function ValidateForm(prForm)
    {
		if (prForm.Name.value == "")
        {
                alert("Please enter your Name.")
                prForm.Name.focus();
                return false;
        }
    
        if (prForm.Surname.value == "")
        {
                alert("Please enter your Surname.")
                prForm.Surname.focus();
                return false;
        }
		
        if (prForm.Telephone.value == "")
        {
                alert("Please enter your Telephone Number.");
                prForm.Telephone.focus();
                return(false);
        }
		
        if (!JS_IsEmail(prForm.Email.value))
        {
                alert("Please enter a valid Email Address.");
                prForm.Email.focus();
                return(false);
        }
		
        if (prForm.Comment.value == "")
        {
                alert("Please enter your Comment.");
                prForm.Comment.focus();
                return(false);
        }
	
	return true;    
	}