大家看下跨浏览器滚动代码！

<script language="javascript">
var info = "欢迎您";
var pop1 = 0;  //阶段一中取出的字符数初始值
var pop2 = 0;  //阶段三中隐藏的字符数初始值
var space = 0;  //初始空格
var speed = 200;  //滚动的速度

function scroll1(){
    if(pop1<info.length){ //进入第一阶段
        pop1 += 1;
        text1.innerText = info.substring(0,pop1);
        setTimeout("scroll1()",speed);
        }else{
            pop1 = 0;
            setTimeout("scroll2()",speed);
            }
        }
function scroll2(){
    if(text1.offsetWidth<d.clientWidth){
        space += 1;
        strspace = "";
        for(var i=0; i<space; i++){
            strspace += " ";
            text1.innerText = info + strspace;
            setTimeout("scroll2()",speed);   
            }
      
        }else{  //进入第三阶段
            d.style.textAlign = "left";
            space = 0;
            setTimeout("scroll3()",speed);   
           
            }
    }   
   
function scroll3(){
    if(pop2<info.length){
        pop2 += 1;
        text1.innerText = info.substring(pop2,info.length);
        setTimeout("scroll3()",speed);   
        }else{
            d.style.textAlign = "right";
            pop2 = 0;
            setTimeout("scroll1()",speed);   
            }
    }   
</script>
<div id="d" style="width:500px;height:80px;position:relative;text-align:right;border:1px #00F solid;">
<span id="text1" ></span>
</div>