var suchen = '.jpg';
var replace = '_akt.jpg';
var last_id ;
var akt_found;

var img_naiv = new Array();

function hover (on,id,obj){

//alert ('HOVER');
   if (obj){
    obj . blur (); 
    }

    if (last_id) {
            document . getElementById(last_id) . src = img_naiv[last_id];
    }

    last_id = id;
                  // alert (id);
    if (document . getElementById(id)) {
        lupe = document . getElementById(id) . src;

//var Suche = Aussage.indexOf("Mensch");

        if (!img_naiv[id]) {
             img_naiv[id] = lupe;
        }
//alert (lupe);
        if (on == 1) {

        akt_found = lupe.indexOf("_akt");
        if (akt_found>-1){
        // alert ('reint: '+akt_found);
        return;
        }

        lupe_neu = lupe . replace(suchen, replace);


//        document . getElementById(id) . src = lupe_neu;
        } else {
        lupe_neu = img_naiv[id]
  //      document . getElementById(id) . src = lupe_neu;

        }
//alert (lupe_neu);
        document . getElementById(id) . src = lupe_neu;
    } 



}