// JavaScript Document

/* this function was copied from /template/_js/depauw.js */
function addEvent(obj, evType, fn){
 if (obj.addEventListener){
   obj.addEventListener(evType, fn, true);
   return true;
 } else if (obj.attachEvent){
   var r = obj.attachEvent("on"+evType, fn);
   return r;
 } else {
   return false;
 }
}

/* This script was supplied free by Hypergurl 
   http://www.hypergurl.com 
   JavaScript to interpolate random images into a page. */

/*
tested on browsers: IE6, IE7, Opera 9, Firefox 2
*/
function loadRandomImage()
{ 
  var ic = 12; // Number of alternative images
  var choice = pickRandom(ic);
  var s = document.getElementById("Banner");
  
  var xoxo = new Array(ic); // Array to hold filenames 
  
  //xoxo[0] = "/templates/_images/banners/banner.jpg"; 
  //xoxo[1] = "/templates/_images/banners/banner2.jpg"; 
  xoxo[0] = "/templates/_images/banners/banner2.jpg"; 
  xoxo[1] = "/templates/_images/banners/banner-emison.jpg"; 
  xoxo[2] = "/templates/_images/banners/banner-flowers-art.jpg"; 
  xoxo[3] = "/student/studentlife/_images/_banner_images/_students_withcasey.JPG"; 
  xoxo[4] = "/student/studentlife/_images/_banner_images/_blackboard.jpg"; 
  xoxo[5] = "/student/studentlife/_images/_banner_images/_chairs.jpg";
  xoxo[6] = "/student/studentlife/_images/_banner_images/_royo.jpg";
  xoxo[7] = "/student/studentlife/_images/_banner_images/_chairs2.jpg";
  xoxo[8] = "/student/studentlife/_images/_banner_images/_dpuchair.jpg";
  xoxo[9] = "/student/studentlife/_images/_banner_images/_students.jpg";
  xoxo[10] = "/student/studentlife/_images/_banner_images/_walk.jpg";
  xoxo[11] = "/student/studentlife/_images/_banner_images/_eastcollege.JPG";
  /*
  xoxo[14] = "/templates/_images/banners/bannerstudents.jpg"; 
  xoxo[15] = "/templates/_images/banners/bannerstudents.jpg"; 
  xoxo[16] = "/templates/_images/banners/bannerstudents.jpg"; 
  /*
  xoxo[3] = "http://www.yoursite.com/graphic4.gif"; 
  xoxo[4] = "http://www.yoursite.com/graphic5.gif"; 
  xoxo[5] = "http://www.yoursite.com/graphic6.gif"; 
  */
  
  // Write out an IMG tag, using a randomly-chosen image name.
  
  s.style.backgroundImage = "url(" + xoxo[choice] + ")";
  
//	s.style.background = "url('" + xoxo[choice] + "')";
//	YAHOO.util.Dom.setStyle(['banner'], 'background-image', xoxo[choice] );
}

function pickRandom(range) 
{ 
  if (Math.random)
    return Math.round(Math.random() * (range-1));
  else 
  { var now = new Date(); 
    return (now.getTime() / 1000) % range;
  }
}

if (!window.opera)
{
  window.onload = loadRandomImage;
  addEvent(window, 'load', loadRandomImage);
}
//window.setInterval("loadRandomImage()", 10000);