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多层下拉菜单

稿源：互联网 2022-04-07 14:45:25 点击： 1866 撤稿纠错

多层下拉菜单效果，可自定义下拉菜单内容。

以下讨论的是和特效下拉菜单相关的多层下拉菜单教程文章，内容是本站精心挑选整理的教程，希望对广大的网友给到帮助,下面是详细内容：

脚本代码(For Alixixi.com)如下:

脚本说明:
把如下代码加入<body>区域中
<style rel=stylesheet type=text/css>
.favMenu {
	BACKGROUND: buttonface; COLOR: windowtext; CURSOR: hand; FONT: menu
}
.favMenu DIV {
	WIDTH: 100%
}
.favMenu A {
	COLOR: windowtext; TEXT-DECORATION: none
}
.favMenu A:hover {
	COLOR: windowtext; TEXT-DECORATION: underline
}
.topFolder {
	BORDER-BOTTOM: buttonface 1px solid; BORDER-LEFT: buttonface 1px solid; BORDER-RIGHT: buttonface 1px solid; BORDER-TOP: buttonface 1px solid; PADDING-BOTTOM: 2px; PADDING-LEFT: 2px; PADDING-RIGHT: 2px; PADDING-TOP: 2px
}
.topItem {
	BORDER-BOTTOM: buttonface 1px solid; BORDER-LEFT: buttonface 1px solid; BORDER-RIGHT: buttonface 1px solid; BORDER-TOP: buttonface 1px solid; PADDING-BOTTOM: 2px; PADDING-LEFT: 2px; PADDING-RIGHT: 2px; PADDING-TOP: 2px
}
.subFolder {
	PADDING-BOTTOM: 3px; PADDING-LEFT: 3px; PADDING-RIGHT: 3px; PADDING-TOP: 3px
}
.subItem {
	PADDING-BOTTOM: 3px; PADDING-LEFT: 3px; PADDING-RIGHT: 3px; PADDING-TOP: 3px
}
.sub {
	BACKGROUND: url(http://www.alixixi.com/UploadPic/userface/no1323.jpg) buttonface; BORDER-BOTTOM: buttonhighlight 1px solid; BORDER-LEFT: buttonshadow 1px solid; BORDER-RIGHT: buttonhighlight 1px solid; DISPLAY: none; PADDING-TOP: 1px
}
.sub .sub {
	BORDER-BOTTOM: 0px; BORDER-LEFT: 0px; BORDER-RIGHT: 0px; BORDER-TOP: 0px
}
.icon {
	HEIGHT: 16px; MARGIN-RIGHT: 5px; VERTICAL-ALIGN: top; WIDTH: 16px
}
.outer {
	BACKGROUND: buttonface; BORDER-BOTTOM: buttonhighlight 1px solid; BORDER-LEFT: buttonshadow 1px solid; BORDER-RIGHT: buttonhighlight 1px solid; BORDER-TOP: buttonshadow 1px solid; PADDING-BOTTOM: 0px; PADDING-LEFT: 0px; PADDING-RIGHT: 0px; PADDING-TOP: 0px
}
.inner {
	BORDER-BOTTOM: buttonshadow 1px solid; BORDER-LEFT: buttonhighlight 1px solid; BORDER-RIGHT: buttonshadow 1px solid; BORDER-TOP: buttonhighlight 1px solid; OVERFLOW: hidden; PADDING-BOTTOM: 0px; PADDING-LEFT: 0px; PADDING-RIGHT: 0px; PADDING-TOP: 0px
}
.scrollButton {
	BACKGROUND: buttonface; BORDER-BOTTOM: buttonface 1px solid; BORDER-LEFT: buttonface 1px solid; BORDER-RIGHT: buttonface 1px solid; BORDER-TOP: buttonface 1px solid; COLOR: buttontext; CURSOR: default; DISPLAY: none; FONT-FAMILY: webdings; FONT-SIZE: 10px; HEIGHT: 16px; OVERFLOW: hidden; POSITION: absolute; TEXT-ALIGN: center; WIDTH: 50px
}
.flat {
	BORDER-BOTTOM: buttonface 1px solid; BORDER-LEFT: buttonface 1px solid; BORDER-RIGHT: buttonface 1px solid; BORDER-TOP: buttonface 1px solid; PADDING-BOTTOM: 0px; PADDING-LEFT: 0px; PADDING-RIGHT: 0px; PADDING-TOP: 0px
}
</style>
<SCRIPT type=text/javascript>
var selectedItem = null;

var targetWin;

document.onclick = handleClick;
document.onmouseover = handleOver;
document.onmouseout = handleOut;
document.onmousedown = handleDown;
document.onmouseup = handleUp;

document.write(writeSubPadding(10));  //write the stylesheet for the sub. Getting the indention right

if ((el.className == "topItem") || (el.className == "subItem")) {
		if ((el.href != null) && (el.href != "")) {
			if ((el.target == null) || (el.target == "")) {
				if (window.opener == null) {
//					alert(document.all.tags("BASE").item(0));
					if (document.all.tags("BASE").item(0) != null)
//						eval(document.all.tags("BASE").item(0).target + ".location = el.href");
						window.open(el.href, document.all.tags("BASE").item(0).target);
					else 
						window.location = el.href;					// HERE IS THE LOADING!!!
				}
				else {
					window.opener.location =  el.href;
				}
			}
			else {
				window.open(el.href, el.target);
//				eval(el.target + ".location = el.href");
			}
		}
	}
	
	var tmp  = getReal(el, "className", "favMenu");
	if (tmp.className == "favMenu") fixScroll(tmp);

}

function handleOut() {
	var fromEl = getReal(window.event.fromElement, "tagName", "DIV");
	var toEl = getReal(window.event.toElement, "tagName", "DIV");
	if (fromEl == toEl) return;
	
	el = fromEl;

if ((el.className == "topFolder") || (el.className == "topItem")) outTopItem(el);
	if ((el.className == "subFolder") || (el.className == "subItem")) outSubItem(el);
	if (el.className == "scrollButton") outscrollButton(el);
}

function handleDown() {
	el = getReal(window.event.srcElement, "tagName", "DIV");
		
	if (el.className == "scrollButton") {
		downscrollButton(el);
		var mark = Math.max(el.id.indexOf("Up"), el.id.indexOf("Down"));
		var type = el.id.substr(mark);
		var menuID = el.id.substring(0,mark);
		eval("scroll" + type + "(" + menuID + ")");
	}
}

function handleUp() {
	el = getReal(window.event.srcElement, "tagName", "DIV");
		
	if (el.className == "scrollButton") {
		upscrollButton(el);
		window.clearTimeout(scrolltimer);
	}
}

////////////////////// EVERYTHING IS HANDLED ////////////////////////////

function hide(elID) {
	var el = eval(elID);
	el.style.display = "none";
	el.parentElement.openedSub = null;
	if (el.openedSub != null) hide(el.openedSub);
}

function writeSubPadding(depth) {
	var str, str2, val;

//If you wan't to change colors do so below

function overTopItem(el) {
	with (el.style) {
		background   = "buttonface";
		borderLeft   = "1px solid buttonhighlight";
		borderRight  = "1px solid buttonshadow";
		borderTop    = "1px solid buttonhighlight";
		borderBottom = "1px solid buttonshadow";
		paddingBottom = "2px";
	}
}

function overSubItem(el) {
	el.style.textDecoration = "underline";
}

function outSubItem(el) {
	el.style.textDecoration = "none";
}

function highlightSubItem(el) {
	el.style.background = "buttonshadow";
	el.style.color      = "white"; //"highlighttext";
	selectedItem = el;
}

function restoreSubItem(el) {
	el.style.background = "url(http://www.alixixi.com/UploadPic/userface/no1323.jpg) buttonface";
	el.style.color      = "menutext";
	selectedItem = null;
}

function overscrollButton(el) {
	overTopItem(el);
	el.style.padding = "0px";
}

function outscrollButton(el) {
	outTopItem(el);
	el.style.padding = "0px";
}

function downscrollButton(el) {
	with (el.style) {
		borderRight   = "1px solid buttonhighlight";
		borderLeft  = "1px solid buttonshadow";
		borderBottom    = "1px solid buttonhighlight";
		borderTop = "1px solid buttonshadow";
	}
}

function upscrollButton(el) {
	overTopItem(el);
	el.style.padding = "0px";
}

// ...till here

////////////////////////////////////////////////////////////////////////////////////////
// Fix the scrollbars

var globalScrollContainer;	// Needed because the object is called through windwow.setTimeout
var overflowTimeout = 1;

function fixScroll(el) {
	globalScrollContainer = el;
	window.setTimeout('changeOverflow(globalScrollContainer)', overflowTimeout);
}

function changeOverflow(el) {
	if (el.offsetHeight > el.parentElement.clientHeight)
		window.setTimeout('globalScrollContainer.parentElement.style.overflow = "auto";', overflowTimeout);
	else
		window.setTimeout('globalScrollContainer.parentElement.style.overflow = "hidden";', overflowTimeout);
}
</SCRIPT>

<DIV class=outer style="HEIGHT: 280px; MARGIN: 10px; WIDTH: 180px">
<DIV class=inner style="HEIGHT: 280px; WIDTH: 180px">
<DIV class=favMenu id=aMenu>
<DIV class=topFolder id=samples><IMG class=icon height=16 
src="http://www.alixixi.com/UploadPic/userface/no1323.jpg" width=16>Samples</DIV>
<DIV class=sub id=samplesSub>
<DIV class=subItem title="(Updated: 980701)" 
href="/dhtml/favbar/fav2.shtml"></SPAN><IMG class=icon height=16 
src="http://www.alixixi.com/UploadPic/userface/no1323.jpg" width=16>Favorite Bar</DIV>
<DIV class=subItem title="(Updated: 980701)" href="/dhtml/testBlink.shtml"><IMG 
class=icon height=16 src="http://www.alixixi.com/UploadPic/userface/no1323.jpg" width=16><BLINK> Behavior 
(IE5)</DIV>
<DIV class=subItem title="(Updated: 980630)" 
href="/dhtml/genericMove.shtml"><IMG class=icon height=16 
src="http://www.alixixi.com/UploadPic/userface/no1323.jpg" width=16>genericMove</DIV>
<DIV class=subItem title="(Updated: 980628)" 
href="/dhtml/genericResize.shtml"><IMG class=icon height=16 
src="http://www.alixixi.com/UploadPic/userface/no1323.jpg" width=16>Resizeable DIV</DIV>
<DIV class=subItem title="(Updated: 980605)" 
href="/dhtml/dhtmlmenu/menu.shtml"><IMG class=icon height=16 
src="http://www.alixixi.com/UploadPic/userface/no1323.jpg" width=16>DHTML Menu</DIV>
<DIV class=subItem 
title="Uses one <TEXTAREA> and one <IFRAME> for preview. (Updated: 980318)" 
href="/dhtml/DHTMLeditor.shtml"><IMG class=icon height=16 
src="http://www.alixixi.com/UploadPic/userface/no1323.jpg" width=16>DHTML Editor</DIV>
<DIV class=subItem title="Use rich text tooltips. (Updated: Way back!)" 
href="/dhtml/tooltip/tooltip.shtml"><IMG class=icon height=16 
src="http://www.alixixi.com/UploadPic/userface/no1323.jpg" width=16>ToolTips</DIV></DIV>
<DIV class=topFolder id=docs><IMG class=icon height=16 
src="http://www.alixixi.com/UploadPic/userface/no1323.jpg" width=16>Docs</DIV>
<DIV class=sub id=docsSub>
<DIV class=subFolder id=subdocs><IMG class=icon height=16 
src="http://www.alixixi.com/UploadPic/userface/no1323.jpg" width=16>more Docs</DIV>
<DIV class=sub id=subdocsSub>
<DIV class=subFolder id=evendocs><IMG class=icon height=16 
src="http://www.alixixi.com/UploadPic/userface/no1323.jpg" width=16>even more Docs</DIV>
<DIV class=sub id=evendocsSub>
<DIV class=subItem><IMG class=icon height=16 src="http://www.alixixi.com/UploadPic/userface/no1323.jpg" 
width=16>doc 3.1</DIV>
<DIV class=subItem><IMG class=icon height=16 src="http://www.alixixi.com/UploadPic/userface/no1323.jpg" 
width=16>doc 3.2</DIV></DIV>
<DIV class=subItem><IMG class=icon height=16 src="http://www.alixixi.com/UploadPic/userface/no1323.jpg" 
width=16>doc 2.1</DIV>
<DIV class=subItem><IMG class=icon height=16 src="http://www.alixixi.com/UploadPic/userface/no1323.jpg" 
width=16>doc 2.2</DIV></DIV>
<DIV class=subItem><IMG class=icon height=16 src="http://www.alixixi.com/UploadPic/userface/no1323.jpg" 
width=16>doc 1</DIV>
<DIV class=subItem><IMG class=icon height=16 src="http://www.alixixi.com/UploadPic/userface/no1323.jpg" 
width=16>doc 2</DIV>
<DIV class=subFolder id=subdocs2><IMG class=icon height=16 
src="http://www.alixixi.com/UploadPic/userface/no1323.jpg" width=16>more Docs</DIV>
<DIV class=sub id=subdocs2Sub>
<DIV class=subItem><IMG class=icon height=16 src="http://www.alixixi.com/UploadPic/userface/no1323.jpg" 
width=16>doc 2.1</DIV>
<DIV class=subItem><IMG class=icon height=16 src="http://www.alixixi.com/UploadPic/userface/no1323.jpg" 
width=16>doc 2.2</DIV>
<DIV class=subFolder id=evendocs2><IMG class=icon height=16 
src="http://www.alixixi.com/UploadPic/userface/no1323.jpg" width=16>even more Docs</DIV>
<DIV class=sub id=evendocs2Sub>
<DIV class=subItem><IMG class=icon height=16 src="http://www.alixixi.com/UploadPic/userface/no1323.jpg" 
width=16>doc 3.1</DIV>
<DIV class=subItem><IMG class=icon height=16 src="http://www.alixixi.com/UploadPic/userface/no1323.jpg" 
width=16>doc 3.2</DIV></DIV></DIV>
<DIV class=subItem><IMG class=icon height=16 src="http://www.alixixi.com/UploadPic/userface/no1323.jpg" 
width=16>doc 3</DIV>
<DIV class=subItem><IMG class=icon height=16 src="http://www.alixixi.com/UploadPic/userface/no1323.jpg" 
width=16>doc 4</DIV></DIV>
<DIV class=topFolder id=links><IMG class=icon height=16 
src="http://www.alixixi.com/UploadPic/userface/no1323.jpg" width=16>Links</DIV>
<DIV class=sub id=linksSub>
<DIV class=subItem href="http://www.insidedhtml.com"><IMG class=icon height=16 
src="http://www.alixixi.com/UploadPic/userface/no1323.jpg" width=16>InsideDHTML</DIV>
<DIV class=subItem href="http://members.xoom.com/dynduo/"><IMG class=icon 
height=16 src="http://www.alixixi.com/UploadPic/userface/no1323.jpg" width=16>The Dynamic Duo</DIV>
<DIV class=subItem href="http://www.ircweb.net/eae/fx/"><IMG class=icon 
height=16 src="http://www.alixixi.com/UploadPic/userface/no1323.jpg" width=16>WebFX</DIV></DIV>
<DIV class=topFolder id=todo style="FONT-WEIGHT: bold"><IMG class=icon height=16 
src="http://www.alixixi.com/UploadPic/userface/no1323.jpg" width=16><font color=red>警告：</font></DIV>
<DIV class=sub id=todoSub style="PADDING-LEFT: 22px">
<DIV>此特效未经允许请不要随便使用</DIV></DIV>
<DIV class=topItem href="http://www.163.net/"><IMG class=icon height=17 
src="http://www.alixixi.com/UploadPic/userface/no1323.jpg" style="HEIGHT: 17px" width=16>Back to 
163.net</DIV></DIV>

<a href="http://www.alixixi.com/Dev/HTML/jsrun/">欢迎访问阿里西西网页特效集</a>

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