var beginposX = -735;
var beginposY = -825;

var positionCounter = 0;
var direction = 0;

function getMousePos() {
	var posx = 0;
	var posy = 0;
	if (!e) var e = window.event;
	if (e.pageX || e.pageY)
	{
		posx = e.pageX;
		posy = e.pageY;
	}
	else if (e.clientX || e.clientY)
	{
		posx = e.clientX + document.body.scrollLeft;
		posy = e.clientY + document.body.scrollTop;
	}
	return [posx, posy];
}

function doScroll (objid) {
	var obj = document.getElementById(objid);
	if (direction==0 && positionCounter>720) {
		direction = 1;
	} else if (direction == 1 && positionCounter<=0) {
		direction = 0;
	}
	if (direction==0) {
		positionCounter++;
		var posY; var posX;
		//var posY = 8*Math.sin(positionCounter);
		//var posX = Math.sin(positionCounter);
		obj.style.top = beginposY+positionCounter + "px";
		obj.style.left = beginposX+positionCounter + "px";
		setTimeout('doScroll(\''+objid+'\')',100);
	} else {
		positionCounter--;
		var posY; var posX;
		//var posY = 8*Math.sin(positionCounter);
		//var posX = Math.sin(positionCounter);
		obj.style.top = beginposY+positionCounter + "px";
		obj.style.left = beginposX+positionCounter + "px";
		setTimeout('doScroll(\''+objid+'\')',100);
	}
}