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<script type="text/javascript">
	function validateForm (submit) { 

		var errmsg = "Oops, you're required to complete the following fields! \n";

		if (submit.email.value.search(/^\w+((-\w+)|(\.\w+))*\@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+$/) == -1) {
			errmsg = errmsg + " - Valid email\n";
		}

		//Validate other form fields, etc, etc.
		if (submit.name.value=="") {
			errmsg = errmsg + " - Full Name\n";
		}

		//alert if fields are empty and cancel form submit
		if (errmsg == "Oops, you're required to complete the following fields! \n") {
			sub.submit();
		} else {
			alert(errmsg);
			return false;
		}
	};
</script>