var oRegImg = new Image();
var oSelImg = new Image();

if (document.getElementById || document.images)
{
	oRegImg.src = "images/lnav_folder.gif";
	oSelImg.src = "images/lnav_folder_sel.gif";
}
	
function selImg(iIdx)
{
	if (document.getElementById)
	{
		var oImg = document.getElementById("folder" + iIdx);
		oImg.src = oSelImg.src;
	}
	else if (document.images)
	{
		var oImg = document.images["folder" + iIdx];
		oImg.src = oSelImg.src;
	}
}
	
function restImg(iIdx)
{
	if (document.getElementById)
	{
		var oImg = document.getElementById("folder" + iIdx);
		oImg.src = oRegImg.src;
	}
	else if (document.images)
	{
		var oImg = document.images["folder" + iIdx];
		oImg.src = oRegImg.src;
	}
}