Validating Dynamic Form

[simon622]

Any help would be appreciated. I am building a form whose contents are within a database. Therefore the number of elements changes every time. I would like to validate choice on client side using js. However becuase there are a different number of form elements every time, I can't write static code to validate them. The elements are checkboxes. I can't use the form array object because, the names of the elements are actually arrays themselves, using PHP e.g <input type=checkbox name=quantity[] value=2>. The element name is an array because thats how I'm using the data within the backend, and user can select more than one checkbox of the same name!
Basically how do I reference these form elements for js validation?

Cheers Si.

[Weedpacket]

You could write dynamic code... 😉

I mean it. Have PHP write the Javascript form validation function to match the form it's validating.

And yes, you can refer to form fields that have '[]' in their name in Javascript I've been told something like (though don't quote me, 'cos that ain't DOM1-standard):

box=document.FormName.elements['varname[]'];
box[i].checked=false;

would work.

[simon622]

Cheers Pal,

its done the job. I didnt know about that element array.

Life saver.

Thanks again!