// Rollover PreloadContent
//  onmouseover="changeImages('ImageName', 'path/image_over.jpg'); return true;"
//  onmouseout="changeImages('ImageName', 'path/image.jpg'); return true;"
//  onmousedown="changeImages('ImageName', 'path/image_over.jpg'); return true;"
//  onmouseup="changeImages('ImageName', 'path/image_over.jpg'); return true;">
//  <img name="ImageName" src="">
// Just replace image with preloaded image using onmouse parameters
// Can be used to rollover 1 image and replace multiple images with preloaded images - JH

function newImage(arg)
{
    if (document.images)
    {
	    rolloverimage = new Image();
	    rolloverimage.src = arg;
	    return rolloverimage;
    }
}

function changeImages()
{
    if (document.images && (preloadFlag == true))
    {
	    for (var i=0; i<changeImages.arguments.length; i+=2)
	    {
	        document[changeImages.arguments[i]].src = changeImages.arguments[i + 1];
	        
	    }
    }
}

var preloadFlag = false;

function preloadImages()
{
    if (document.images)
    {
	    PT_Sample_Arrow_back_over = newImage("images/PT_Sample_Arrow_back_over.gif");
	    PT_Sample_Arrow_forward_over = newImage("images/PT_Sample_Arrow_forward_over.gif");
	    preloadFlag = true;
    }
}