function validateForm(emailForm)
	{
		browserVer = parseInt(navigator.appVersion);
							
		if (browserVer >= 4)
		{
			if (emailForm.sender_name.value.length == 0 || emailForm.sender_name.value == " ")
			{
			  alert("Please enter your \"Name\".");
			  emailForm.sender_name.focus();
			  return (false);
			}
	
			if (emailForm.sender_address.value.length == 0 || emailForm.sender_address.value == " ")
			{
			  alert("Please enter your \"Email Address\".");
			  emailForm.sender_address.focus();
			  return (false);
			}
	
			if (emailForm.sender_message.value.length == 0 || emailForm.sender_message.value == " ")
			{
			  alert("Please enter your e-mail \"Message\".");
			  emailForm.sender_message.focus();
			  return (false);
			}
		}
	}