function getElm(eID) {
			return document.getElementById(eID);
		}
		function show(eID) {
			getElm(eID).style.display='block';
		}
		function hide(eID) {
			getElm(eID).style.display='none';
		}
		function setOpacity(eID, opacityLevel) {
			var eStyle = getElm(eID).style;
			eStyle.opacity = opacityLevel / 100;
			eStyle.filter = 'alpha(opacity='+opacityLevel+')';
		}
		function fade(eID, startOpacity, stopOpacity, duration) {
			var speed = Math.round(duration / 100);
			var timer = 0;
			if (startOpacity < stopOpacity){
				for (var i=startOpacity; i<=stopOpacity; i++) {
					setTimeout("setOpacity('"+eID+"',"+i+")", timer * speed);
					timer++;
				} return;
			}
			for (var i=startOpacity; i>=stopOpacity; i--) {
				setTimeout("setOpacity('"+eID+"',"+i+")", timer * speed);
				timer++;
			}
		}
		function fadeIn(eID) {
			setOpacity(eID, 0); show(eID); var timer = 0;
			for (var i=1; i<=100; i++) {
				setTimeout("setOpacity('"+eID+"',"+i+")", timer * 5);
				timer++;
			}
		}
		function fadeOut(eID) {
			var timer = 0;
			for (var i=100; i>=1; i--) {
				setTimeout("setOpacity('"+eID+"',"+i+")", timer * 3);
				timer++;
			}
			setTimeout("hide('"+eID+"')", 310);
		}