var bgimg = new Array();
  bgimg[0] = 'bgp1.jpg';
  bgimg[1] = 'bgp2.jpg';
  bgimg[2] = 'bgp3.jpg';
  var current_img=0;
  window.onload = function() { if ( document.getElementById('main') ) { nextImage(); } };
  function bgchange( imgnum ) { document.getElementById("main").style.background = "url(" + bgimg[imgnum] + ")"; }
  function nextImage() {
   cOpacity1 = document.getElementById('main').xOpacity = 1.0;
   // setTimeout( 'fade()', 500 );
   document.getElementById('main').style.background = "url("+bgimg[current_img]+") top left no-repeat";
   current_img=( (current_img+1) > (bgimg.length-1) )?0:current_img+1;
   setTimeout( 'nextImage()', 10000 );
  }
  function fade() {
   document.getElementById('main').xOpacity -= .1;
   setOpacity( document.getElementById('main') ); 
   if( document.getElementById('main').xOpacity > 0 ) { setTimeout( fade, 50 ); }
   function setOpacity( obj ) {
    if(obj.xOpacity > .99) { obj.xOpacity = .99; return; }
    obj.style.opacity = obj.xOpacity;
    obj.style.MozOpacity = obj.xOpacity;
    obj.style.filter = "alpha(opacity=" + (obj.xOpacity*100) + ")";
   }
  }