function isEmail (s) {
	if (isEmpty(s)) 
		if (isEmail.arguments.length == 1) return false;
		else return (isEmail.arguments[1] == true);

	if (isWhitespace(s)) return false;

	var i = 1;
	var sLength = s.length;

	while ((i < sLength) && (s.charAt(i) != "@")) {
		i++
	}

	if ((i >= sLength) || (s.charAt(i) != "@")) return false;
	else i += 2;

	while ((i < sLength) && (s.charAt(i) != ".")) {
		i++
	}

	if ((i >= sLength - 1) || (s.charAt(i) != ".")) return false;
	else return true;
}

function isEmpty(s) {
	return ((s == null) || (s.length == 0));
}

var whitespace = " \t\n\r";
function isWhitespace (s) {
	var i;
	if (isEmpty(s)) return true;
	for (i = 0; i < s.length; i++){
		var c = s.charAt(i);
		if (whitespace.indexOf(c) == -1) return false;
	}
	return true;
}

function validateForm(form) {
	if ( isWhitespace(form.elements["name"].value) ) {
		alert("Please enter your name!");
		form.elements["name"].focus();
		return;
	}


	if (isWhitespace(form.elements["phone"].value) ) {
		alert("Please enter your contact phone!");
		form.elements["phone"].focus();
		return;
	}

	if ( isWhitespace(form.elements["email"].value) ) {
		alert("Please enter your contact email!");
		form.elements["email"].focus();
		return;
	}

	form.action="sendeaile_vioxx.php";
	form.submit();
}