在框架左边实现点击菜单弹出子菜单

时间：2015-03-10 00:04:42 阅读：186 评论：0 收藏：0 [点我收藏+]

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<html>

<head>
<title>index</title>
<link type="text/css" rel="stylesheet" href="css/middle-left.css" />
<script language = "javascript" src="js/middle-left.js"></script>
</head>

<body>
<div class="maindiv" state="0">
<div class="topItem" classOut="topItem" classOver="topItemOver" onMouseOver="Init(this);" >网站主页</div>
<div class="dropMenu" >
 <div class="subMenu" state="0">
  <span class="subItem" classOut="subItem" classOver="subItemOver"><a href="http://www.cnblogs.com/cdlinux/">主页1</a></span><br>

  <span class="subItem" classOut="subItem" classOver="subItemOver"><a href="http://www.cnblogs.com/cdlinux/">主页2</a></span><br>

  <span class="subItem" classOut="subItem" classOver="subItemOver"><a href="http://www.cnblogs.com/cdlinux/">主页3</a></span><br>

  <span class="subItem" classOut="subItem" classOver="subItemOver"><a href="http://www.cnblogs.com/cdlinux/">主页4</a></span><br>

  <span class="subItem" classOut="subItem" classOver="subItemOver"><a href="http://www.cnblogs.com/cdlinux/">主页5</a></span><br>
 </div>
</div>
</div>
<!--完成，后面只是重复-->
</body>
</html>

js文件代码

var TIMER_SLIDE = null;
var OBJ_SLIDE;
var OBJ_VIEW;
var PIX_SLIDE = 10; //this is the amount of slide/DELAY_SLIDE
var NEW_PIX_VAL;
var DELAY_SLIDE = 30; //this is the time between each call to slide
var DIV_HEIGHT = 22; //value irrelevant
var SUB_MENU_NUM =0;
var RE_INIT_OBJ = null;
var bMenu = document.getElementById("curMenu");
var MainDiv,SubDiv

document.write(‘<div id="tempcontainer" class="mainDiv" style="visibility: hidden; position: absolute"></div>‘)
function Init(objDiv)
{
    if (TIMER_SLIDE == null)
    {
        SUB_MENU_NUM = 0;
        MainDiv = objDiv.parentNode;
        SubDiv =  MainDiv.getElementsByTagName("DIV").item(0);
        SubDiv.onclick = SetSlide;
        OBJ_SLIDE = MainDiv.getElementsByTagName("DIV").item(1)
        OBJ_VIEW = OBJ_SLIDE.getElementsByTagName("DIV").item(0);
    document.getElementById("tempcontainer").innerHTML=MainDiv.getElementsByTagName("DIV").item(2).innerHTML //DD added code
    DIV_HEIGHT=document.getElementById("tempcontainer").offsetHeight //DD added code
        for (i=0;i<OBJ_VIEW.childNodes.length;i++)
        {
            if (OBJ_VIEW.childNodes.item(i).tagName == "SPAN")
            {
                SUB_MENU_NUM ++;
                OBJ_VIEW.childNodes.item(i).onmouseover= ChangeStyle;
                OBJ_VIEW.childNodes.item(i).onmouseout= ChangeStyle;
            }
        }
              NEW_PIX_VAL = parseInt(MainDiv.getAttribute("state"));
    }
}
function SetSlide()
{
   if (window.TIMER_SLIDE) clearInterval(TIMER_SLIDE) //DD added code
      if (TIMER_SLIDE == null && this.parentNode == MainDiv)
            TIMER_SLIDE = setInterval(‘RunSlide()‘, DELAY_SLIDE);
      else
      {
          RE_INIT_OBJ = this;
          setTimeout(‘ReInit()‘, 200);
      }
}
function ReInit(obj)
{
    Init(RE_INIT_OBJ);
    TIMER_SLIDE = setInterval(‘RunSlide()‘, DELAY_SLIDE);
    RE_INIT_OBJ = null;
}
function RunSlide()
{
    if (OBJ_VIEW.getAttribute("state") == 0)
    {
        NEW_PIX_VAL += PIX_SLIDE;
        OBJ_SLIDE.style.height = NEW_PIX_VAL;
        if (NEW_PIX_VAL >= DIV_HEIGHT) //DD modified code
        {
            clearInterval(TIMER_SLIDE);
            TIMER_SLIDE = null;
            OBJ_VIEW.style.display = ‘inline‘;
            OBJ_VIEW.setAttribute("state","1")
            MainDiv.setAttribute("state",NEW_PIX_VAL);
        }
    } else
    {
        OBJ_VIEW.style.display = ‘none‘;
        NEW_PIX_VAL -= PIX_SLIDE;
        if(NEW_PIX_VAL > 0)OBJ_SLIDE.style.height = NEW_PIX_VAL;
        if (NEW_PIX_VAL <= 0)
        {
            NEW_PIX_VAL = 0;
            OBJ_SLIDE.style.height = NEW_PIX_VAL
            clearInterval(TIMER_SLIDE);
            TIMER_SLIDE = null;
            OBJ_VIEW.setAttribute("state","0")
            MainDiv.setAttribute("state",NEW_PIX_VAL);
        }
    }
}
function ChangeStyle()
{
    if (this.className == this.getAttribute("classOut"))
        this.className = this.getAttribute("classOver");
    else
        this.className = this.getAttribute("classOut");
}

cs代码

.maindiv
{
  width:160px;
}
.topItem
{
  width:160px;
  height:22px;
  cursor:pointer;
  background:#467BF2;
  text-decoration:none;
  color:white;
  font-weight:bold;
  font-family:"GOTHIC";
}
.dropMenu
{
  background:#D9D9D9;
  border-top:1px solid #467BF2;
  border-left:1px solid #92B1F8;
  border-right:1px solid #92B1F8;
  border-bottom:1px solid #92B1F8;
}
.subMenu
{
   display:none;
}
.subItem
{
   padding-left:5px;
   cursor:pointer;
   font-weight:bold;
   text-decoration:none;
   color:black;
}
.subItem a
{
   text-decoration:none;
   color:black;
}
.subItemOver
{
   cursor:pointer;
   color:blue;
   text-decoration:underline;
   font-weight:bold;
   padding-left:5px;
}
.subItemOver  a
{
   color:blue;
}
.drop
{
   border-left:1px solid black;
   border-right:1px solid black;
}

在框架左边实现点击菜单弹出子菜单

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原文地址：http://www.cnblogs.com/cdlinux/p/4324821.html

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