function checkform ( form ) {
	if (form.name.value == "") {
		alert( "Please enter your name." );
		form.name.focus();
		return false ;
	}
	
	if (form.location.value == "") {
		alert( "Please enter your location." );
		form.location.focus();
		return false ;
	}
	
	if (form.email.value == "") {
		alert( "Please enter your email." );
		form.email.focus();
		return false ;
	}
	
	if (form.subject.value == "") {
		alert( "Please enter your subject." );
		form.subject.focus();
		return false ;
	}
	
	if (form.message.value == "") {
		alert( "Please enter your message." );
		form.message.focus();
		return false ;
	}

	return true ;
}