function displayRandomImage(imageName,array){ 
	document.images[imageName].src=array[new Date().getTime()%array.length]; 
	} 
	urls=["images/selfstorage1.gif",
	      "images/selfstorage2.gif",
	      "images/selfstorage3.gif",
	      "images/selfstorage4.gif",
	      "images/selfstorage5.gif",
	      "images/selfstorage6.gif",
	      "images/selfstorage7.gif",
	      "images/selfstorage8.gif",
	      "images/selfstorage9.gif",
	      "images/selfstorage10.gif",
	      "images/selfstorage11.gif",
	      "images/selfstorage12.gif",
	      "images/selfstorage13.gif",
	      "images/selfstorage14.gif",
	      "images/selfstorage15.gif",
	      "images/selfstorage16.gif",
	      "images/selfstorage17.gif",
	      "images/selfstorage18.gif",
	      "images/selfstorage19.gif",
	      "images/selfstorage20.gif",
	      "images/selfstorage21.gif",
	      "images/selfstorage22.gif",
	      "images/selfstorage23.gif",
	      "images/selfstorage24.gif"]