JS特效请高手帮助实现层使终保持在屏幕下面

最近做了一个网站，老板要求在当前页面的下面要有一个公司的联系方式，随意滚屏都一直保持在屏幕的下面不会消失。由于本人对JS不是很懂，在网上找了许久也没有找到合适的代码，请在线高手给予解决，最好有一个完整的代码，谢谢

解决方案 »

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你可以根据需要调整
<!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>
<style type="text/css">
html,body{margin:0;padding:0;}
#y1 {position:fixed;top:0;left:0;width:100px;height:100px;border:1px solid red;}
#y2 {position:fixed;top:0;right:0;width:100px;height:100px;border:1px solid red;}
#y3 {position:fixed;bottom:0;left:0;width:100px;height:100px;border:1px solid red;}
#y4 {position:fixed;bottom:0;right:0;width:100px;height:100px;border:1px solid red;}
</style>


<script type="text/javascript">
  //以下所有脚本只为IE6写，其他浏览器完全可以删除。
  function getViewportScrollX() {
    var scrollX = 0;
    if (document.documentElement && document.documentElement.scrollLeft) {
      scrollX = document.documentElement.scrollLeft;
    }
    else if (document.body && document.body.scrollLeft) {
      scrollX = document.body.scrollLeft;
    }
    else if (window.pageXOffset) {
      scrollX = window.pageXOffset;
    }
    else if (window.scrollX) {
      scrollX = window.scrollX;
    }
    return scrollX;
  }

  function getViewportScrollY() {
    var scrollY = 0;
    if (document.documentElement && document.documentElement.scrollTop) {
      scrollY = document.documentElement.scrollTop;
    }
    else if (document.body && document.body.scrollTop) {
      scrollY = document.body.scrollTop;
    }
    else if (window.pageYOffset) {
      scrollY = window.pageYOffset;
    }
    else if (window.scrollY) {
      scrollY = window.scrollY;
    }
    return scrollY;
  }

  function getViewportWidth() {
    var width = 0;
    if (document.documentElement && document.documentElement.clientWidth) {
      width = document.documentElement.clientWidth;
    }
    else if (document.body && document.body.clientWidth) {
      width = document.body.clientWidth;
    }
    else if (window.innerWidth) {
      width = window.innerWidth - 18;
    }
    return width;
  }

  function getViewportHeight() {
    var height = 0;
    if (window.innerHeight) {
      height = window.innerHeight - 18;
    }
    else if (document.documentElement && document.documentElement.clientHeight) {
      height = document.documentElement.clientHeight;
    }
    else if (document.body && document.body.clientHeight) {
      height = document.body.clientHeight;
    }
    return height;
  }

  if (navigator.userAgent.indexOf("MSIE 6") > -1 && navigator.userAgent.indexOf("MSIE 7") == -1 && navigator.userAgent.indexOf("MSIE 8") == -1) {
    window.ononload = window.onscroll = window.onresize = function (e) {
      var t = getViewportScrollY();
      var l = getViewportScrollX();
      var w = getViewportWidth();
      var h = getViewportHeight();
      document.getElementById("y1").style.left = l + "px";
      document.getElementById("y1").style.top = t + "px";

      document.getElementById("y2").style.left = l + w - document.getElementById("y2").offsetWidth + "px";
      document.getElementById("y2").style.top = t + "px";

      document.getElementById("y3").style.left = l + "px";
      document.getElementById("y3").style.top = t + h - document.getElementById("y2").offsetHeight + "px";

      document.getElementById("y4").style.left = l + w - document.getElementById("y2").offsetWidth + "px";
      document.getElementById("y4").style.top = t + h - document.getElementById("y2").offsetHeight + "px";
    }
  }
</script>
</head>
<body>
<div id="y1">左上角位置的内容</div>
<div id="y2">右上角位置的内容</div>
<div id="y3">左下角位置的内容</div>
<div id="y4">右下角位置的内容</div>
<p>a</p><p>a</p><p>a</p><p>a</p><p>a</p><p>a</p><p>a</p><p>a</p><p>a</p><p>a</p><p>a</p><p>a</p>
<p>a</p><p>a</p><p>a</p><p>a</p><p>a</p><p>a</p><p>a</p><p>a</p><p>a</p><p>a</p><p>a</p><p>a</p>
<p>a</p><p>a</p><p>a</p><p>a</p><p>a</p><p>a</p><p>a</p><p>a</p><p>a</p><p>a</p><p>a</p><p>a</p>
<p>a</p><p>a</p><p>a</p><p>a</p><p>a</p><p>a</p><p>a</p><p>a</p><p>a</p><p>a</p><p>a</p><p>a</p>
</body>
</html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <title></title><script src="http://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js" type="text/javascript"></script><script type="text/javascript">    //解决ie6.0 的bug
    function handingIE6() {
        if ($.browser.msie && $.browser.version == "6.0") {
            $("#flowDiv").css({ "position": "absolute", "right": "10px", "z-index": 100 });
            //底部显示
            var divBottom = $(window).scrollTop() + $(window).height() - $("#flowDiv").outerHeight(true) - 10;
            $("#flowDiv").animate({ top: divBottom }, { duration: 400, queue: false });
        }
    }    $(function () {
        //关闭按钮??
        $("#btnClose").click(function () {
            $("#flowDiv").fadeOut("fast");
        });        //左侧点击显示??
        $("#showFlow").click(function () {
            $("#flowDiv").slideDown("slow");
        });        //IE6.0 执行D代码?
        if ($.browser.msie && $.browser.version == "6.0") {
            handingIE6();        } else {
            $("#flowDiv").css({ "position": "fixed", "right": "10px", "bottom": "10px", "z-index": 100 });
        }
        //显示浮动层?
        //$("#flowDiv").slideDown("slow");
        $("#flowDiv").show();
        //ie6.0 运行D
        $(window).scroll(function () { handingIE6(); }).resize(function () { handingIE6(); });
    })
</script>
<style type="text/css">
    #flowDiv{ width:250px;  overflow:hidden; border:solid 1px green; font-size:13px; display:none;}
    #flowTitle{padding:3px 5px; height:20px; line-height:20px; background:#FFDD55; border-bottom:solid 1px green;  }
    #flowContent{height:100px; padding:5px; background:#E0F7FF;}
</style>
</head>
<body>
<div id="flowDiv">
    <div id="flowTitle"><span style="float:left">标题a</span><span id="btnClose" style="float:right; cursor:pointer"> ｘ?? </span></div>
    <div id="flowContent">内容Y</div>
</div><p id="showFlow" style="height:1500px;  padding:10px; width:17px; cursor:pointer; background:#99AFC4; te">点击显示弹出层?</p>
</body>
</html>
ie6已经可以不用JS控制了！CSS可以！http://www.ok22.org/你可以用IE6测试！关掉弹出窗口。左上角会有一个层不会有移动的感觉！