var n = 0;
var ad = "credit_1.gif";
var imgs = new Array ( "credit_2.gif", "credit_3.gif", "credit_1.gif");
var links = new Array ( "fares.htm", "fares.htm", "fares.htm");
function rotate()
{
   document.getElementById('slideshow').innerHTML = '<a href="' + links[n] + '"><img src="assets/banneradds/' + imgs[n] + '" \/><\/a>';
   n = ++n;
   if ( n == 3 )
   {
      n = 0;
   }
   slideshow();
}
function slideshow()
{
   setTimeout("rotate()",4000);
}