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<!-- 把如下代码加入<body>区域中 -->
<!-- Saved From url=http://www.webjx.com/js -->
<!-- Web Design bbs url=http://www.webjx.com/bbs-->
<html>
<head>
<title>网页教学网-特效代码->>下拉菜单的导航条</title>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<SCRIPT language=JavaScript>
<!--
function MM_goToURL() { //v3.0
var i, args=MM_goToURL.arguments; document.MM_returnValue = false;
for (i=0; i<(args.length-1); i+=2) eval(args[i]+".location='"+args[i+1]+"'");
}
function JM_cc(ob){
var obj=MM_findObj(ob); if (obj) {
obj.select();js=obj.createTextRange();js.execCommand("Copy");}
}
function MM_findObj(n, d) { //v4.0
var p,i,x; if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
if(!x && document.getElementById) x=document.getElementById(n); return x;
}
//-->
</SCRIPT>
<SCRIPT language=JavaScript>
<!--
menuPrefix = 'menu'; // Prefix that all menu layers must start with
// All layers with this prefix will be treated
// as a part of the menu system.
var menuTree, mouseMenu, hideTimer, doHide;
function init() {
ie4 = (document.all)?true:false;
ns4 = (document.layers)?true:false;
document.onmousemove = mouseMove;
if (ns4) { document.captureEvents(Event.MOUSEMOVE); }
}
function expandMenu(menuContainer,subContainer,menuLeft,menuTop) {
// Hide all submenus thats's not below the current level
doHide = false;
if (menuContainer != menuTree) {
if (ie4) {
var menuLayers = document.all.tags("DIV");
for (i=0; i<menuLayers.length; i++) {
if ((menuLayers[i].id.indexOf(menuContainer) != -1) && (menuLayers[i].id != menuContainer)) {
hideObject(menuLayers[i].id);
}
}
}
else if (ns4) {
for (i=0; i<document.layers.length; i++) {
var menuLayer = document.layers[i];
if ((menuLayer.id.indexOf(menuContainer) != -1) && (menuLayer.id != menuContainer)) {
menuLayer.visibility = "hide";
}
}
}
}
// If this is item has a submenu, display it, or it it's a toplevel menu, open it
if (subContainer) {
if ((menuLeft) && (menuTop)) {
positionObject(subContainer,menuLeft,menuTop);
hideAll();
}
else {
if (ie4) {
positionObject(subContainer, document.all[menuContainer].offsetWidth + document.all[menuContainer].style.pixelLeft - 10, mouseY);
}
else {
positionObject(subContainer, document.layers[menuContainer].document.width + document.layers[menuContainer].left + 50, mouseY);
}
}
showObject(subContainer);
menuTree = subContainer;
}
}
function showObject(obj) {
if (ie4) { document.all[obj].style.visibility = "visible"; }
else if (ns4) { document.layers[obj].visibility = "show"; }
}
function hideObject(obj) {
if (ie4) { document.all[obj].style.visibility = "hidden"; }
else if (ns4) { document.layers[obj].visibility = "hide"; }
}
function positionObject(obj,x,y) {
if (ie4) {
var foo = document.all[obj].style;
foo.left = x;
foo.top = y;
}
else if (ns4) {
var foo = document.layers[obj];
foo.left = x;
foo.top = y;
}
}
function hideAll() {
if (ie4) {
var menuLayers = document.all.tags("DIV");
for (i=0; i<menuLayers.length; i++) {
if (menuLayers[i].id.indexOf(menuPrefix) != -1) {
hideObject(menuLayers[i].id);
}
}
}
else if (ns4) {
for (i=0; i<document.layers.length; i++) {
var menuLayer = document.layers[i];
if (menuLayer.id.indexOf(menuPrefix) != -1) {
hideObject(menuLayer.id);
}
}
}
}
function hideMe(hide) {
if (hide) {
if (doHide) { hideAll(); }
}
else {
doHide = true;
hideTimer = window.setTimeout("hideMe(true);", 2000);
}
}
function mouseMove(e) {
if (ie4) { mouseY = window.event.y; }
if (ns4) { mouseY = e.pageY; }
}
function itemHover(obj,src,text,style) {
if (ns4) {
var text = '<nobr><a href="' + src + '" class="' + style + '">' + text + '<\/a><\/nobr>'
obj.document.open();
obj.document.write(text);
obj.document.close();
}
}
onload = init;
//-->
</SCRIPT>
<style type=text/css>
<!--
.menu { position: absolute; left: 0; top: 2;
visibility: hidden; background: #FFFFFF;
width: 100px; margin: 0px 0px; padding: 0px 0px;
border: 1px silver solid;
overflow: visible; ; clip: rect( )}
.menu a:visited { font-family: "Tahoma"; font-size: 11px;
text-decoration: none; font-weight: normal;
color: black; background: #E2E2E2;
width: 108px; padding-left: 8px; ; line-height: 22px; border-color: #FFFFFF #666666 #333333 #999999; border-style: solid; border-top-width: 1px; border-right-width: 1px; border-bottom-width: 1px; border-left-width: 1px; clip: rect( )}
.menu a:hover { font-family: "Tahoma"; font-size: 11px;
text-decoration: none; font-weight: normal;
color: #FFFFFF; background: #009900;
width: 108px; padding-left: 8px; ; line-height: 22px; clip: rect( )}
.menu .border { border: 1px solid #F4F4F4;
border-bottom: 1px solid #808080;
border-right: 1px solid #808080; }
.menu .text { overflow: hidden;
width: 125px; height: 15px; }
.menu .arrow { overflow: hidden;
width: 15px; height: 12px;
padding-left: 5px; padding-top: 3px; }
.menu .arrow img { width: 6px; height: 7px;
border: 0px; } .menu a { font-family: "Tahoma"; font-size: 11px;
text-decoration: none; font-weight: normal;
color: black; background: #E2E2E2;
width: 108px; padding-left: 8px; ; clip: rect( ); border-color: #FFFFFF #666666 #333333 #999999; border-style: solid; border-top-width: 1px; border-right-width: 1px; border-bottom-width: 1px; border-left-width: 1px; line-height: 22px} .menu a:link { color: #000000; text-decoration: none}
.a { font-size: 12px; text-decoration: none}
a:link { color: #FFFFFF; text-decoration: none}
a:hover { text-decoration: underline}
a:visited { color: #FFFFFF; text-decoration: none}
-->
</style>
</head>
<body bgcolor="#FFFFFF" text="#000000" leftmargin="0" topmargin="0">
<table border="0" cellpadding="0" cellspacing="1" bgcolor="#333333" width="778" class="a">
<tr bgcolor="#009830" align="center" valign="bottom">
<td width="10" height="18"> </td>
<td width="74"><a href="#;" onMouseOver="expandMenu(null,'menu1',getPos(this,'Left'),getPos(this,'Top')+this.offsetHeight);" class="a" >第一项</a></td>
<td width="58"><a href="#;" onMouseOver="expandMenu(null,'menu2',getPos(this,'Left'),getPos(this,'Top')+this.offsetHeight);" class="a" >第二项</a></td>
<td width="58"><a href="#;" onMouseOver="expandMenu(null,'menu3',getPos(this,'Left'),getPos(this,'Top')+this.offsetHeight);" class="a" >第三项</a></td>
<!--可以复制上面的做出menu4 menu5 menu6....-->
<td width="40"><a href="#;" class="a" >首页</a></td>
<td width="18" height="18"> </td>
</tr>
</table>
<script language="JavaScript">
function getPos(el,sProp) {
var iPos = 0
while (el!=null) {
iPos+=el["offset" + sProp]
el = el.offsetParent
}
return iPos
}
</script>
<!-- 第一开始 -->
<div id="menu1" class="menu" onMouseOut="hideMe();" style="">
<a href="http://webjx.com" onMouseOver="expandMenu('menu1');">第一项</a><br>
<a href="#;" onMouseOver="expandMenu('menu1');">第一项</a><br>
<a href="#;" onMouseOver="expandMenu('menu1');">第一项</a><br>
<a href="#;" onMouseOver="expandMenu('menu1');">第一项</a><br>
</div>
<!-- 第二开始 -->
<div id="menu2" class="menu" onMouseOut="hideMe();">
<a href="#;" onMouseOver="expandMenu('menu2');">第二项</a><br>
<a href="#;" onMouseOver="expandMenu('menu2');">第二项</a><br>
<a href="#;" onMouseOver="expandMenu('menu2');">第二项</a><br>
<a href="#;" onMouseOver="expandMenu('menu2');">第二项</a><br>
</div>
<!-- 第三开始 -->
<div id="menu3" class="m