js(javascript)实现的列表文字下上滚动并加定高定宽停顿效果-JavaSript-爱易网页

js(javascript)实现的列表文字下上滚动并加定高定宽停顿效果

日期：2014-05-16　浏览次数：20471 次

js(javascript)实现的列表文字上下滚动并加定高定宽停顿效果
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title></title>
</head>
<body>
<script type="text/javascript">
var $ = function (id) {
    return "string" == typeof id ? document.getElementById(id) : id;
};

var Class = {
create: function() {
    return function() {
      this.initialize.apply(this, arguments);
    }
}
}

Object.extend = function(destination, source) {
    for (var property in source) {
        destination[property] = source[property];
    }
    return destination;
}

function addEventHandler(oTarget, sEventType, fnHandler) {
    if (oTarget.addEventListener) {
        oTarget.addEventListener(sEventType, fnHandler, false);
    } else if (oTarget.attachEvent) {
        oTarget.attachEvent("on" + sEventType, fnHandler);
    } else {
        oTarget["on" + sEventType] = fnHandler;
    }
};

var Scroller = Class.create();
Scroller.prototype = {
initialize: function(idScroller, idScrollMid, options) {
    var oScroll = this, oScroller = $(idScroller), oScrollMid = $(idScrollMid);

    this.heightScroller = oScroller.offsetHeight;
    this.heightList = oScrollMid.offsetHeight;

    if(this.heightList <= this.heightScroller) return;

    oScroller.style.overflow = "hidden";
    oScrollMid.appendChild(oScrollMid.cloneNode(true));

    this.oScroller = oScroller;
    this.timer = null;

    this.SetOptions(options);

    this.side = 1;//1是上 -1是下
    switch (this.options.Side) {
        case "down" :
            this.side = -1;
            break;
        case "up" :
        default :
            this.side = 1;
    }

    addEventHandler(oScrollMid , "mouseover", function() { oScroll.Stop(); });
    addEventHandler(oScrollMid , "mouseout", function() { oScroll.Start(); });

    if(this.options.PauseStep <= 0 || this.options.PauseHeight <= 0) this.options.PauseStep = this.options.PauseHeight = 0;
    this.Pause = 0;

    this.Start();
},
//设置默认属性
SetOptions: function(options) {
    this.options = {//默认值
      Step:            1,//每次变化的px量
      Time:            20,//速度(越大越慢)
      Side:&

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js(javascript)实现的列表文字下上滚动并加定高定宽停顿效果

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