我是 jquery 的新手，在这里需要一些帮助。我正在使用基于 CSS、JavaScript 和 jQuery 的手风琴菜单，请参阅原始版本...我有一个问题希望这里的一些大师可以回答...我的经验来自 ASP 和 ActionScript，所以我需要一些指导或帮助！
我在设置和调整菜单并将其设置为保存其打开状态时没有问题，但是我正在处理的网站非常大，并且菜单确实从一个网站部分完全更改为另一个。问题是从一个菜单保存的打开状态被传递到网站其他部分的所有其他菜单。示例：如果菜单 1 中保存的打开状态是标题 2，那么用户使用菜单 2 导航到网站的另一个部分，菜单打开菜单 1 的保存状态，即标题 2，这变得非常奇怪。我知道这是通过在会话结束时过期的 cookie 完成的，并且为该 cookie 传递的值类似于 c0、c1、c2 等。c0 是标题 1，c1 是标题 2，依此类推。我也知道我可以在每个菜单请求中传递一个查询字符串来打开某个标题项，例如www.example.com/company/?headerbar=2但这并不理想。
问题是我对带有所有菜单的标题栏使用相同的类，并且 jQuery 核心和手风琴 JavaScript 和 CSS 都是服务器端包含的，它们在菜单出现的所有网站部分中加载。
我的问题是：有没有办法让 cookie 记住每个菜单打开的标题组是唯一的？可能是通过将其他内容附加到 cookie 中，例如菜单的 url 位置，以便每个独特的菜单都可以记住自己独特的保存状态？我的 javascript 技能正在提高，但我无法弄清楚 sidemenu.js 文件中实现的所有 cookie 函数和代码，以便进行必要的更改。
原始菜单在这里：http ://www.dynamicdrive.com/dynamicindex17/ddaccordionmenu-urban.htm
我正在使用 jQuery v1.7.2
菜单html
<div class="ws_sidemenu">
<h3 class="headerbar"><a href="#">CSS Library</a></h3>
<ul class="submenu">
<li><a href="#">Horizontal CSS Menus?</a></li>
<li><a href="#">Vertical CSS Menus</a></li>
<li><a href="#">Image CSS</a></li>
<li><a href="#">Form CSS</a></li>
<li><a href="#">DIVs and containers</a></li>
<li><a href="#">Links & Buttons</a></li>
<li><a href="#">Other</a></li>
<li><a href="#">Browse All</a></li>
</ul>
<h3 class="headerbar"><a href="#">JavaScript Kit</a></h3>
<ul class="submenu">
<li><a href="#" >Free JavaScripts</a></li>
<li><a href="#">JavaScript tutorials</a></li>
<li><a href="#">JavaScript Reference</a></li>
<li><a href="#">DHTML & CSS</a></li>
<li><a href="#">Web Design</a></li>
<li><a href="#">Free Java Applets</a></li>
</ul>
</div>
这是我的 CSS，它是菜单出现的每个部分中的服务器端包含
.ws_sidemenu{
width:200px; /*width of menu*/
padding-right:10px;
}
/* 1. Side Menu Header Bar */
.ws_sidemenu .headerbar{
font:bold 13px Verdana;
color:white;
background:#606060 url(/media/images/gui/arrows/arw_white_sm_sidemenu.png) no-repeat 4px 13px;; /*last 2 values are the x and y coordinates of bullet image*/
margin-bottom:0px; /*bottom spacing between header and rest of content*/
text-transform:uppercase;
padding:7px 0px 7px 20px; /*last value is left indentation of header text*/
cursor:pointer;
margin-top:1px;
}
.ws_sidemenu .headerbar a{
text-decoration:none;
color:white;
display:block;
outline:none;
}
/* 2. Side Menu Items */
.ws_sidemenu ul{
list-style-type:none;
margin:0;
padding:0;
margin-bottom:0; /*bottom spacing between each UL and rest of content*/
}
.ws_sidemenu ul li{
padding-bottom:2px; /*bottom spacing between menu items*/
}
.ws_sidemenu ul li a{
font:normal 12px Arial;
color:black;
background:#E0DDD8;
display:block;
padding:5px 0;
line-height:17px;
padding-left:8px; /*link text is indented*/
padding-right:8px; /*link text is indented*/
text-decoration:none;
outline:none;
}
.ws_sidemenu ul li a:visited{
color:black;
}
.ws_sidemenu ul li a:hover{ /*hover state CSS*/
color:white;
background:black;
}
HTML 头脚本（这是菜单出现的每个部分中的服务器端包含）
<!--SIDE MENU - BEGIN -->
<link rel="stylesheet" href="/css/sidemenu.css" type="text/css" media="screen" />
<script type="text/javascript" src="/js/sidemenu.js"></script>
<script type="text/javascript">
sidemenu.init({
headerclass: "headerbar", //Shared CSS class name of headers group
contentclass: "submenu", //Shared CSS class name of contents group
revealtype: "click", //Reveal content when user clicks or onmouseover the header? Valid value: "click", "clickgo", or "mouseover"
mouseoverdelay: 200, //if revealtype="mouseover", set delay in milliseconds before header expands onMouseover
collapseprev: true, //Collapse previous content (so only one open at any time)? true/false
defaultexpanded: [], //index of content(s) open by default [index1, index2, etc] [] denotes no content - This can also be dobe by passing QS headerbar
onemustopen: false, //Specify whether at least one header should be open always (so never all headers closed)
animatedefault: false, //Should contents open by default be animated into view?
persiststate: true, //persist state of opened contents within browser session?
toggleclass: ["", "selected"], //Two CSS classes to be applied to the header when it's collapsed and expanded, respectively ["class1", "class2"]
togglehtml: ["", "", ""], //Additional HTML added to the header when it's collapsed and expanded, respectively ["position", "html1", "html2"] (see docs)
animatespeed: "fast", //speed of animation: integer in milliseconds (ie: 200), or keywords "fast", "normal", or "slow"
oninit:function(headers, expandedindices){ //custom code to run when headers have initialized - Highlighting headers that are expanded by default when the page loads
for (var i=0; i<expandedindices.length; i++){
var expandedindex=expandedindices[i] //index of current expanded header index within array
headers[expandedindex].style.backgroundColor='#333333'
headers[expandedindex].style.color='#fff'
}
},
onopenclose:function(header, index, state, isuseractivated){
//custom code to run whenever a header is opened or closed
//do nothing
}
})
</script>
菜单 JavaScript 文件（在菜单出现的每个部分中也包括服务器端）
/*
SIDE MENU
Version : 1.0
*/
var sidemenu={
ajaxloadingmsg: '<img src="loading2.gif" /><br />Loading Content...', //customize HTML to output while Ajax content is being fetched (if applicable)
headergroup: {}, //object to store corresponding header group based on headerclass value
contentgroup: {}, //object to store corresponding content group based on headerclass value
preloadimages:function($images){
$images.each(function(){
var preloadimage=new Image()
preloadimage.src=this.src
})
},
expandone:function(headerclass, selected, scrolltoheader){ //PUBLIC function to expand a particular header
this.toggleone(headerclass, selected, "expand", scrolltoheader)
},
collapseone:function(headerclass, selected){ //PUBLIC function to collapse a particular header
this.toggleone(headerclass, selected, "collapse")
},
expandall:function(headerclass){ //PUBLIC function to expand all headers based on their shared CSS classname
var $headers=this.headergroup[headerclass]
this.contentgroup[headerclass].filter(':hidden').each(function(){
$headers.eq(parseInt($(this).attr('contentindex'))).trigger("evt_accordion")
})
},
collapseall:function(headerclass){ //PUBLIC function to collapse all headers based on their shared CSS classname
var $headers=this.headergroup[headerclass]
this.contentgroup[headerclass].filter(':visible').each(function(){
$headers.eq(parseInt($(this).attr('contentindex'))).trigger("evt_accordion")
})
},
toggleone:function(headerclass, selected, optstate, scrolltoheader){ //PUBLIC function to expand/ collapse a particular header
var $targetHeader=this.headergroup[headerclass].eq(selected)
var $subcontent=this.contentgroup[headerclass].eq(selected)
if (typeof optstate=="undefined" || optstate=="expand" && $subcontent.is(":hidden") || optstate=="collapse" && $subcontent.is(":visible"))
$targetHeader.trigger("evt_accordion", [false, scrolltoheader])
},
ajaxloadcontent:function($targetHeader, $targetContent, config, callback){
var ajaxinfo=$targetHeader.data('ajaxinfo')
function handlecontent(content){ //nested function
if (content){ //if ajax content has loaded
ajaxinfo.cacheddata=content //remember ajax content
ajaxinfo.status="cached" //set ajax status to cached
if ($targetContent.queue("fx").length==0){ //if this content isn't currently expanding or collapsing
$targetContent.hide().html(content) //hide loading message, then set sub content's HTML to ajax content
ajaxinfo.status="complete" //set ajax status to complete
callback() //execute callback function- expand this sub content
}
}
if (ajaxinfo.status!="complete"){
setTimeout(function(){handlecontent(ajaxinfo.cacheddata)}, 100) //call handlecontent() again until ajax content has loaded (ajaxinfo.cacheddata contains data)
}
} //end nested function
if (ajaxinfo.status=="none"){ //ajax data hasn't been fetched yet
$targetContent.html(this.ajaxloadingmsg)
$targetContent.slideDown(config.animatespeed)
ajaxinfo.status="loading" //set ajax status to "loading"
$.ajax({
url: ajaxinfo.url, //path to external menu file
error:function(ajaxrequest){
handlecontent('Error fetching content. Server Response: '+ajaxrequest.responseText)
},
success:function(content){
content=(content=="")? " " : content //if returned content is empty, set it to "space" is content no longer returns false/empty (hasn't loaded yet)
handlecontent(content)
}
})
}
else if (ajaxinfo.status=="loading")
handlecontent(ajaxinfo.cacheddata)
},
expandit:function($targetHeader, $targetContent, config, useractivated, directclick, skipanimation, scrolltoheader){
var ajaxinfo=$targetHeader.data('ajaxinfo')
if (ajaxinfo){ //if this content should be fetched via Ajax
if (ajaxinfo.status=="none" || ajaxinfo.status=="loading")
this.ajaxloadcontent($targetHeader, $targetContent, config, function(){sidemenu.expandit($targetHeader, $targetContent, config, useractivated, directclick)})
else if (ajaxinfo.status=="cached"){
$targetContent.html(ajaxinfo.cacheddata)
ajaxinfo.cacheddata=null
ajaxinfo.status="complete"
}
}
this.transformHeader($targetHeader, config, "expand")
$targetContent.slideDown(skipanimation? 0 : config.animatespeed, function(){
config.onopenclose($targetHeader.get(0), parseInt($targetHeader.attr('headerindex')), $targetContent.css('display'), useractivated)
if (scrolltoheader){
var sthdelay=(config["collapseprev"])? 20 : 0
clearTimeout(config.sthtimer)
config.sthtimer=setTimeout(function(){sidemenu.scrollToHeader($targetHeader)}, sthdelay)
}
if (config.postreveal=="gotourl" && directclick){ //if revealtype is "Go to Header URL upon click", and this is a direct click on the header
var targetLink=($targetHeader.is("a"))? $targetHeader.get(0) : $targetHeader.find('a:eq(0)').get(0)
if (targetLink) //if this header is a link
setTimeout(function(){location=targetLink.href}, 200 + (scrolltoheader? 400+sthdelay : 0) ) //ignore link target, as window.open(targetLink, targetLink.target) doesn't work in FF if popup blocker enabled
}
})
},
scrollToHeader:function($targetHeader){
sidemenu.$docbody.stop().animate({scrollTop: $targetHeader.offset().top}, 400)
},
collapseit:function($targetHeader, $targetContent, config, isuseractivated){
this.transformHeader($targetHeader, config, "collapse")
$targetContent.slideUp(config.animatespeed, function(){config.onopenclose($targetHeader.get(0), parseInt($targetHeader.attr('headerindex')), $targetContent.css('display'), isuseractivated)})
},
transformHeader:function($targetHeader, config, state){
$targetHeader.addClass((state=="expand")? config.cssclass.expand : config.cssclass.collapse) //alternate btw "expand" and "collapse" CSS classes
.removeClass((state=="expand")? config.cssclass.collapse : config.cssclass.expand)
if (config.htmlsetting.location=='src'){ //Change header image (assuming header is an image)?
$targetHeader=($targetHeader.is("img"))? $targetHeader : $targetHeader.find('img').eq(0) //Set target to either header itself, or first image within header
$targetHeader.attr('src', (state=="expand")? config.htmlsetting.expand : config.htmlsetting.collapse) //change header image
}
else if (config.htmlsetting.location=="prefix") //if change "prefix" HTML, locate dynamically added ".accordprefix" span tag and change it
$targetHeader.find('.accordprefix').html((state=="expand")? config.htmlsetting.expand : config.htmlsetting.collapse)
else if (config.htmlsetting.location=="suffix")
$targetHeader.find('.accordsuffix').html((state=="expand")? config.htmlsetting.expand : config.htmlsetting.collapse)
},
urlparamselect:function(headerclass){
var result=window.location.search.match(new RegExp(headerclass+"=((\\d+)(,(\\d+))*)", "i")) //check for "?headerclass=2,3,4" in URL
if (result!=null)
result=RegExp.$1.split(',')
return result //returns null, [index], or [index1,index2,etc], where index are the desired selected header indices
},
getCookie:function(Name){
var re=new RegExp(Name+"=[^;]+", "i") //construct RE to search for target name/value pair
if (document.cookie.match(re)) //if cookie found
return document.cookie.match(re)[0].split("=")[1] //return its value
return null
},
setCookie:function(name, value){
document.cookie = name + "=" + value + "; path=/"
},
init:function(config){
document.write('<style type="text/css">\n')
document.write('.'+config.contentclass+'{display: none}\n') //generate CSS to hide contents
document.write('a.hiddenajaxlink{display: none}\n') //CSS class to hide ajax link
document.write('<\/style>')
jQuery(document).ready(function($){
sidemenu.urlparamselect(config.headerclass)
var persistedheaders=sidemenu.getCookie(config.headerclass)
sidemenu.headergroup[config.headerclass]=$('.'+config.headerclass) //remember header group for this accordion
sidemenu.contentgroup[config.headerclass]=$('.'+config.contentclass) //remember content group for this accordion
sidemenu.$docbody=(window.opera)? (document.compatMode=="CSS1Compat"? jQuery('html') : jQuery('body')) : jQuery('html,body')
var $headers=sidemenu.headergroup[config.headerclass]
var $subcontents=sidemenu.contentgroup[config.headerclass]
config.cssclass={collapse: config.toggleclass[0], expand: config.toggleclass[1]} //store expand and contract CSS classes as object properties
config.revealtype=config.revealtype || "click"
config.revealtype=config.revealtype.replace(/mouseover/i, "mouseenter")
if (config.revealtype=="clickgo"){
config.postreveal="gotourl" //remember added action
config.revealtype="click" //overwrite revealtype to "click" keyword
}
if (typeof config.togglehtml=="undefined")
config.htmlsetting={location: "none"}
else
config.htmlsetting={location: config.togglehtml[0], collapse: config.togglehtml[1], expand: config.togglehtml[2]} //store HTML settings as object properties
config.oninit=(typeof config.oninit=="undefined")? function(){} : config.oninit //attach custom "oninit" event handler
config.onopenclose=(typeof config.onopenclose=="undefined")? function(){} : config.onopenclose //attach custom "onopenclose" event handler
var lastexpanded={} //object to hold reference to last expanded header and content (jquery objects)
var expandedindices=sidemenu.urlparamselect(config.headerclass) || ((config.persiststate && persistedheaders!=null)? persistedheaders : config.defaultexpanded)
if (typeof expandedindices=='string') //test for string value (exception is config.defaultexpanded, which is an array)
expandedindices=expandedindices.replace(/c/ig, '').split(',') //transform string value to an array (ie: "c1,c2,c3" becomes [1,2,3]
if (expandedindices.length==1 && expandedindices[0]=="-1") //check for expandedindices value of [-1], indicating persistence is on and no content expanded
expandedindices=[]
if (config["collapseprev"] && expandedindices.length>1) //only allow one content open?
expandedindices=[expandedindices.pop()] //return last array element as an array (for sake of jQuery.inArray())
if (config["onemustopen"] && expandedindices.length==0) //if at least one content should be open at all times and none are, open 1st header
expandedindices=[0]
$headers.each(function(index){ //loop through all headers
var $header=$(this)
if (/(prefix)|(suffix)/i.test(config.htmlsetting.location) && $header.html()!=""){ //add a SPAN element to header depending on user setting and if header is a container tag
$('<span class="accordprefix"></span>').prependTo(this)
$('<span class="accordsuffix"></span>').appendTo(this)
}
$header.attr('headerindex', index+'h') //store position of this header relative to its peers
$subcontents.eq(index).attr('contentindex', index+'c') //store position of this content relative to its peers
var $subcontent=$subcontents.eq(index)
var $hiddenajaxlink=$subcontent.find('a.hiddenajaxlink:eq(0)') //see if this content should be loaded via ajax
if ($hiddenajaxlink.length==1){
$header.data('ajaxinfo', {url:$hiddenajaxlink.attr('href'), cacheddata:null, status:'none'}) //store info about this ajax content inside header
}
var needle=(typeof expandedindices[0]=="number")? index : index+'' //check for data type within expandedindices array- index should match that type
if (jQuery.inArray(needle, expandedindices)!=-1){ //check for headers that should be expanded automatically (convert index to string first)
sidemenu.expandit($header, $subcontent, config, false, false, !config.animatedefault) //3rd last param sets 'isuseractivated' parameter, 2nd last sets isdirectclick, last sets skipanimation param
lastexpanded={$header:$header, $content:$subcontent}
} //end check
else{
$subcontent.hide()
config.onopenclose($header.get(0), parseInt($header.attr('headerindex')), $subcontent.css('display'), false) //Last Boolean value sets 'isuseractivated' parameter
sidemenu.transformHeader($header, config, "collapse")
}
})
//if (config["scrolltoheader"] && lastexpanded.$header)
//sidemenu.scrollToHeader(lastexpanded.$header)
$headers.bind("evt_accordion", function(e, isdirectclick, scrolltoheader){ //assign CUSTOM event handler that expands/ contacts a header
var $subcontent=$subcontents.eq(parseInt($(this).attr('headerindex'))) //get subcontent that should be expanded/collapsed
if ($subcontent.css('display')=="none"){
sidemenu.expandit($(this), $subcontent, config, true, isdirectclick, false, scrolltoheader) //2nd last param sets 'isuseractivated' parameter
if (config["collapseprev"] && lastexpanded.$header && $(this).get(0)!=lastexpanded.$header.get(0)){ //collapse previous content?
sidemenu.collapseit(lastexpanded.$header, lastexpanded.$content, config, true) //Last Boolean value sets 'isuseractivated' parameter
}
lastexpanded={$header:$(this), $content:$subcontent}
}
else if (!config["onemustopen"] || config["onemustopen"] && lastexpanded.$header && $(this).get(0)!=lastexpanded.$header.get(0)){
sidemenu.collapseit($(this), $subcontent, config, true) //Last Boolean value sets 'isuseractivated' parameter
}
})
$headers.bind(config.revealtype, function(){
if (config.revealtype=="mouseenter"){
clearTimeout(config.revealdelay)
var headerindex=parseInt($(this).attr("headerindex"))
config.revealdelay=setTimeout(function(){sidemenu.expandone(config["headerclass"], headerindex, config.scrolltoheader)}, config.mouseoverdelay || 0)
}
else{
$(this).trigger("evt_accordion", [true, config.scrolltoheader]) //last parameter indicates this is a direct click on the header
return false //cancel default click behavior
}
})
$headers.bind("mouseleave", function(){
clearTimeout(config.revealdelay)
})
config.oninit($headers.get(), expandedindices)
$(window).bind('unload', function(){ //clean up and persist on page unload
$headers.unbind()
var expandedindices=[]
$subcontents.filter(':visible').each(function(index){ //get indices of expanded headers
expandedindices.push($(this).attr('contentindex'))
})
if (config.persiststate==true && $headers.length>0){ //persist state?
expandedindices=(expandedindices.length==0)? '-1c' : expandedindices //No contents expanded, indicate that with dummy '-1c' value?
sidemenu.setCookie(config.headerclass, expandedindices)
}
})
})
}
}
//preload any images defined inside ajaxloadingmsg variable
sidemenu.preloadimages(jQuery(sidemenu.ajaxloadingmsg).filter('img'))
提前感谢您的帮助！也欢迎替代解决方案！