function map(event){
	if(navigator.appName == "Netscape"){
		x = event.pageX;
		y = event.pageY;
	}
	else{
		x = event.x;
		y = event.y;
	}
	x -= 343;
	x = Math.floor(x/8);
	y -= 288;
	y = Math.floor(y/8);
	window.location = "screen.php?x=" + x + "&y=" + y;
}