function validate_form() {

	if ( document.contact.name.value == "" ) {
	alert ("Please enter your name.");
	document.contact.name.select();
	document.contact.name.focus();
	return false;
	}
	
	if ( document.contact.email.value == "" ) {
	alert ("Please enter your email.");
	document.contact.email.select();
	document.contact.email.focus();
	return false;
	}
	
	if ( document.contact.phone.value == "" ) {
	alert ("Please enter your subject.");
	document.contact.phone.select();
	document.contact.phone.focus();
	return false;
	}
	
	if ( document.contact.message.value == "" ) {
	alert ("Please enter your smessage.");
	document.contact.message.select();
	document.contact.message.focus();
	return false;
	}
}