// JavaScript Document



var img = new Array(

 '<img src="common/img/top11.jpg" alt="/">',
 
 '<img src="common/img/top12.jpg" alt="/">',

 '<img src="common/img/top13.jpg" alt="/">'

);



function drawRandamImage(){

 var amount = img.length;

 no = Math.floor(Math.random() * amount);

 document.write(img[no]);

}