var hints = new Array("","","","");


buttonSet = "";
buttonNumber = "";

if (document.images) {
	var imgAn=new Array(new Image(),new Image(),new Image());
	var imgAus=new Array(new Image(),new Image(),new Image());
	var imgSet=new Array(new Image(),new Image(),new Image());
	
	
	
	imgAn[1].src="http://www.luebecker-bauverein.de/img/links-pfeil2.gif"; 
	imgAus[1].src="http://www.luebecker-bauverein.de/img/links-pfeil1.gif";
	imgSet[1].src="http://www.luebecker-bauverein.de/img/links-pfeil2.gif";
	
	imgAn[2].src="http://www.luebecker-bauverein.de/img/rechts-pfeil2.gif"; 
	imgAus[2].src="http://www.luebecker-bauverein.de/img/rechts-pfeil1.gif";
	imgSet[2].src="http://www.luebecker-bauverein.de/img/rechts-pfeil2.gif";
	}

function an(number) {
help = "pos"+number;
if  (!(help == buttonSet)){
		if (document.images) {
			document.images["pos"+number].src = imgAn[number].src;
		}		
		window.status=hints[number];
		}
		return true;	
	}
function aus(number) {
help = "pos"+number;
if  (!(help == buttonSet)){
        if (document.images) {
		document.images["pos"+number].src = imgAus[number].src;
		}
		window.status="";
		}
		return true;	
	}
function set(number) {
help = "pos"+number;

if  (!(help == buttonSet)){
if (document.images) {
document.images["pos"+number].src = imgSet[number].src;
if (buttonSet!="")
document.images[buttonSet].src = imgAus[buttonNumber].src;
}	
buttonSet = "pos" + number;	
buttonNumber = number;
	}
	}