var PageImages = new Array();

//var E = document.getElementById;

function AddImage(strID, strURL)
{
	var img = new Image();
	img.src = strURL;
	PageImages[strID] = img;
}

function GetImage(strID)
{
	return PageImages[strID];
}

function AddRolloverImages(strID, strNormalURL, strMouseOverURL)
{
	AddImage(strID + "_Normal", strNormalURL);
	if (strMouseOverURL && strMouseOverURL != "")
		AddImage(strID + "_MouseOver", strMouseOverURL);
}

function SetRolloverImage(strID, OverOrOut)
{
	var strForm;
	
	if (window.navigator.appName.toLowerCase().indexOf("netscape") > -1)
		strForm = "document.forms['frmMain'].";
	else
		strForm = "document.forms[0].";

	if (PageImages[strID + "_MouseOver"])
		eval(strForm + strID).src = 
			(OverOrOut == "over") ? 
				PageImages[strID + "_MouseOver"].src :
				PageImages[strID + "_Normal"].src;
}

function SetImageSrc(image, source)
{
	image.src = PageImages[source].src;
}