var 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);
window.addEvent('domready', sfHover);

		// centering in ie6
		if (Browser.Engine.trident) {
			if (Browser.Engine.version < 5) {		
				var moveWrap = function() {
					var wsize = window.getSize();
					
					var wrapel = $('wrapper');
					var wrapsize = wrapel.getSize();
					
					var margin = (wsize.x - wrapsize.x) / 2;
					
					if (margin < 0)
						margin = 0;
						
					wrapel.setStyle('margin-left',margin);
				};
				
				window.addEvent('domready', moveWrap);
				window.addEvent('resize', moveWrap);
			}
		}