function switch_image(name) {
         //alert(name);
         document.getElementById("img_"+name).style.zIndex = 100;
         document.getElementById("img_"+name).style.display = 'block';
         
         if(name=="trachten") {
           document.getElementById("img_hochzeit").style.zIndex = 9;
           document.getElementById("img_hochzeit").style.display = 'none';
           document.getElementById("img_glamour").style.zIndex = 8;
           document.getElementById("img_glamour").style.display = 'none';
         } else if(name=="hochzeit") {
           document.getElementById("img_trachten").style.zIndex = 9;
           document.getElementById("img_trachten").style.display = 'none';
           document.getElementById("img_glamour").style.zIndex = 8;
           document.getElementById("img_glamour").style.display = 'none';
         } else {
           document.getElementById("img_trachten").style.zIndex = 9;
           document.getElementById("img_trachten").style.display = 'none';
           document.getElementById("img_hochzeit").style.zIndex = 8;
           document.getElementById("img_hochzeit").style.display = 'none';
         }
}