JQuery .find（）在我的IE中不工作

我一直在为这一整天苦苦挣扎，并试图通过这个question列出的步骤，但我不能发现问题。JQuery .find（）在我的IE中不工作

我使用quicktree插件来显示我的无序列表中的一棵树。

如果我删除线

<li><a href="#" title="Add a New Page" class="addnewpage-icon addnewpage" id="addnewpageid5">hello<a/>world</li>

它的工作原理但包括行也不会。

在Chrome和FF中没问题。

<head> 

<title>jQuery quickTree plugin example</title> 
<meta http-equiv="content-type" content="text/html;charset=utf-8" /> 
<meta http-equiv="Content-Style-Type" content="text/css" /> 

<link rel="stylesheet" type="text/css" href="http://www.prismstudio.co.uk/tutorials/quickTree/0.4/quickTree.css" /> 

<script type="text/javascript" src="http://jqueryjs.googlecode.com/files/jquery-1.3.2.min.js"></script> 



<script type="text/javascript"> 

jQuery.fn.quickTree = function() { 
return this.each(function(){ 

//set variables 
var $tree = $(this); 
var $roots = $tree.find('li'); 

//set last list-item as variable (to allow different background graphic to be applied) 
$tree.find('li:last-child').addClass('last'); 

//add class to allow styling 
$tree.addClass('tree'); 

//hide all lists inside of main list by default 
$tree.find('ul').hide(); 

//iterate through all list items 
$roots.each(function(){ 

//if list-item contains a child list 
if ($(this).children('ul').length > 0) { 
    //add expand/contract control 
    $(this).addClass('root').prepend('<span class="expand" />'); 
} 


}); //end .each 

//handle clicking on expand/contract control 
$('span.expand').toggle(
//if it's clicked once, find all child lists and expand 
function(){ 
$(this).toggleClass('contract').nextAll('ul').slideDown(); 
}, 
//if it's clicked again, find all child lists and contract 
function(){ 
$(this).toggleClass('contract').nextAll('ul').slideUp(); 
} 
); 
}); 
}; 

</script> 

<script type="text/javascript"> 
$(document).ready(function(){ 
    $('ul.quickTree').quickTree(); 
}); 
</script> 

</head> 
<body> 



<ul id="0" class="quickTree"> 
<li id="currentId4"><a href="editpage/5" class="show-always">home</a> 
    <ul id="4"> 
<li><a href="editpage/5" class="show-always">home</a> one</li> 
<li><a href="editpage/5" class="show-always">home</a> two</li> 
<li><a href="editpage/5" class="show-always">home</a> nmnmnm</li> 
<li><a href="editpage/5">home</a> aaaaa</li> 
<li><a href="editpage/4" class="show-always">hello<a/>world</li> 
<li><a href="editpage/5" class="show-always">home</a> nmnmnm</li> 
<li><a href="#" title="Add a New Page" class="addnewpage-icon addnewpage" id="addnewpageid5">hello<a/>world</li> 
</ul> 
    </li> 
    <li id="currentId5"><a href="editpage/5" class="show-always">where</a> 
    <ul id="4"> 
<li><a href="editpage/5" class="show-always">home</a> one</li> 
<li><a href="editpage/5" class="show-always">home</a> two</li> 
<li><a href="editpage/5" class="show-always">home</a> hghghgh</li> 
</ul> 
</li> 
<li><a>nmnmnmnm&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<a/></li>

来源

2010-09-14 Nicholas Murray