Js滚动效果

1.Marquee.js

http://www.popub.net/script/MSClass.html
这个js功能比较齐全，几乎所有效果都有，比较好用。
2.

var scrollElem;

                    var stopscroll;

                    var stoptime;

                    var preTop;

                    var leftElem;

                    var currentTop;

                    var marqueesHeight;



                    function marque(width, height, marqueName, marqueCName)

                    {

                        try

                        {

                            marqueesHeight = height;

                            stopscroll = false;

                            scrollElem = document.getElementById(marqueName);

                            with (scrollElem)

                            {

                                style.width = width;

                                style.height = marqueesHeight;

                                style.overflow = 'hidden';

                                noWrap = true;

                            }

                            scrollElem.onmouseover = new Function('stopscroll = true');

                            scrollElem.onmouseout = new Function('stopscroll = false');

                            preTop = 0;

                            currentTop = 0;

                            stoptime = 0;

                            leftElem = document.getElementById(marqueCName);

                            scrollElem.appendChild(leftElem.cloneNode(true));



                            init_srolltext();

                        } catch (e) { }

                    }

                    function init_srolltext()

                    {

                        scrollElem.scrollTop = 0;

                        setInterval('scrollUp()', 20);

                    }

                    function scrollUp()

                    {

                        if (stopscroll) return;

                        currentTop += 1;

                        if (currentTop == marqueesHeight + 1)

                        {

                            stoptime += 1;

                            currentTop -= 1;

                            if (stoptime == (marqueesHeight) * 4)

                            {//停顿时间

                                currentTop = 0;

                                stoptime = 0;

                            }

                        } else

                        {

                            preTop = scrollElem.scrollTop;

                            scrollElem.scrollTop += 1;

                            if (preTop == scrollElem.scrollTop)

                            {

                                scrollElem.scrollTop = marqueesHeight;

                                scrollElem.scrollTop += 1;

                            }

                        }

                    }



                    // marque(810, 30, "innerul", "innerul")

3.单行滚动，一行只有一个元素。

                     function AutoScrollUp(obj){
                            $(obj).find("ul:first").animate({
                                    marginTop:"-33px"
                            },500,function(){
                                    $(this).css({marginTop:"0px"}).find("li:first").appendTo(this);
                            });
                        }
                    
                     $(document).ready(function(){
                        setInterval('AutoScrollUp("#innerul")',2000);
                     })