<!-- random image code

var Img = new Array() 

Img[0] = 'main_pic1.jpg'
Img[1] = 'main_pic2.jpg'
Img[2] = 'main_pic3.jpg'
Img[3] = 'main_pic.jpg'

var j = 0
var p = Img.length;

var preBuff = new Array()
for (i = 0; i < p; i++){
   preBuff[i] = new Image()
   preBuff[i].src = Img[i]
}

var whichImg = Math.round(Math.random()*(p-1));
function showImg(){
document.write('<img src="images/bannerit/'+Img[whichImg]+'">');
}

//-->