// JavaScript Document 

/***** 
@author leaves chen (leaves615@gmail.com) 
@copyright 2009 
*****/ 
var pause=false; 
var scrollTimeId=null; 
var container=null; 
var lineHeight=null; 
var speed=0; 
var delay=0; 
simpleScroll=function(container1,lineHeight1,speed1,delay1){ 
container=document.getElementById(container1); 
lineHeight=lineHeight1; 
speed=speed1; 
delay=delay1; 
//滚动效果 
scrollexc=function(){ 
if(pause) return ; 
container.scrollTop+=2; 
var lh=lineHeight||container.getElementsByTagName('li')[0].offsetHeight; 
if(container.scrollTop%lh<=1){ 
clearInterval(scrollTimeId); 
fire(); 
container.scrollTop=0; 
setTimeout(start,delay*1000); 
} 
}; 
//开始滚动 
start=function(){ 
var lh=lineHeight||container.getElementsByTagName('li')[0].offsetHeight; 
if (container.scrollHeight - container.offsetHeight >= lh) 
scrollTimeId = setInterval(scrollexc, speed); 
}; 
//把子节点树中的第一个移动到最后 
fire=function(){ 
container.appendChild(container.getElementsByTagName('li')[0]); 
}; 
container.onmouseover=function(){pause=true;}; 
container.onmouseout=function(){pause=false;}; 
setTimeout(start,delay*1000); 
};