function ValidateContactForm()
{
    var name = document.ContactForm.name;
	var address = document.ContactForm.address;
	var phone = document.ContactForm.phone;
	var email = document.ContactForm.email;
    var query = document.ContactForm.query;
	

    if (name.value == "")
    {
        window.alert("Please enter your name.");
        name.focus();
        return false;
    }
	  if (address.value == "")
    {
        window.alert("Please enter your address.");
        address.focus();
        return false;
    }
	
	 if ((phone.checked == false) && (phone.value == ""))
    {
        window.alert("Please enter your phone number.");
        phone.focus();
        return false;
    }
     
	 if (email.value == "")
    {
        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;
    }
	
    if (email.value.indexOf(".", 0) < 0)
    {
        window.alert("Please enter a valid e-mail address.");
        email.focus();
        return false;
    }

     
 
    if (query.value == "")
    {
        window.alert("Please provide a detailed description or query.");
        query.focus();
        return false;
    }
    return true;
}