function banner(t)
{
   if (t=="dolni")
      b=["mojeikonky/468x62px.gif#","http://www.best-e-shop.cz/468x60.jpg#www.best-e-shop.cz"];

   p=b.length;
   n=Math.round(Math.random()*(p-1));
   v=b[n].split("#");
   v_src=v[0];v_url="http://"+v[1];
   document.write('<a href="'+v_url+'">'+'<IMG SRC="'+v_src+'" border="0"></A>');
}