var returnValue = true;
var links = ["http://www.PortlandHomesOnline.com ",
				"http://www.homerungraphics.net/",
				"http://www.eastpdxnews.com"];
			
var imgs = ["AdPages/WhyJoin/rotator4/NormRice_D.jpg",
				"AdPages/WhyJoin/rotator4/homerun.jpg",
				"AdPages/ExperiencePortland/rotator4/DaveAshtonCard.jpg"];
var len = (links.length + imgs.length) / 2;
if((len*2)%2 == 1){returnValue=false;}
function showAd(){
   if(returnValue==false)
         {document.write('<img src="blank.gif" alt="">');return false;}
   var rand = Math.floor(len*Math.random())
   document.write("<a href=\""+links[rand]+"\" title=\"Go to "+links[rand]+"\"><img src=\""+imgs[rand]+"\" alt=\"Go to "+links[rand]+"\"></a>");
}