类似QQ的竖型目录菜单-JS特效-爱易网页

类似QQ的竖型目录菜单

日期：2014-05-18　浏览次数：20304 次

以下是程序代码

<html>
<head>
<title>类似QQ的竖型目录菜单，aiyiweb整理收集。</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<script language="JavaScript">
var titleHeight = 22;    //标题的高度
var bodyHeight = 160;    //菜单内容项的高度
var groupcount = 4;      //组的个数
var step = 3;          //移动速度
//显示菜单的内容
function showDiv(obj1, obj2)
{
    //以下循环为改变标题的背景颜色
    for(i=0;i<document.all.tags("td").length;i++)
    {
      if (document.all.tags("td")[i].className == 'headtd')
       document.all.tags("td")[i].bgColor = '#cccc66';
    }
    obj2.bgColor = '#cccc66';
    moveme(obj1);
}
//移动菜单内容
function moveme(obj)
{
    idnumber = parseInt(obj.id.substr(4));
    objtop = titleHeight * (idnumber - 1);
    objbuttom = bodyHeight + titleHeight * (idnumber - 2);
    currenttop = parseInt(obj.style.top);
    if (currenttop >= objbuttom)
    {
      //检验出每一个应该向上移动的层
      countid = 1;
      for(i=0;i<document.all.tags("div").length;i++)
      {
       if (document.all.tags("div")[i].id == 'item'+countid+'body')
       {
        obj = document.all.tags("div")[i];
        objtop = titleHeight * (countid - 1);
        moveup(obj,objtop);
        if (countid == idnumber)
         break;
        countid++;
       }
      }
}
else if ((currenttop <= objtop) && (idnumber < groupcount))
{
  //检验出每一个应该向下移动的层
  idnumber++;
  countid = groupcount;
  for(i=document.all.tags("div").length-1;i>=0;i--)
  {
   if (document.all.tags("div")[i].id == 'item'+countid+'body')
   {
    obj = document.all.tags("div")[i];
    objbuttom = bodyHeight + titleHeight * (countid - 2);
    movedown(obj,objbuttom);
    if (countid == idnumber)
     break;
    countid--;
   }
  }
}
}
//向上移动的方法
function moveup(obj,objtop)
{
    currenttop = parseInt(obj.style.top);
    if (currenttop > objtop)
    {
      obj.style.top = currenttop - step;
      window.setTimeout('moveup('+obj.id+','+objtop+')',1)
    }
}
//向下移动的方法
function movedown(obj,objbuttom)
{
    currenttop = parseInt(obj.style.top);
    if (currenttop < objbuttom)
    {
      obj.style.top = currenttop + step;
      window.setTimeout('movedown('+obj.id+','+objbuttom+')',1)
    }
}
</script>
<style type="text/css">

</style>
</head>

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    <table width="100%" border="0" height="100%" cellpadding="2" cellspacing="0">
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        <td id="item1head" height="20" class="headtd" onclick="showDiv(item1body,this)" bgcolor="#cccc66">
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