var bgimages=new Array()
bgimages[0]="images/nubescomp.jpeg"
bgimages[1]="images/nubescomp.jpeg"
bgimages[2]="images/nubescomp.jpeg"
bgimages[3]="images/nubescomp.jpeg"
var pathToImg=new Array()
for (i=0;i<bgimages.length;i++)
{  pathToImg[i]=new Image()
   pathToImg[i].src=bgimages[i] }
var inc=-1
function bgSlide()
{  if (inc<bgimages.length-1) inc++
   else inc=0
   document.body.background=pathToImg[inc].src }
if (document.all||document.getElementById) window.onload=new Function('setInterval("bgSlide()",3000)')