try{ 
var marqueesHeight = 13; //高度 
var stopscroll = false; 
var scrollElem = document.getElementById("scrolllayer"); 
with(scrollElem){ 
style.width = 560;//宽度 
style.height = marqueesHeight; 
style.overflow = 'hidden'; 
noWrap = true; 
} 
scrollElem.onmouseover = new Function('stopscroll = true'); 
scrollElem.onmouseout = new Function('stopscroll = false'); 
var preLeft = 0; 
var currentLeft = 0; 
var stoptime = 0; 
var leftElem = document.getElementById("scrollmessage"); 
scrollElem.appendChild(leftElem.cloneNode(true)); 
init_srolltext(); 
}catch(e) {} 
function init_srolltext(){ 
scrollElem.scrollLeft = 0; 
setInterval('scrollUp()', 30); //滚动速度 
} 
function scrollUp(){ 
if(stopscroll) return; 
currentLeft += 1; 
if(currentLeft == 560) { //滚动距离 
stoptime += 1; 
currentLeft -= 1; 
if(stoptime == 1) { //停顿时间 
currentLeft = 0; 
stoptime = 0; 
} 
}else{ 
preLeft = scrollElem.scrollLeft; 
scrollElem.scrollLeft += 1; 
if(preLeft == scrollElem.scrollLeft){ 
scrollElem.scrollLeft = 0; 
scrollElem.scrollLeft += 1; 
} 
} 
}