<!--
function isEmail(Element){
	var filter  = /^[_a-z0-9-]+(\.[_a-z0-9-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)+$/i;
    if (filter.test(Element.value))
    {
        return true;
		//return "";
    }else {
        return false;
		//return returnWarning(str);
	}
}