var Ad_count=9;var Ad_qty=3;var Ads_Used=new Array();
var Ad_timeout=4000;
var An_ad=0;
var Ad_id=new Array();
var Ad_name="";
var temp=0;
var lastAd=-1;
 var Ad_active=new Array();
 Ad_active[0]=1;
 Ad_active[1]=1;
 Ad_active[2]=1;
// preload images into Ad_preload
var Ad_preload=new Array();
 for (i=0;i<Ad_count;i++) Ad_preload[i]=new Image();
 Ad_preload[0].src="images/logo_hp.gif";
 Ad_preload[1].src="images/logo_talgen.jpg";
 Ad_preload[2].src="images/logo_toshiba.gif";
 Ad_preload[3].src="images/logo_3com.gif";
 Ad_preload[4].src="images/logo_acer.gif";
 Ad_preload[5].src="images/logo_cisco.gif";
Ad_preload[6].src="images/logo_apc.gif";
Ad_preload[7].src="images/logo_microsoft.gif";
Ad_preload[8].src="images/logo_star.gif";


var Ad_url=new Array();
 Ad_url[0]="http://www.hp.com/";
 Ad_url[1]="http://www.tally.com/";
 Ad_url[2]="http://www.toshiba.com/";
 Ad_url[3]="http://www.3com.com/";
 Ad_url[4]="http://www.acer.com/";
 Ad_url[5]="http://www.cisco.com/";
 Ad_url[6]="http://www.apc.com/";
 Ad_url[7]="http://www.microsoft.com/";
 Ad_url[8]="http://www.star.net.uk/";


function Banner_rotate(){
	do {
		An_ad=Math.floor(Math.random()*Ad_count);
		}
	while (An_ad==lastAd);
	lastAd=An_ad;
 for (i=0;i<Ad_qty;i++)
 {
 	Ad_name="Add"+i;
 	temp=An_ad+i;
  (temp>=Ad_count)?Ad_id[i]=temp-Ad_count:Ad_id[i]=temp;
	document[Ad_name].src=Ad_preload[Ad_id[i]].src;
}
 setTimeout("Banner_rotate()",Ad_timeout);

}

function Banner_link(whichAd){
 Ad_active[whichAd]=0;
 if (Ad_url[Ad_id[whichAd]].length!=0) window.open(Ad_url[Ad_id[whichAd]], "","toolbar=yes,location=yes,status=yes,menubar=yes,scrollbars=yes");
}
function Banner_status(whichAd)
{ self.window.status=Ad_url[Ad_id[whichAd]];
}