function preloadImages(the_images_array)
{
	for(var loop = 0; loop < the_images_array.length; loop++)
	{
		var an_image = new Image();
		an_image.src = the_images_array[loop];
	}
}


function swapImage(imageName, source) 
{ 
	document.images[imageName].src = source; 
} 


function swapImageBack(imageName, source) 
{ 
	document.images[imageName].src = source; 
}