lowest=1
 highest=4
 ournumber=0
 function getrandom(){return Math.random()* 5}
 function nowround() {return Math.round(getrandom())}
 ournumber=nowround()

// MAKE SURE THE NUMBER IS NOT TO LOW OR HIGH
if ( ournumber < lowest )
   {ournumber=lowest}
if ( ournumber > highest )
   {ournumber=highest}

/* GET THE FILE NAMES IN AN ARRAY
You need to add your own banner filenames here and change
the bannerdir to the directory or http where your banners
are located
*/
bannerdir="http://www.helperweb.com/bannerimages/pics/";
fn=new Array()
fn[1]="art.jpg"
fn[2]="tractor.jpg"
fn[3]="bear.jpg"
fn[4]="church.jpg"

 
// OK SHOW ME THE BANNER AND DATE
document.write("\<img src=\""+bannerdir+fn[ournumber]+"\"width=\"200\"+ height=\"200\"+\">")