Check drop down form

[veroaero]

Hi!

I need some help for a smart way of checking that the drop down form was used and a value was chosen. I know that I can check this with $_POST variables afterwards but the question is, can I do it before the actual Submit button is hit?

Something like this: The submit button is not visible until the dropdown form has been used?

Or is this a stupid thing to do?

[ToonMariner]

You need javscript for that.

on your <select ... you should add the onChange="" attribute and point it to a suitable js function to do the checking.

Google for js scripts there will be plenty for this.

[veroaero]

Ok, thanks!