// 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;
var tp = 1;
simpleScroll = function(container1, lineHeight1, speed1, delay1, tp1) {
    container = document.getElementById(container1);
    lineHeight = lineHeight1;
    speed = speed1;
    delay = delay1;
    tp = tp1;
    //滚动效果 
    if (1 == tp) {
        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);
        };
    }
    else {
        scrollexc = function() {
            if (pause) return;
            container.scrollLeft += 2;
            var lh = lineHeight || container.getElementsByTagName('li')[0].offsetWidth;
            if (container.scrollLeft % lh <= 1) {
                clearInterval(scrollTimeId);
                fire();
                container.scrollLeft = 0;
                setTimeout(start, delay * 1000);
            }
        };
        //开始滚动 
        start = function() {
        var lh = lineHeight || container.getElementsByTagName('li')[0].offsetWidth;
        if (container.scrollLeft - container.offsetWidth >= 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); 
};