function imgMouseOver(imgObj) 
{
	var thisSrc = ((imgObj["origSrc"])?imgObj["origSrc"]:imgObj.src);
	if (!thisSrc.match(/_hover/))
	{
		imgObj.src = thisSrc.replace(/(.*)(\..*)$/,'$1_hover$2');
	}
}

function imgMouseOut(imgObj) 
{
	var thisSrc = ((imgObj["origSrc"])?imgObj["origSrc"]:imgObj.src);
	if (thisSrc.match(/_hover/)) 
	{
		imgObj.src = thisSrc.replace('_hover','');
	}
}