var bild1;
zfall=Math.round(Math.random()*5)+1;

if (zfall == 1)
{bild1="<A HREF=\"http://www.DHL.com\" target=\"_blank\"><IMG SRC=\"http://www.exp-ir.com/banners/banner-big.gif\" BORDER=1 WIDTH=468 HEIGHT=60> </A>";}

else if (zfall == 2)
{bild1="<A HREF=\"http://www.world-news.org/persian\" target=\"_blank\"><IMG SRC=\"http://www.exp-ir.com/banners/w-big.gif\" BORDER=1 WIDTH=468 HEIGHT=60> </A>";}

else if (zfall == 3)
{bild1="<A HREF=\"http://www.iranair.com\" target=\"_blank\"><IMG SRC=\"http://www.exp-ir.com/banners/iranair.gif\" BORDER=1 WIDTH=468 HEIGHT=60> </A>";}

else if (zfall == 4)
{bild1="<A HREF=\"http://www.saiwan.com\" target=\"_blank\"><IMG SRC=\"http://www.exp-ir.com/banners/saiwan.gif\" BORDER=1 WIDTH=468 HEIGHT=60> </A>";}

else if (zfall == 5)
{bild1="<A HREF=\"http://www.butaneco.com\" target=\"_blank\"><IMG SRC=\"http://www.exp-ir.com/banners/butane.gif\" BORDER=1 WIDTH=468 HEIGHT=60> </A>";}

else if (zfall == 6)
{bild1="<A HREF=\"http://www.alborzinsurance.ir\" target=\"_blank\"><IMG SRC=\"http://www.exp-ir.com/banners/aliborz-big.gif\" BORDER=1 WIDTH=468 HEIGHT=60> </A>";}
document.write(bild1);