// JavaScript Document
// pick random number and assign image across two areas
// defined as Top and Bottom
// (c) IFR 2004

function selectbanner()
{
   var maxImages = 4;
   return Math.floor( Math.random() * ( maxImages ) );
}

function selectTopBanner( inImageNumber )
{
   document.BannerTop.src = "images/z_banner_" + inImageNumber + ".gif";
}