jQuery(function() {
	$("#commentform").bind("submit",function() {
		if ($("#author").val() == "" || $("#author").val() == "Name:") {
			alert("Please enter your name.");
			return false;
		}
		if ($("#email").val() == "" || $("#email").val() == "Email Address:") {
			alert("Please enter your email.");
			return false;
		}
		if (checkemail($("#email").val())==false) {
			alert("Please enter a valid email address.");
			return false;
		}
		if ($("#comment").val() == "" ) {
			alert("Please enter a comment.");
			return false;
		}
		if ($("#url").val() == "URL:") {
			$("#url").val("");
		}
	}); 
});


//Advanced Email Check credit-
//By JavaScript Kit (http://www.javascriptkit.com)
//Over 200+ free scripts here!

function checkemail(emailaddr){
	var testresults;
	var filter=/^([\w-]+(?:\.[\w-]+)*)@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$/i;
	if (filter.test(emailaddr))
		return true;
	else{
		return false;
	}
}