function CheckContactForm()
{
	var reg = /^[\w-]+(\.[\w-]+)*@[\w-]+(\.[\w-]+)+$/;   
	var success=reg.test(document.contactForm.Email.value);

	var JsAlertTextObj = document.getElementById("contactusJs");

	if(document.contactForm.FirstName.value == "")
	{
		alert(JsAlertTextObj.attributes['firstnameempty'].nodeValue);
		return false;
	}
	if(document.contactForm.LastName.value == "")
	{
		alert(JsAlertTextObj.attributes['lastnameempty'].nodeValue);
		return false;
	}
	if(document.contactForm.Email.value == "")
	{
		alert(JsAlertTextObj.attributes['emailempty'].nodeValue);
		return false;
	}
	if(!success)
	{
		alert(JsAlertTextObj.attributes['emailinvalid'].nodeValue);
		return false;
	}
	if(document.contactForm.Subject.value == "")
	{
		alert(JsAlertTextObj.attributes['subjectempty'].nodeValue);
		return false;
	}
	if(document.contactForm.Message.value == "")
	{
		alert(JsAlertTextObj.attributes['messageempty'].nodeValue);
		return false;
	}
	if(document.contactForm.authCode.value == "")
	{
		alert(JsAlertTextObj.attributes['verifycodeempty'].nodeValue);
		return false;
	}
	return true;
}