sfHover = function() {
	var sfEls = document.getElementById("nav").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 txtSize(size){
		switch (size){
		case 2:
			document.getElementById("content").style.fontSize = "15px";
				break;
		case 1:
			document.getElementById("content").style.fontSize = "12px";
				break;
		};
	};