var slides;
function openSlideShow(kat,y,x)
   {
        if(slides)
         {
            slides.close();
         }

         slides =  open('','slideShow','width='+x+',height='+y+',scrollbars=no,status=no,resize=yes');
         var url = "http://www.petersberger-trainertage.de/msemi/a/frontend/slideWin.html?kat="+kat+"&show=1&sort=17-ObjectSort&EXTTYPE=70";
         slides.location.href=url;
   }

function openSwfStream()
   {
        if(slides)
         {
            slides.close();
         }
         url="/swfwin.html";
         slides =  open('','Stream','width=680,height=430,scrollbars=no,status=no,resize=yes');
         slides.location.href=url;
   }

    function openDok(url)
    {
     var urlN;
     var constU = 'https://premium-link.net/newauth/popup0/';
     var regEx   = new RegExp('premium-link\.net');
     if(regEx.exec(url))
         {
            urlN = url;
            url = constU + urlN;
         }
     var dokLoad  = open('','ourDocWin','width=570,height=500,status=no,scrollbars,resize=yes,screenx=50,screeny=50');
     dokLoad.location.href=url;
     return false;
    }