UAg = window.navigator.userAgent; BVers = parseInt(UAg.charAt(UAg.indexOf("/")+1),10);
function IsIE() { return UAg.indexOf("MSIE") > 0;}
var NN4 = (BVers >= 4 && document.layers);
function FindElem(n,ly) { if (BVers < 4) return document[n];
	var curDoc = ly ? ly.document : document; var elem = curDoc[n];
	if (!elem) { for (var i=0;i<curDoc.layers.length;i++) {
		elem = FindElem(n,curDoc.layers[i]); if (elem) return elem; }}
	return elem;
	}
function GetImg(name) {
	var img = null;
	if (document.images) {
		if (!IsIE()) img = FindElem(name,0);
		else img = document.images[name];
		}
	return img;
	}
function SetImgURL(name,loc) {
	var img = GetImg(name);
	if (img) img.src = loc;
	}