Does this image caching code work?

[filburt1]

<!-- Preload rollovers -->
<script language="javascript">
<!--
function preloadImages()
{
	imageCacher = new Array(5);
	imageSources = new Array("text/passprog.gif", "text/tinyclock.gif", "text/vbtips.gif",
		"text/theater.gif", "text/forums.gif");
	for (i = 0; i < imageSources.length; i++)
	{
		imageCacher[i] = new Image();
		imageCacher.src = imageSources[i];
	}
}
preloadImages();
// -->
</script>

I can't tell if it does because first it does nothing appearance-wise, and second the images are small and load very quickly as it is, especially because I'm testing the page on my own computer.