function validate(theForm)
{
	if (theForm.yourname.value == "")
	{
	alert("Please enter your name");
	return false;
	}
	
	if (theForm.yourtel.value == "")
	{
	alert("Please enter your telephone number");
	return false;
	}
	
	if (theForm.youremail.value == "")
	{
	alert("Please enter your email");
	return false;
	}
}