function changeImage(id){

    // alert(document.compatMode);

    id2 = "navi_1_"+id;
    pfad = "images/bild_"+id+"_a.gif";


    if(document.getElementById(id2)){
        eval('document.getElementById("'+id2+'").style.backgroundImage = "url('+pfad+')"');
    }
}


function changeImageBack(){

    for(var i=1;i<7;i++){

        id = "navi_1_"+i;

        if(document.getElementById(id)){
           eval('document.getElementById("navi_1_'+i+'").style.backgroundImage = "url(images/bild_'+i+'.gif)"');
        }
    }

}

function aufklappMenue(wert){
          
    for(var i=1;i<3;i++){

        id = "route_"+i;

        if(document.getElementById(id)){
           eval('document.getElementById("route_'+i+'").style.display = "none"');
        }
    }

    if(wert == 1){
          document.getElementById("route_1").style.display = "block";
          document.getElementById("route_2").style.display = "none";
          document.getElementById("aufklappMenue1").style.color = "#A21235";
          document.getElementById("aufklappMenue1").style.backgroundImage = "url(images/button_a.gif)";
          document.getElementById("aufklappMenue2").style.color = "#C58163";
          document.getElementById("aufklappMenue2").style.backgroundImage = "url(images/button.gif)";

    }

    if(wert == 2){
          document.getElementById("route_1").style.display = "none";
          document.getElementById("route_2").style.display = "block";          
          document.getElementById("aufklappMenue1").style.color = "#C58163";
          document.getElementById("aufklappMenue1").style.backgroundImage = "url(images/button.gif)";
          document.getElementById("aufklappMenue2").style.color = "#A21235";
          document.getElementById("aufklappMenue2").style.backgroundImage = "url(images/button_a.gif)";
    }

       // alert(wert);

}