function setbox_handler(name, minx, miny, maxx, maxy) {</SCRIPT>
alert(name + " " + minx + " " + miny + " " + maxx + " " + maxy);
}
function mousemove_handler(name, x, y) {
document.form1.coord.value= "x=" + x + " y=" + y;
}
function seterror_handler(message) { alert(message); }
function reset_handler(name, minx, miny, maxx, maxy) { }
<FORM name="form1"></BODY>
Screen Coordinates: <INPUT size="24" type="text" name="coord">
</FORM>