// form validation
	function checkForm(){
		//function that checks the validity of the form
		//checks for empty required fields and if the emails equal
		var bolOK = true;		
		if(bolOK)
		{
			bolOK = notEmpty('custom','DVDOrder','FirstName','Please enter the First Name.','LastName','Please enter the Last Name.','Address','Please enter your address.','City','Please enter your city.');
		}
		if(bolOK)
		{
			if(document.DVDOrder.State[document.DVDOrder.State.selectedIndex].value == '')
			{
				bolOK=false;
				alert("Please choose a State.");
				eval("document.DVDOrder.State.focus();");
			}

		}
		if(bolOK)
		{
			bolOK=notEmpty('custom','DVDOrder', 'ZipCode', 'A zip code is required.', 'PhoneNumber', 'A phone number is required.','Email','Your email is required.');
		}
		if(bolOK){
			var val= eval("document.DVDOrder.PhoneNumber.value");
		
			bolOK = validateTelnr(val);
			
			if(bolOK == false)
			{
				eval("document.DVDOrder.PhoneNumber.focus();");
			}
		}
		if(bolOK){
			var val= eval("document.DVDOrder.Email.value");
		
			bolOK = checkEmail(val);
			
			if(bolOK == false)
			{
				eval("document.DVDOrder.Email.focus();");
			}
		}
		if(bolOK)
		{
			 FreezeScreen('Your submission is processing. We appreciate your patience.');
		}
		return bolOK;
	}