Firefox提示"undefined",IE正常显示!
XML文件内容: 
  <?xml   version= "1.0 "   encoding= "gb2312 "   ?>  
  <sitemainmenu>  
 	 <item>  
 		 <enmenu> Home </enmenu>  
 		 <chmenu> 首页 </chmenu>  
 		 <url> / </url>  
 	 </item>  
 	 <item>  
 		 <enmenu> Product </enmenu>  
 		 <chmenu> 产品资讯 </chmenu>  
 		 <url> /product/ </url>  
 	 </item>  
 	 <item>  
 		 <enmenu> Support </enmenu>  
 		 <chmenu> 技术支持 </chmenu>  
 		 <url> /support/ </url>  
 	 </item>  
 	 <item>  
 		 <enmenu> Customer </enmenu>  
 		 <chmenu> 客户服务 </chmenu>  
 		 <url> /service/ </url>  
 	 </item>  
 	 <item>  
 		 <enmenu> Information </enmenu>  
 		 <chmenu> 信息中心 </chmenu>  
 		 <url> /company/ </url>  
 	 </item>  
  </sitemainmenu>    
 HTML内容: 
  <!DOCTYPE   html   PUBLIC    "-//W3C//DTD   XHTML   1.0   Transitional//EN "    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd ">  
  <html   xmlns= "http://www.w3.org/1999/xhtml ">  
  <head>  
  <meta   http-equiv= "Content-Type "   content= "text/html;   charset=gb2312 "   />  
  <title> 无标题文档 </title>  
  </head>    
  <body>  
  <script   language= "javascript "   type= "text/javascript ">  
  <!-- 
 var   xmlhttp; 
 try{ 
 		xmlhttp   =   new   ActiveXObject( 'Msxml2.XMLHTTP '); 
 }catch(e){ 
 			try{ 
 					xmlhttp=new   ActiveXObject( 'Microsoft.XMLHTTP '); 
 			}catch(e){ 
 						try{ 
 								xmlhttp=new   XMLHttpRequest(); 
 						}catch(e){} 
 			} 
 }   
 //创建对一个XML文件的请求 
 xmlhttp.open( "get ",    "sitemainmenu.xml ");						 
 //表单值处理程序 
 xmlhttp.onreadystatechange=function(){ 
 	if(xmlhttp.readyState   ==   4){ 
 		if(xmlhttp.status   ==200){ 
 			var   strdate=xmlhttp.responseXML; 
 			readNewRecord(strdate);			 
 		}else{ 
 			alert(xmlhttp.status); 
 		} 
 	} 
 } 
 //发送表单值 
 xmlhttp.send(null);   
 //设置http头    						 
 //读取XML文件 
 function   readNewRecord(strdate){		 
 	var   nodebuffer   =    " "	; 
 	nodebuffer   =   nodebuffer   + " <ul>  ";	  	 
 	var   prognode   =   strdate.getElementsByTagName( "item ");										 
 	alert(prognode.length);									 
 	for(var   i=0;   i <prognode.length;   i++){							 
 		var   menunodeText   =   prognode[i].childNodes[1]; 
 		var   urlnodeText   =   prognode[i].childNodes[2]; 
 		alert(menunodeText); 
 		nodebuffer   =   nodebuffer   + " <li>  <a   href= ' "+   urlnodeText.text   +    " '>  "+   menunodeText.text   + " </a>  </li>  "; 
 	}  	 
 	nodebuffer   =   nodebuffer   + " </ul>  "; 
 	document.write   (nodebuffer); 
 } 
 //-->  
  </script>  
  </body>  
  </html>      
 说明:就是动态读取XML文件中item的记录,写到一个 <ul> 中~,高手帮俺看看!
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