下面是调用代码

<script LANGUAGE="javascript" >
 <!--
 addMenuSys(0,"余额换购区","/index.jsp");
 addMenuSys(1,'5-10元&nbsp;&nbsp;&nbsp;&nbsp;',"/1.jsp");
 addMenuSys(1,'10-50元&nbsp;&nbsp;&nbsp;','2.jsp');  addMenuSys(1,'10-50元&nbsp;&nbsp;&nbsp;','3.jsp');  endMenu();
 //-->
 </script>这是ＪＳ代码。var lastSubMenu=""
var MenuTags="";
var toolBarTarget="_parent";
var _MenuSarator="";
function showSubMenu(obj)
{
ToolbarMenu=obj;
for (var i=0;i<spMenu.length;i++){
if (obj==spMenu[i]){
if (lastSubMenu!="") lastSubMenu.style.display="none";
lastSubMenu=spSubMenu[i];
if(lastSubMenu.innerHTML!=""){
lastSubMenu.style.top=obj.style.top+15;
lastSubMenu.style.left=-obj.style.width + 5;
lastSubMenu.style.backgroundColor=ToolbarMenu.style.backgroundColor;
lastSubMenu.style.display="";
y=obj.style.top+obj.style.offsetHeight;
x=obj.style.left;//+obj.style.offsetHeight;
hideElement("select",lastSubMenu)
}
}
}
event.cancelBubble=true;
}
function hideSubMenu(obj){
if (lastSubMenu!="") lastSubMenu.style.display="none";
showElement("select",lastSubMenu)
}
function addMenu(MenuDisplayStr, MenuURLStr)
{
if (MenuTags!=""){;//close with </span>
 MenuTags+="</span></span>"
 MenuTags+='<span id=spMenu>'+'|&nbsp;'+_MenuSarator;
}else{
 MenuTags+='<span id=spMenu>'
}
MenuTags+='<a href="'+MenuURLStr+'"  class=menu  target="'+toolBarTarget+'">'+'<span style=\"font-size:14px;\">'+MenuDisplayStr+'</span>'+'</a><span id=spSubMenu STYLE="display:none;">';
if (_MenuSarator=="")_MenuSarator="";
}
function addSubMenu(SubMenuStr, SubMenuURLStr)
{
MenuTags+='<nobr><a id=spSubMenuItem href="'+SubMenuURLStr+'" class=menusub target="'+toolBarTarget+'" style="width:100%">'+SubMenuStr+'</a></nobr><br>' ;
}
function endMenu(){
MenuTags+="</span></span>"
//make spMenulength>0
MenuTags+='<span id=spMenu style="display:none;" ><span id=spSubMenu STYLE="display:none;"></span></span>'
document.write(MenuTags);
}
function ylhome(){
window.navigate('/index.jsp');
}
function addMenuSys(ptypeid,menuname,menuurl)
{
if(ptypeid==0){
 addMenu(menuname,menuurl);
}else
{
 addSubMenu(menuname,menuurl);
}
}function hideElement(elmID,objMenu)
{
 var objMenuLeft   = objMenu.offsetLeft;
 var objMenuTop    = objMenu.offsetTop;
 var objMenuWidth  = objMenu.offsetWidth;
 var objMenuHeight    = objMenu.offsetHeight;
 var objMenuParent = objMenu.offsetParent;
  objMenuLeft  += objMenuParent.offsetLeft;
  objMenuTop   += objMenuParent.offsetTop;
  objMenuParent = objMenuParent.offsetParent;
for (i = 0; i < document.all.tags(elmID).length; i++)
{
 obj = document.all.tags(elmID)[i];
 if (! obj || ! obj.offsetParent)
  continue;  
 // Find the element's offsetTop and offsetLeft relative to the BODY tag.
 var objLeft   = obj.offsetLeft;
 var objTop    = obj.offsetTop;
 var objWidth   = obj.offsetWidth;
 var objHeight    = obj.offsetHeight;
 var objParent = obj.offsetParent;
 while (objParent.tagName.toUpperCase() != "BODY")
 {
  objLeft  += objParent.offsetLeft;
  objTop   += objParent.offsetTop;
  objParent = objParent.offsetParent;
 }
 if (objTop>(objMenuTop+objMenuHeight))  
 ;  
 else if (objLeft>(objMenuLeft+objMenuWidth))
 ;
 else if ((objLeft+objWidth)<objMenuLeft)
 ;
 else
 {
  if (obj.style.visibility!=null)
   obj.oldvisibility=obj.style.visibility;
  else
   obj.oldvisibility="";  
 obj.style.visibility = "hidden";
 }
}
}
function showElement(elmID,objMenu)
{
for (i = 0; i < document.all.tags(elmID).length; i++)
{
 obj = document.all.tags(elmID)[i];
 if (! obj || ! obj.offsetParent)
  continue;
 if (obj.oldvisibility!=null)
 obj.style.visibility = obj.oldvisibility;
}
}

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