//pagina de contact.asp
function validForm(){
		var contactform = document.contactus;
		var re = /^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,4})+$/

			if (contactform.nname.value == "")
			{
				alert("Please enter your First Name.");
				contactform.nname.focus();
				return false;
			}
			else
			{
				if (contactform.nlastname.value == "")
				{
					alert("Please enter your Last Name.");
					contactform.nlastname.focus();
					return false;
				}
				else
				{
					if (contactform.nemail.value == "")
					{
						alert("Please enter your Email.");
						contactform.nemail.focus();
						return false;
					}
					else
					{
					   if (contactform.selsubject.selectedIndex == 0)
					   {
						  alert("Please enter Subject.");
						  contactform.selsubject.focus();
						  return false;
					   }
					   else
					   {
					   
					       if (re.test(contactform.nemail.value))
						   {
						      if (contactform.strCAPTCHA.value == "")
                              {
							     alert("Please enter the verification code.");
                                 contactform.strCAPTCHA.focus();
								 return false;
							  }
							  return true;
						   }
						   else
						   {
							  alert("Email Address appears to be invalid.");
							  contactform.nemail.focus();
							  contactform.nemail.select();
							  return false;
						   }
                       }
					}
				}
			}
}