N = (document.all) ? 0 : 1;
var ob;
var over = false;

function MD(e) {
	if (over){
		if (N) {
			ob = document.getElementById("panel");
			X=e.layerX;
			Y=e.layerY;
			return false;
		}else{
			ob = document.getElementById("panel");
			ob = ob.style;
			X=event.offsetX;
			Y=event.offsetY;
		}
	}
}

function MM(e) {
	if (ob) {
		if (N) {
			ob.style.top = e.pageY-Y;
			ob.style.left = e.pageX-X;
		}else {
			ob.pixelLeft = event.clientX-X + document.body.scrollLeft;
			ob.pixelTop = event.clientY-Y + document.body.scrollTop;
			return false;
		}
	}
}

function MU() {	ob = null;}

if (N) { document.captureEvents(Event.MOUSEDOWN | Event.MOUSEMOVE | Event.MOUSEUP);}

document.onmousedown = MD;
document.onmousemove = MM;
document.onmouseup = MU;