function checkEmail(str) 
{
   var reg = /^([A-Za-z0-9_\-\.])+\@([A-Za-z0-9_\-\.])+\.([A-Za-z]{2,4})$/;
   var address = str;
   if(reg.test(address) == false) 
   {
      alert('Invalid Email Address');
      return false;
   }
  return true					
}

function validateForm()
{
	if(document.EnquiryForm.name.value == "")
	{
		window.alert("please fill in your name");
		return false;
	}else if(document.EnquiryForm.email.value == "")
	{
		window.alert("please fill in your email");
		return false;
	}
	else if(document.EnquiryForm.query.value == "")
	{
		window.alert("please fill in your query");
		return false;
	}
	
	return checkEmail(document.EnquiryForm.email.value);
}