(function(ul, delay, speed, lh) {
					var slideBox = (typeof ul == 'string')?document.getElementById(ul):ul;
					var delay = delay||1000, speed=speed||20, lh = lh||20;
					var tid = null, pause = false;
					var start = function() {
						tid=setInterval(slide, speed);
					}
					var slide = function() {
						if (pause) return;
						slideBox.scrollTop += 2;
						if (slideBox.scrollTop % lh == 0) {
							clearInterval(tid);
							slideBox.appendChild(slideBox.getElementsByTagName('li')[0]);
							slideBox.scrollTop = 0;
							setTimeout(start, delay);
						}
					}
					slideBox.onmouseover=function(){pause=true;}
					slideBox.onmouseout=function(){pause=false;}
					setTimeout(start, 4000);
				 })('IssueList', 4000, 2, 20);