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

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)
	{
		index04_over = newImage("images/index04_selected.jpg");
		index05_over = newImage("images/index05_selected.jpg");
		index06_over = newImage("images/index06_selected.jpg");
		index07_over = newImage("images/index07_selected.jpg");
		index27_over = newImage("images/index27_selected.jpg");
		
		preloadFlag = true;
	}
}