function checkEnqForm() {

	var d = document.enq_form;

	if(d.stag_name1.value=="")
	{
		window.alert("Type your name, please!");
		d.stag_name1.focus();
		return false;
	}

	if(d.stag_name2.value=="")
	{
		window.alert("Type your surname, please!");
		d.stag_name2.focus();
		return false;
	}

	if(d.stag_phone.value=="")
	{
		window.alert("Please enter your contact telephone number!");
		d.stag_phone.focus();
		return false;
	}
}