function roll_over(img_name, img_src)
   {
   img_src = "/fileadmin/styles/06_layouts_0col/img/menu/" + img_src;
   document[img_name].src = img_src;
   }
   
function roll_over_quote(img_name, img_src)
   {
   img_src = "/fileadmin/Offerten_Anfragen/" + img_src;
   document[img_name].src = img_src;
   }