Backend left management menu code implemented by js_javascript skills-JS Tutorial-php.cn

The example in this article describes the background left management menu code implemented in js. Share it with everyone for your reference. The details are as follows:
This is a perfect backend left management menu. In terms of style, it seems to be made by professionals. The style is fresh and the operation is practical. It is most suitable to be used in WEB management systems or in website backend management. .
The screenshot of the running effect is as follows:
The online demo address is as follows:
http://demo.jb51.net/js/2015/js-left-main-menu-style-codes/
The specific code is as follows:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>后台左侧菜单<HEAD>
<META http-equiv=Content-Type content="text/html; charset=gb2312">
<style>
BODY {
 MARGIN: 0px
}
P {
 MARGIN: 0px
}
BODY {
 COLOR: #000; BACKGROUND-COLOR: #fff
}
BODY {
 FONT-SIZE: 12px; LINE-HEIGHT: 150%; FONT-FAMILY: "Verdana", "Arial", "Helvetica", "sans-serif"
}
TABLE {
 FONT-SIZE: 12px; LINE-HEIGHT: 150%; FONT-FAMILY: "Verdana", "Arial", "Helvetica", "sans-serif"
}
INPUT {
 FONT-SIZE: 12px; FONT-FAMILY: "Verdana", "Arial", "Helvetica", "sans-serif"
}
SELECT {
 FONT-SIZE: 12px; FONT-FAMILY: "Verdana", "Arial", "Helvetica", "sans-serif"
}
TEXTAREA {
 FONT-SIZE: 12px; FONT-FAMILY: "Verdana", "Arial", "Helvetica", "sans-serif"
}
A:link {
 COLOR: #036; TEXT-DECORATION: none
}
A:visited {
 COLOR: #036; TEXT-DECORATION: none
}
A:hover {
 COLOR: #f60; TEXT-DECORATION: underline
}
A.menuChild:link {
 COLOR: #036; TEXT-DECORATION: none
}
A.menuChild:visited {
 COLOR: #036; TEXT-DECORATION: none
}
A.menuChild:hover {
 COLOR: #f60; TEXT-DECORATION: underline
}
A.menuParent:link {
 COLOR: #000; TEXT-DECORATION: none
}
A.menuParent:visited {
 COLOR: #000; TEXT-DECORATION: none
}
A.menuParent:hover {
 COLOR: #f60; TEXT-DECORATION: none
}
TABLE.position {
 WIDTH: 100%
}
TR.position {
 HEIGHT: 25px; BACKGROUND-COLOR: #f4f7fc
}
TD.position {
 BORDER-RIGHT: #adceff 1px solid; PADDING-LEFT: 20px; BORDER-BOTTOM: #adceff 1px solid
}
TABLE.listTable {
 WIDTH: 98%; BACKGROUND-COLOR: #b1ceee
}
TR.listHeaderTr {
 FONT-WEIGHT: bold; HEIGHT: 25px; BACKGROUND-COLOR: #ebf4fd; TEXT-ALIGN: center
}
TR.listTr {
 HEIGHT: 25px; BACKGROUND-COLOR: #fff; TEXT-ALIGN: center
}
TR.listAlternatingTr {
 HEIGHT: 25px; BACKGROUND-COLOR: #fffdf0; TEXT-ALIGN: center
}
TR.listFooterTr {
 HEIGHT: 30px; BACKGROUND-COLOR: #ebf4fd; TEXT-ALIGN: center
}
TABLE.editTable {
 WIDTH: 98%; BACKGROUND-COLOR: #b1ceee
}
TR.editHeaderTr {
 HEIGHT: 25px; BACKGROUND-COLOR: #ebf4fd
}
TD.editHeaderTd {
 PADDING-LEFT: 50px; FONT-WEIGHT: bold
}
TR.editTr {
 HEIGHT: 30px
}
TD.editLeftTd {
 WIDTH: 150px; BACKGROUND-COLOR: #fffdf0; TEXT-ALIGN: center
}
TD.editRightTd {
 PADDING-LEFT: 10px; BACKGROUND-COLOR: #fff
}
TR.editFooterTr {
 HEIGHT: 40px; BACKGROUND-COLOR: #ebf4fd
}
TD.editFooterTd {
 PADDING-LEFT: 150px
}
</style>
<SCRIPT language=javascript>
 function expand(el)
 {
  childObj = document.getElementById("child" + el);
  if (childObj.style.display == 'none')
  {
   childObj.style.display = 'block';
  }
  else
  {
   childObj.style.display = 'none';
  }
  return;
 }
</SCRIPT>
</HEAD>
<BODY>
<TABLE height="100%" cellSpacing=0 cellPadding=0 width=170 
background=images/menu_bg.jpg border=0>
 <TR>
 <TD vAlign=top align=middle>
 <TABLE cellSpacing=0 cellPadding=0 width="100%" border=0>
 <TR>
  <TD height=10></TD></TR></TABLE>
 <TABLE cellSpacing=0 cellPadding=0 width=150 border=0>
 <TR height=22>
  <TD style="PADDING-LEFT: 30px" background=images/menu_bt.jpg><A 
  class=menuParent onclick=expand(1) 
  href="javascript:void(0);">关于我们</A></TD></TR>
 <TR height=4>
  <TD></TD></TR></TABLE>
 <TABLE id=child1 style="DISPLAY: none" cellSpacing=0 cellPadding=0 
 width=150 border=0>
 <TR height=20>
  <TD align=middle width=30><IMG height=9 
  src="images/menu_icon.gif" width=9></TD>
  <TD><A class=menuChild 
  href="#" 
  target=main>公司简介</A></TD></TR>
 <TR height=20>
  <TD align=middle width=30><IMG height=9 
  src="images/menu_icon.gif" width=9></TD>
  <TD><A class=menuChild 
  href="#" 
  target=main>荣誉资质</A></TD></TR>
 <TR height=20>
  <TD align=middle width=30><IMG height=9 
  src="images/menu_icon.gif" width=9></TD>
  <TD><A class=menuChild 
  href="#" 
  target=main>分类管理</A></TD></TR>
 <TR height=20>
  <TD align=middle width=30><IMG height=9 
  src="images/menu_icon.gif" width=9></TD>
  <TD><A class=menuChild 
  href="#" 
  target=main>子类管理</A></TD></TR>
 <TR height=4>
  <TD colSpan=2></TD></TR></TABLE>
 <TABLE cellSpacing=0 cellPadding=0 width=150 border=0>
 <TR height=22>
  <TD style="PADDING-LEFT: 30px" background=images/menu_bt.jpg><A 
  class=menuParent onclick=expand(2) 
  href="javascript:void(0);">新闻中心</A></TD></TR>
 <TR height=4>
  <TD></TD></TR></TABLE>
 <TABLE id=child2 style="DISPLAY: none" cellSpacing=0 cellPadding=0 
 width=150 border=0>
 <TR height=20>
  <TD align=middle width=30><IMG height=9 
  src="images/menu_icon.gif" width=9></TD>
  <TD><A class=menuChild 
  href="#" 
  target=main>公司新闻</A></TD></TR>
 <TR height=20>
  <TD align=middle width=30><IMG height=9 
  src="images/menu_icon.gif" width=9></TD>
  <TD><A class=menuChild 
  href="#" 
  target=main>分类管理</A></TD></TR>
 <TR height=20>
  <TD align=middle width=30><IMG height=9 
  src="images/menu_icon.gif" width=9></TD>
  <TD><A class=menuChild 
  href="#" 
  target=main>子类管理</A></TD></TR>
 <TR height=4>
  <TD colSpan=2></TD></TR></TABLE>
 <TABLE cellSpacing=0 cellPadding=0 width=150 border=0>
 <TR height=22>
  <TD style="PADDING-LEFT: 30px" background=images/menu_bt.jpg><A 
  class=menuParent onclick=expand(3) 
  href="javascript:void(0);">产品中心</A></TD></TR>
 <TR height=4>
  <TD></TD></TR></TABLE>
 <TABLE id=child3 style="DISPLAY: none" cellSpacing=0 cellPadding=0 
 width=150 border=0>
 <TR height=20>
  <TD align=middle width=30><IMG height=9 
  src="images/menu_icon.gif" width=9></TD>
  <TD><A class=menuChild 
  href="#" 
  target=main>产品展示</A></TD></TR>
 <TR height=20>
  <TD align=middle width=30><IMG height=9 
  src="images/menu_icon.gif" width=9></TD>
  <TD><A class=menuChild 
  href="#" 
  target=main>最新产品</A></TD></TR>
 <TR height=20>
  <TD align=middle width=30><IMG height=9 
  src="images/menu_icon.gif" width=9></TD>
  <TD><A class=menuChild 
  href="#" 
  target=main>分类管理</A></TD></TR>
 <TR height=20>
  <TD align=middle width=30><IMG height=9 
  src="images/menu_icon.gif" width=9></TD>
  <TD><A class=menuChild 
  href="#" 
  target=main>子类管理</A></TD></TR>
 <TR height=4>
  <TD colSpan=2></TD></TR></TABLE>
 <TABLE cellSpacing=0 cellPadding=0 width=150 border=0>
 <TR height=22>
  <TD style="PADDING-LEFT: 30px" background=images/menu_bt.jpg><A 
  class=menuParent onclick=expand(4) 
  href="javascript:void(0);">客户服务</A></TD></TR>
 <TR height=4>
  <TD></TD></TR></TABLE>
 <TABLE id=child4 style="DISPLAY: none" cellSpacing=0 cellPadding=0 
 width=150 border=0>
 <TR height=20>
  <TD align=middle width=30><IMG height=9 
  src="images/menu_icon.gif" width=9></TD>
  <TD><A class=menuChild 
  href="#" 
  target=main>客户服务</A></TD></TR>
 <TR height=20>
  <TD align=middle width=30><IMG height=9 
  src="images/menu_icon.gif" width=9></TD>
  <TD><A class=menuChild 
  href="#" 
  target=main>分类管理</A></TD></TR>
 <TR height=20>
  <TD align=middle width=30><IMG height=9 
  src="images/menu_icon.gif" width=9></TD>
  <TD><A class=menuChild 
  href="#" 
  target=main>子类管理</A></TD></TR>
 <TR height=4>
  <TD colSpan=2></TD></TR></TABLE>
 <TABLE cellSpacing=0 cellPadding=0 width=150 border=0>
 <TR height=22>
  <TD style="PADDING-LEFT: 30px" background=images/menu_bt.jpg><A 
  class=menuParent onclick=expand(5) 
  href="javascript:void(0);">经典案例</A></TD></TR>
 <TR height=4>
  <TD></TD></TR></TABLE>
 <TABLE id=child5 style="DISPLAY: none" cellSpacing=0 cellPadding=0 
 width=150 border=0>
 <TR height=20>
  <TD align=middle width=30><IMG height=9 
  src="images/menu_icon.gif" width=9></TD>
  <TD><A class=menuChild 
  href="#" 
  target=main>分类管理</A></TD></TR>
 <TR height=20>
  <TD align=middle width=30><IMG height=9 
  src="images/menu_icon.gif" width=9></TD>
  <TD><A class=menuChild 
  href="#" 
  target=main>子类管理</A></TD></TR>
 <TR height=4>
  <TD colSpan=2></TD></TR></TABLE>
 <TABLE cellSpacing=0 cellPadding=0 width=150 border=0>
 <TR height=22>
  <TD style="PADDING-LEFT: 30px" background=images/menu_bt.jpg><A 
  class=menuParent onclick=expand(6) 
  href="javascript:void(0);">高级管理</A></TD></TR>
 <TR height=4>
  <TD></TD></TR></TABLE>
 <TABLE id=child6 style="DISPLAY: none" cellSpacing=0 cellPadding=0 
 width=150 border=0>
 <TR height=20>
  <TD align=middle width=30><IMG height=9 
  src="images/menu_icon.gif" width=9></TD>
  <TD><A class=menuChild 
  href="#" 
  target=main>广告管理</A></TD></TR>
 <TR height=20>
  <TD align=middle width=30><IMG height=9 
  src="images/menu_icon.gif" width=9></TD>
  <TD><A class=menuChild 
  href="#" 
  target=main>访问统计</A></TD></TR>
 <TR height=20>
  <TD align=middle width=30><IMG height=9 
  src="images/menu_icon.gif" width=9></TD>
  <TD><A class=menuChild 
  href="#" 
  target=main>邮件发送设置</A></TD></TR>
 <TR height=20>
  <TD align=middle width=30><IMG height=9 
  src="images/menu_icon.gif" width=9></TD>
  <TD><A class=menuChild 
  href="#" 
  target=main>联系部门</A></TD></TR>
 <TR height=20>
  <TD align=middle width=30><IMG height=9 
  src="images/menu_icon.gif" width=9></TD>
  <TD><A class=menuChild 
  href="#" 
  target=main>用户留言</A></TD></TR>
 <TR height=20>
  <TD align=middle width=30><IMG height=9 
  src="images/menu_icon.gif" width=9></TD>
  <TD><A class=menuChild 
  href="#" 
  target=main>招聘职位</A></TD></TR>
 <TR height=20>
  <TD align=middle width=30><IMG height=9 
  src="images/menu_icon.gif" width=9></TD>
  <TD><A class=menuChild 
  href="#" 
  target=main>应聘人员</A></TD></TR>
 <TR height=20>
  <TD align=middle width=30><IMG height=9 
  src="images/menu_icon.gif" width=9></TD>
  <TD><A class=menuChild 
  href="#" 
  target=main>留言簿</A></TD></TR>
 <TR height=20>
  <TD align=middle width=30><IMG height=9 
  src="images/menu_icon.gif" width=9></TD>
  <TD><A class=menuChild 
  href="#" 
  target=main>产品订购</A></TD></TR>
 <TR height=20>
  <TD align=middle width=30><IMG height=9 
  src="images/menu_icon.gif" width=9></TD>
  <TD><A class=menuChild 
  href="#" 
  target=main>链接管理</A></TD></TR>
 <TR height=20>
  <TD align=middle width=30><IMG height=9 
  src="images/menu_icon.gif" width=9></TD>
  <TD><A class=menuChild 
  href="#" 
  target=main>文件管理</A></TD></TR>
 <TR height=20>
  <TD align=middle width=30><IMG height=9 
  src="images/menu_icon.gif" width=9></TD>
  <TD><A class=menuChild 
  href="#" 
  target=main>信息转移</A></TD></TR>
 <TR height=4>
  <TD colSpan=2></TD></TR></TABLE>
 <TABLE cellSpacing=0 cellPadding=0 width=150 border=0>
 <TR height=22>
  <TD style="PADDING-LEFT: 30px" background=images/menu_bt.jpg><A 
  class=menuParent onclick=expand(7) 
  href="javascript:void(0);">系统管理</A></TD></TR>
 <TR height=4>
  <TD></TD></TR></TABLE>
 <TABLE id=child7 style="DISPLAY: none" cellSpacing=0 cellPadding=0 
 width=150 border=0>
 <TR height=20>
  <TD align=middle width=30><IMG height=9 
  src="images/menu_icon.gif" width=9></TD>
  <TD><A class=menuChild 
  href="#" 
  target=main>基本设置</A></TD></TR>
 <TR height=20>
  <TD align=middle width=30><IMG height=9 
  src="images/menu_icon.gif" width=9></TD>
  <TD><A class=menuChild 
  href="#" 
  target=main>样式管理</A></TD></TR>
 <TR height=20>
  <TD align=middle width=30><IMG height=9 
  src="images/menu_icon.gif" width=9></TD>
  <TD><A class=menuChild 
  href="#" 
  target=main>栏目管理</A></TD></TR>
 <TR height=20>
  <TD align=middle width=30><IMG height=9 
  src="images/menu_icon.gif" width=9></TD>
  <TD><A class=menuChild 
  href="#" 
  target=main>功能管理</A></TD></TR>
 <TR height=20>
  <TD align=middle width=30><IMG height=9 
  src="images/menu_icon.gif" width=9></TD>
  <TD><A class=menuChild 
  href="#" 
  target=main>菜单管理</A></TD></TR>
 <TR height=20>
  <TD align=middle width=30><IMG height=9 
  src="images/menu_icon.gif" width=9></TD>
  <TD><A class=menuChild 
  href="#" 
  target=main>首页设置</A></TD></TR>
 <TR height=20>
  <TD align=middle width=30><IMG height=9 
  src="images/menu_icon.gif" width=9></TD>
  <TD><A class=menuChild 
  href="#" 
  target=main>管理员列表</A></TD></TR>
 <TR height=4>
  <TD colSpan=2></TD></TR></TABLE>
 <TABLE cellSpacing=0 cellPadding=0 width=150 border=0>
 <TR height=22>
  <TD style="PADDING-LEFT: 30px" background=images/menu_bt.jpg><A 
  class=menuParent onclick=expand(0) 
  href="javascript:void(0);">个人管理</A></TD></TR>
 <TR height=4>
  <TD></TD></TR></TABLE>
 <TABLE id=child0 style="DISPLAY: none" cellSpacing=0 cellPadding=0 
 width=150 border=0>
 <TR height=20>
  <TD align=middle width=30><IMG height=9 
  src="images/menu_icon.gif" width=9></TD>
  <TD><A class=menuChild 
  href="#" 
  target=main>修改口令</A></TD></TR>
 <TR height=20>
  <TD align=middle width=30><IMG height=9 
  src="images/menu_icon.gif" width=9></TD>
  <TD><A class=menuChild 
  onclick="if (confirm('确定要退出吗？')) return true; else return false;" 
  href="http://www.jb51.net" 
  target=_top>退出系统</A></TD></TR></TABLE></TD>
 <TD width=1 bgColor=#d1e6f7></TD></TR></TABLE></BODY></HTML>
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I hope this article will be helpful to everyone’s JavaScript programming.