sfHover = function() {
		var sfEls = document.getElementById("topnav").getElementsByTagName("LI");
		for (var i=0; i<sfEls.length; i++) {
			sfEls[i].onmouseover=function() {
				this.className+=" sfhover";
			}
			sfEls[i].onmouseout=function() {
				this.className=this.className.replace(new RegExp(" sfhover\\b"), "");
			}
		}
	}
	if (window.attachEvent) window.attachEvent("onload", sfHover);
	
	function getLoc() {
		var folder = window.location.pathname.match(/\/([^\/]*)\//);
		if (typeof(folder) == "array") {
			var folderName = folder[1];
		} else {
			var folderName = "Never To Be Matched";		
		}
		return folderName;
	}

	function swapImg(imgElement,action){
		var imgName = imgElement.src;
		switch(action) {
			case "on":
				if (imgElement.src.indexOf("1.jpg") < 0) {
					imgElement.src = imgName.replace(/.jpg/i,"1.jpg");
				}
			break;
			case "off":
				if ((imgElement.src.indexOf("1.jpg") > 0) && (imgElement.src.indexOf(getLoc()) < 0)) {
					imgElement.src = imgName.replace(/1.jpg/i,".jpg");
				}
			break;
		}
	}