function ValidateContactForm()
{
    var firstname = document.ContactForm.FirstName;
	var name = document.ContactForm.LastName;
    var email = document.ContactForm.Email;
	
    if (firstname.value == "")
    {
        window.alert("Please enter your first name.");
        firstname.focus();
        return false;
    }
	
	    if (name.value == "")
    {
        window.alert("Please enter your last name.");
        name.focus();
        return false;
    }
	
    if (email.value == "")
    {
        window.alert("Please enter an e-mail address.");
        email.focus();
        return false;
    }
    if (email.value.indexOf("@", 0) < 0)
    {
        window.alert("Please enter a valid e-mail address.");
        email.focus();
        return false;
    }
    if (email.value.indexOf(".", 0) < 0)
    {
        window.alert("Please enter a valid e-mail address.");
        email.focus();
        return false;
    }

    return true;
}