function validate_contact_form()
{
	bol_submit = true;
	err_msg = "Please check the following:\n";
	this_form = window.document.contact_form;
	
	if ((this_form.cf_name.value == "") || (this_form.cf_name.value == "Name"))
	{
		bol_submit = false;
		err_msg = err_msg + "Name\n";
	}
	
	if ((this_form.cf_email.value == "") || (this_form.cf_email.value == "Email"))
	{
		bol_submit = false;
		err_msg = err_msg + "Email\n";
	}
	
	if ((this_form.cf_tel.value == "") || (this_form.cf_tel.value == "Telephone number"))
	{
		bol_submit = false;
		err_msg = err_msg + "Telephone number\n";
	}
	
	if (bol_submit)
	{
		return true;
	}
	else
	{
		alert(err_msg);
		return false;
	}
}