Client Side Validation on ecart checkout button

I really need to get this going. Is there any reason why the form fields validation doesn't work on an add to cart form when there is another form on the page with a show cart form?
Mine doesn't work at
factory-spa-covers-detail-shape2-step.php?ItemsID=1&ItemColor=9&shapeID=2&ItemCatID=19

client side validation will not work with an add to cart button that is set to look up the item from a recordset.

client validation will only work with a static add to cart button.


the problem with an add to cart button that is set to lookup the item from a recordset is that the form name is dynamic.


if you view source of your page in the browser, the form element code looks like:

<form action="/factory-spa-covers-detail-shape2-step.php?ItemsID=1&ItemColor=9&shapeID=2&ItemCatID=19" method="POST" name="eCart1_1_ATC_1" onsubmit="WAValidateRQ(document.eCart1_1_ATC_.eCart1_1_MeasureB_Add,'-Measurement B is required',document.eCart1_1_ATC_.eCart1_1_MeasureB_Add,0,false,'text');WAValidateRQ(document.eCart1_1_ATC_.eCart1_1_MeasureA_Add,'-Measurement A is required',document.eCart1_1_ATC_.eCart1_1_MeasureA_Add,0,false,'text');WAValidateRQ(document.eCart1_1_ATC_.eCart1_1_Skirt_Add,'-Skirt Length is required',document.eCart1_1_ATC_.eCart1_1_Skirt_Add,0,false,'text');WAAlertErrors('The following errors were found','Correct invalid entries to continue',true,false);return document.MM_returnValue">


the code that looks for the element name:
document.eCart1_1_ATC_.eCart1_1_MeasureB_Add

has the form name wrong. the name is:
name="eCart1_1_ATC_1"

so that code needs to be adjusted to:
document.eCart1_1_ATC_1.eCart1_1_MeasureB_Add

Thanks for the follow up. So, it isn't possible to validate the fields in the dynamic form?

no, not without modifying the code by hand.