function doRandom(){
var ranNum= Math.floor(Math.random()*3);
return ranNum;
}
var whichBanner=doRandom();
function writeBanner(){
//var theOrg = parent.document.org;
var banner=new Array(3)
banner[0]="<a href=\"http://www.seotoolset.com/training/index.html\" target=\"_blank\"><img src=\"http://www.seotoolset.com/images/training-course.gif\" style=\"border:1px solid #666666;\"></a>";
banner[1]="<a href=\"http://www.seotoolset.com/training/index.html\" target=\"_blank\"><img src=\"http://www.seotoolset.com/images/training-course.gif\" style=\"border:1px solid #666666;\"></a>";
banner[2]="<a href=\"http://www.seotoolset.com/training/index.html\" target=\"_blank\"><img src=\"http://www.seotoolset.com/images/training-course.gif\" style=\"border:1px solid #666666;\"></a>";

//if (theOrg == null){
document.write(banner[whichBanner]);
//document.write(theOrg);
//}
//else{
	//document.write(banner[theOrg]);
	//document.write(theOrg);
//}
}
writeBanner();