//*********************************************************
//* Script: Image Rollover Script
//* Programmed by: Chris Marts - Codrian, Inc.
//* http://www.codrian.com/
//*	To use: create image pairs where the hover image
//*		has a "_on" prefix such as:
//*		home.gif, home_on.gif
//*********************************************************

function makeRollImage(imgName)
{
	var imgObj = new Image();
	imgObj.src = "/images/" + imgName + "_on.png";
	return imgObj;
}

function turnRollOn(imgName)
{
	if (document.images)
		document[imgName].src = eval(imgName + ".src");
}

function turnRollOff(imgName)
{
	if (document.images)
	{
		var img = document[imgName].src;
		document[imgName].src = img.substring(0, img.lastIndexOf("_")) + img.substring(img.lastIndexOf("."), img.length);
	}
}