Cascading menu

This is a cascading style menu.

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Entire Page Code

<html>
<head>
<title>Cascading Menu</title>
</head>
<body>
<script language="JavaScript">
function goToURL() { history.go(-1); }
</script>
  <style>
  .menu
  {
   background-color:#2B6Ebb;
   border:1px solid darkblue;
   width:150px;
   font-size:11px;
   font-family:verdana;
   position: absolute;
   font:bold;
   color: #ffffff;
   cursor: hand;
  }
  .item_panel
  {
    width:150px;
    border-left:1px solid darkblue;
    border-right:1px solid darkblue;
    clip:rect(0,150,0,0);
    position:absolute;
  }
  .item_panel a
  {
   text-decoration:none;
   color:black;
   cursor:hand;
  }
  .item
  {
   background-color: #E9F0F8;
   width: 148px;
   font-size: 10px;
   font-family: verdana;
   
  }
  </style>
  <script language="JavaScript">  
  var height = 20; // height of the menu headers
  var iheight = 15; // height of the menu_items  
  var bgc = "#E9F0F8" // background color of the item
  var tc = "black" // text color of the item  
  var over_bgc = "white";
  var over_tc = "#004891";  
  var speed = 0;
  var timerID = "";
  var N = (document.all) ? 0 : 1;
  var width = 152;
  var self_menu = new Array();
function write_menu()
{
  smc = 0; // count the position of the self_menu
  document.write("<div style='position:absolute'>");
  mn = 0;
  mni = 1;
  start = -1;  
  for(i=0;i<Link.length;i++)
  {
   la = Link[i].split("|");
   if (la[0] == "0")
   {
    if(start == 0) 
     {
      document.write("</div>");
      h =  csmc * iheight;
      tmn = mn; //-h
      self_menu[smc] = new Array(tmn,h,0,-2);
      smc++;
      mn--;
     }
     csmc = 0;
    document.write("<div class='menu' style='top:"+mn+";height:"+height+"' id='down"+smc+"' onclick='pull_down("+smc+","+mni+")'> "+ la[1] + "</div>");
    self_menu[smc] = new Array(mn,height,0,mni);
    smc++;
    mni++;
    mn+=height;
    start = 1;
   }
   else
   {
    if(start == 1) 
     {
      if(N)mn+=2;
       document.write("<div class='item_panel' id='down"+smc+"' style='top:"+mn+"'>");
       start = 0;
     }
    
    document.write("<a href='"+la[2]+"'");
    if (la[3] != "") document.write(" target='" + la[3] + "' ");
    document.write("><div class='item' id='d"+i+"' style='height:"+iheight);
    if (N) document.write(";width:150");
    document.write("' onmouseover='color(this.id)' onmouseout='uncolor(this.id)'>  "+ la[1] + "</div></a>");
    csmc++;
   }
  }
  if (start == 0) 
   {
     document.write("</div>");
     h =  csmc * iheight;
     tmn = mn + 5; //-h
     self_menu[smc] = new Array(tmn,h,0);
     name = "down" + (self_menu.length-1);
     obj = document.getElementById(name);
     obj.style.borderBottomColor = "darkblue";
     obj.style.borderBottomWidth = 1;
     obj.style.borderBottomStyle = "solid";
   }
  document.write("</div>");}
function color(obj)
{
 document.getElementById(obj).style.backgroundColor = over_bgc;
 document.getElementById(obj).style.color = over_tc
}

function uncolor(obj)
{
 document.getElementById(obj).style.backgroundColor = bgc;
 document.getElementById(obj).style.color = tc
}

function pull_down(nr,c)
{
 if (timerID == "")
 {
 to = self_menu[nr+1][1]
 begin = nr + 2;
 if (timerID != "") clearTimeout(timerID);
 if (self_menu[nr+1][2] == 0)
 {
  self_menu[nr+1][2] = 1;
  if(nr == self_menu.length-2) {to++;}
  epull_down(begin,to,0);
 }
 else
 {
  to = 0;
  self_menu[nr+1][2] = 0;
  name = "down"+(nr+2);
  open_item = 0;
  for(i=0;i<nr;i++)
  {
   if(self_menu[i][2] == 1) 
    {open_item += self_menu[i][1];
    }
  }
  if (N == false) {open_item-= (c*1)};
  if (nr== self_menu.length-2) {val = self_menu[self_menu.length-1][1];to=-1;}
  else  val = parseInt(document.getElementById(name).style.top) -(open_item)-(c*height);
  epull_up(begin,to,val);
 }
 }
}

function epull_down(nr,to,nowv)
{
 name = "down" + (nr-1);
 obj = document.getElementById(name).style.clip = "rect(0,"+width+","+(nowv+1)+",0)";
 for (i=nr;i<self_menu.length;i++)
 {
  name = "down" + i;
  obj = document.getElementById(name);
  obj.style.top = parseInt(obj.style.top)+1;
 }
 nowv++;
 if(nowv < to) timerID = setTimeout("epull_down("+nr+","+to+","+nowv+")",speed);
 else timerID = "";
}

function epull_up(nr,to,nowv)
{
 name = "down" + (nr-1);
 obj = document.getElementById(name).style.clip = "rect(0,"+width+","+nowv+",0)";
 for (i=nr;i<self_menu.length;i++)
 {
  name = "down" + i;
  obj = document.getElementById(name);
  obj.style.top = parseInt(obj.style.top)-1;
 }
 nowv--;
 if(nowv > to) timerID = setTimeout("epull_up("+nr+","+to+","+nowv+")",speed);
 else timerID = "";
}

function startup(nr)
{
 write_menu();
 if (nr != 0)
 {
 for(i=0;i<self_menu.length;i++)
 {
  if(self_menu[i][3] == nr) pull_down(i,nr)
  i==self_menu.length;
 }
 }
}  
</script>
<table width=150><tr><td>
  <script language="JavaScript">
      //Link[nr] = "position [0 is menu/1 is item],Link name,url,target (blank|top|frame_name)"
  var Link = new Array();
  Link[0] = "0|Home";
  Link[1] = "1|Home|http://www.bravenet.com|";
  Link[2] = "1|Web Hosting|http://www.bravenet.com/webhosting/index.php|";
  Link[3] = "1|Web Tools|http://www.bravenet.com/webtools/index.php|";
  Link[4] = "1|Developer Resources|http://www.bravenet.com|";
  Link[5] = "0|Access";
  Link[6] = "1|Login|http://www.bravenet.com/signup/tos.php|";
  Link[7] = "1|Lost Password|http://www.bravenet.com/global/lostpassword.php|"
  Link[8] = "0|Help";
  Link[9] = "1|Help|http://www.bravenet.com/help/index.php|";
  Link[10] = "1|Copy/Paste|http://www.bravenet.com/help/copypaste.php|";
  Link[11] = "0|Advertise";
  Link[12] = "1|your ad here|";
  startup(4);
  </script>
  </td>
 </tr>
</table><br><br><br><br><br><br>
</body>
</html>

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