function WM_preloadImages()
{

  /* WM_preloadImages()  Loads images into the browser's cache for later use.
     Usage: WM_preloadImages('image 1 URL', 'image 2 URL', 'image 3 URL', ...); */


  // Don't bother if there's no document.images
  if (document.images)
  {
     if (typeof(document.WM) == 'undefined')
     {
       document.WM = new Object();
     }

     document.WM.loadedImages = new Array();

     // Loop through all the arguments.
     var argLength = WM_preloadImages.arguments.length;

     for(arg=0;arg<argLength;arg++)
     {
       // For each arg, create a new image.
       document.WM.loadedImages[arg] = new Image();
       // Then set the source of that image to the current argument.
       document.WM.loadedImages[arg].src = WM_preloadImages.arguments[arg];
     }
   }
}


function WM_imageSwap(daImage, daSrc)
{
   /* WM_imageSwap()  Changes the source of an image.
      Usage: WM_imageSwap(originalImage, 'newSourceUrl');
      Requires: WM_preloadImages() (optional, but recommended) */


   var objStr,obj;

   // Check to make sure that images are supported in the DOM.
   if(document.images)
   {
      // Check to see whether you are using a name, number, or object
      if (typeof(daImage) == 'string')
      {
        // This whole objStr nonesense is here solely to gain compatability
        // with ie3 for the mac.
        objStr = 'document.' + daImage;
        obj = eval(objStr);
        obj.src = daSrc;
      } else if ((typeof(daImage) == 'object') && daImage && daImage.src)
        {
          daImage.src = daSrc;
        }
   }
}