br_name  = navigator.appName; 
br_vers = parseFloat(navigator.appVersion); 

if (br_name  == "Netscape" && br_vers >= 3.0) { roll = 'true'; } 
else if (br_name  == "Microsoft Internet Explorer" && br_vers >= 3.0) { roll = 'true'; } 
else { roll = 'false'; } 

function over(img,ref) { if (roll == 'true') { document.images[img].src = ref; } } 
function out(img,ref)  { if (roll == 'true') { document.images[img].src = ref; } } 

if (roll == 'true') 
{ 

}

var randHed = 3

  var quote = new Array(randHed+1)
  quote[0]=""
  quote[1]="1"
  quote[2]="2"
  quote[3]="3"

  function rndnumber(){
        var randscript = -1
        while (randscript < 0 || randscript > randHed || isNaN(randscript)){
                randscript = parseInt(Math.random()*(randHed+1))
        }
        return randscript
}
     quo = rndnumber()
     quox = quote[quo]