var i=Math.round(Math.random()*2);
if (i==0) vloz='<a href="http://www.cestazasportem.cz" target="_blank"><img src="images/banner/cestazasportem.gif" width="468" height="60" border="0"></a>';
if (i==1) vloz='<a href="http://www.zachranari.cz" target="_blank"><img src="images/banner/banner1.gif" width="468" height="60" border="0"></a>';
if (i==2) vloz='<a href="http://www.cestazasportem.cz" target="_blank"><img src="images/banner/cestazasportem.gif" width="468" height="60" border="0"></a>';