Javascript validation on product info page - is my JS right ?

[FuzzyJared]

I am trying to do some javascript form validation on the product info page. Basically my product has several lines of customization available for it, as well as font-choices for those lines.

The problem that I am having is trying to get the validation to work with form id's like attrib-5-1. Does anyone know if you can get javascript to work with id's like this?

What I am trying to do is write a validation script similar to this. With the exception that customizationone would be the id attrib-5-1 and the fontone would be attrib-23.

submit onclick="return checkCustomization(this.form)"

function checkCustomization(order_form) {
	var error = "";
	if (document.forms.order_form.customizationone.value != "") {
          //check if they selected the font for this customization
          if (document.forms.order_form.fontone.value == "") {
              why = "You did not choose a font for Customization Line 1";
          }
       }
	
	
	if (why != "") {
	   alert(why);
	   return false;
	}else{
		return true;
	}
}