function map(){
	mx = parseInt(Math.abs(window.event.x + document.body.scrollLeft));
	my = parseInt(Math.abs(window.event.y + document.body.scrollTop));
	mx -= 345;
	mx = Math.floor(mx/8);
	my -= 320;
	my = Math.floor(my/8);
	window.location="screen.php?x=" + mx + "&y=" + my;
};