title: Uncaught TypeError: Object #<Event> has no method 'split'
body: <p>I'm writing a Javascript function to preload pictures on a website.</p>
  
  <pre><code>function preload(images) {
  if (document.images) {
          var i = 0;
          var imageArray = new Array();
          imageArray = images.split(';');
          var imageObj = new Image();
          for(i=0; i&lt;=imageArray.length-1; i++) {
          imageObj.src=images[i];
          }
      }
  }
  preload('img1.jpg;img2.jpg;img3.jpg');
  </code></pre>
  
  <p>It's giving me an error: 
      Uncaught TypeError: Object # has no method 'split'</p>
  
  <p>What is causing this? How can i fix it?</p>
  
  <p>Please let me know if I should provide more information,
  Thanks!</p>