browser = (((navigator.appName == "Netscape") && (parseInt(navigator.appVersion) >= 3 )) || ((navigator.appName == "Microsoft Internet Explorer") && (parseInt(navigator.appVersion) >= 4 )));
dhtml = (((navigator.appName == "Netscape") && (parseInt(navigator.appVersion) >= 4 )) || ((navigator.appName == "Microsoft Internet Explorer") && (parseInt(navigator.appVersion) >= 4 )))


var position="home";

function setup(){
    Bild = new Image();
    if(browser){
        anzBild=document.images.length

        for(n=1;n<anzBild;n++){
            bildName=document.images[n].src;
            pos=bildName.indexOf("_pas.gif")

            if(pos!=-1){
            	Bild[n]=new Image();
            	Bild[n].src=bildName.substring(0,pos)+"_act.gif";
}}}}



function mOver(a){
    if(browser){
        if(a != position){
            bildSrc = document.images[a].src;
            document.images[a].src = bildSrc.substring(0,bildSrc.length-8) + "_act.gif";
}}}



function mOut(a){
    if(browser){
        if(a != position){
            bildSrc = document.images[a].src;
            document.images[a].src = bildSrc.substring(0,bildSrc.length-8) + "_pas.gif";
}}}



function mClick(a){

    if(browser){
        if(position != "home"){
            bildSrcOld = document.images[position].src;
            document.images[position].src = bildSrcOld.substring(0,bildSrcOld.length-8) + "_pas.gif";
    	}
        bildSrcNew = document.images[a].src;
        document.images[a].src = bildSrcNew.substring(0,bildSrcNew.length-8) + "_act.gif";
        position = a;
}}