function ChangeImg()
{
	var myDiv = document.getElementById("divBgImgChange") ;
	
	var j,list= new Array()
	list[list.length]='url(images/image01.jpg)';													
	list[list.length]='url(images/image02.jpg)';
	list[list.length]='url(images/image03.jpg)';
	j=parseInt(Math.random()*list.length);
	j=(isNaN(j))?0:j;

	myDiv.style.background = list[j] ;
}