function checkForm()
{
	if (document.form1.first_name.value == "") {
		document.form1.first_name.focus();
		alert("Please enter your first name.");
		return false;
	}
	if (document.form1.email.value == "") {
		document.form1.email.focus();
		alert("Please enter your email address.");
		return false;
	}	
	if (document.form1.zip.value == "") {
		document.form1.zip.focus();
		alert("Please enter your zip code.");
		return false;
	}
	if (document.form1.make.value == "") {
		document.form1.make.focus();
		alert("Please enter your Vehicle Make.");
		return false;
	}
	if (document.form1.model.value == "") {
		document.form1.model.focus();
		alert("Please enter your Vehicle Model.");
		return false;
	}
	if (document.form1.Model_Year.value == "") {
		document.form1.Model_Year.focus();
		alert("Please enter the Year of your Vehicle.");
		return false;
	}
return true;
}