try{ 
var marqueesHeight = 20; //高度 
var stopscroll = false; 
var scrollElem = document.getElementById("scrolllayer"); 
with(scrollElem){ 
style.width =600;//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 == 600) { //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; 
} 
} 
} 
function MM_swapImgRestore() {
              var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
            }
            function MM_preloadImages() {
              var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
                var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
                if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
            }            
            function MM_findObj(n, d) {
              var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
                d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
              if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
              for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
              if(!x && d.getElementById) x=d.getElementById(n); return x;
            }
function MM_swapImage() {
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}