var lastActivated ="";

function preload(imgObj, imgSrc){
	eval(imgObj+' = new Image()');
	eval(imgObj+'.src = "'+imgSrc+'"');
}

function img_act(object){
	imgOn = eval(object+"1.src");
	document.images['img_'+object].src=imgOn;
}

function img_inact(object){
	imgOn = eval(object+"0.src");
	document.images['img_'+object].src=imgOn;
}

function actImages(object){
	if(lastActivated){
		img_inact(lastActivated);
	}
	img_act(object);
	lastActivated = object;
}

function swapImages(object,status){
	if(status == 1){
		img_act(object);
	}else if(object != lastActivated){
		img_inact(object);
	}
	return false;
}

preload("01buttom0","images/homepage/nav/01_wirueberuns01.gif");
preload("01button1","images/homepage/nav/01_wirueberuns02.gif");