<!--

var timer;
var offsetY = 0;
var beforeY = 0;

function setMenu(){
	clearInterval(timer);
	timer=setTimeout("moveMenu()",180)
}

function moveMenu(){
	var scrollY;
	var moveToY;
	var moveByY;

	scrollY = document.documentElement.scrollTop;
	moveToY = scrollY+offsetY;
	moveByY = Math.floor((moveToY-beforeY)/4);
	beforeY = beforeY+moveByY;
	idName  = "sidemenu";

	if(document.getElementById(idName)){
		var oj = document.getElementById(idName).style;
		oj.top  = (parseInt(oj.top)+moveByY )+'px';
	}else if(document.all){
		document.all(idName).style.pixelTop += moveByY;
	}else if(document.layers){
		document.layers[idName].moveBy(0,y);
	}

	if(Math.abs((moveToY-beforeY)) > 1){
		timer=setTimeout("moveMenu()",1)
	}
}

window.onscroll=setMenu;
-->