function nahoda(zacatek, konec)
{
 var rozsah = konec-zacatek+1;
 var vysledek = parseInt(parseFloat(Math.random()*rozsah+zacatek));
 return (vysledek);
}
function img2 (filename, link)
{
 this.filename = filename;
 this.link = link;
}
var imgt = new Array();
 imgt[1] = new img2 ("images/reklama/ckp_ico_2.gif", "http://www.cokdyvpraze.cz");
 imgt[2] = new img2 ("images/reklama/hoe_ico2.gif", "http://www.heartofeurope.cz");
 imgt[3] = new img2 ("images/reklama/artka.gif", "http://www.volny.cz/artkozlov/");
 imgt[4] = new img2 ("images/reklama/reboot_i.gif", "http://www.reboot.cz");
 imgt[5] = new img2 ("images/reklama/agia.gif", "http://www.agiab.cz");
 imgt[6] = new img2 ("images/reklama/pama.gif", "http://www.psst.cz/panika/");
 imgt[7] = new img2 ("images/reklama/zusih.gif", "http://www.volny.cz/zusih/");
 imgt[8] = new img2 ("images/reklama/krnepo.gif", "http://www.tatra-krnepo.cz");
 imgt[9] = new img2 ("images/reklama/panikaa.gif", "http://www.psst.cz/panika/");
 imgt[10] = new img2 ("images/reklama/psstc.gif", "http://www.psst.cz");
 imgt[11] = new img2 ("images/reklama/ckp_ico_2.gif", "http://www.cokdyvpraze.cz");
 imgt[12] = new img2 ("images/reklama/hoe_ico2.gif", "http://www.heartofeurope.cz");
function ico()
{
 var t = nahoda (1, imgt.length-1);
 document.write ("<a href="+imgt[t].link+"><img width=88 height=31 hspace=0 vspace=2 valign='top' src="+imgt[t].filename+" alt='odkazy' border=1></a>");
}