function ad(position)
{
   if(position == "Middle1")
   {
if (typeof(et_ord)=='undefined')
et_ord=Math.floor(Math.random()*10000000000000000);
if (typeof(et_tile)=='undefined') et_tile=1;
document.write('<scr'+'ipt language="JavaScript" src="http://ad.de.doubleclick.net/adj/GE-B2B-KARRIEREPLANER/home;sz=728x90;tile=' + (et_tile++) + ';ord=' + et_ord + '?" type="text/javascript"></scr' + 'ipt>');
   }
   else if(position == "Frame1")
   {
if (typeof(et_ord)=='undefined')
et_ord=Math.floor(Math.random()*10000000000000000);
if (typeof(et_tile)=='undefined') et_tile=1;
document.write('<scr'+'ipt language="JavaScript" src="http://ad.de.doubleclick.net/adj/GE-B2B-KARRIEREPLANER/home;dcopt=ist;sz=120x600,160x600,200x600;tile=' + (et_tile++) + ';ord=' + et_ord + '?" type="text/javascript"></scr' + 'ipt>');
   }
}