mini "slideshow" optimieren - jetzt mit OOP und closures

[jobo]

Hallo,

mit Hilfe von Mathias Schäfers Beitrag zu closures (habs nicht ganz kapiert, aber nachgebaut):

  
window.onload = function () {  
	layer2 = new divChange("layer2");  
	setTimeout ("layer2.changeZindex()",1000);  
	layer3 = new divChange("layer3");  
	setTimeout ("layer3.changeZindex()",2000);  
	layer1 = new divChange("layer1");  
	setTimeout ("layer1.changeZindex()",3000);  
}  
  
function divChange(masterDivId) {  
	var thisObject = this;  
	var masterDiv = document.getElementById(masterDivId);  
	this.timeInterval = 3000;  
	this.containedDivs = masterDiv.getElementsByTagName("div");  
	this.count = 0;  
	zIndex = 10;  
	this.changeZindex = function () {  
		if (thisObject.count == thisObject.containedDivs.length)  {  
			thisObject.count = 0;  
		}	  
		zIndex += 1;  
		thisObject.containedDivs[thisObject.count].style.zIndex = zIndex;  
		thisObject.count++;  
		window.setTimeout(thisObject.changeZindex,thisObject.timeInterval);  
	}  
}  

Gruß

jobo