined'){
//error
}
On Thu, Jan 8, 2009 at 10:25 PM, Chuk <violinssoundc...@gmail.com> wrote:
>
> Hi. I have a form with a disabled submit button when the page is
> loaded. I'm trying to activate that submit button only when two text
> fields(ids="equipmentNumber" and "description") and three select boxes
> (ids="type","department"," and "location") contain a value. Here is
> my current code:
>
> if ($('#equipmentNumber').val() != null && $('#description').val() !=
> null && $('#type').val() != null && $('#department') != null && $
> ('#location').val() != null)
> {
> $('#submit').attr("disabled",false);
> }
>
> However, this condition is always true...even if each field is blank.
> Does anyone see right off where I've messed up?
