FireFox's processing of XML is compatible with IE's node processing method

Make Firefox's xml processing compatible with IE's node processing method. The specific codes are listed below.

The specific code is as follows.

<! DOCTYPE Html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" > 
< HTML > 
< HEAD > 
< TITLE >  使firefox对xml的处理兼容IE的selectSingleNode selectNodes方法  </ TITLE > 
< META  NAME ="Author"  CONTENT ="emu" > 
< META  NAME ="KeyWords"  CONTENT ="firefox IE selectSingleNode selectNodes" > 
< META  NAME ="Description"  CONTENT ="使firefox可以支持selectSingleNode selectNodes方法" > 
< SCRIPT  LANGUAGE ="javascript" > 
<!-- 
var  isIE  =   !! document.all;
function  parseXML(st){
     if (isIE){
         var  result  =   new  ActiveXObject( " microsoft.XMLDOM " );
        result.loadXML(st);
    } else {
         var  parser  =   new  DOMParser();
         var  result  =  parser.parseFromString(st,  " text/xml " );
    }
     return  result;
}
if ( ! isIE){
     var  ex;
    XMLDocument.PRototype.__proto__.__defineGetter__( " xml " ,  function (){
         try {
             return   new  XMLSerializer().serializeToString( this );
        } catch (ex){
             var  d  =  document.createElement( " div " );
            d.appendChild( this .cloneNode( true ));
             return  d.innerHTML;
        }
    });
    Element.prototype.__proto__.__defineGetter__( " xml " ,  function (){
         try {
             return   new  XMLSerializer().serializeToString( this );
        } catch (ex){
             var  d  =  document.createElement( " div " );
            d.appendChild( this .cloneNode( true ));
             return  d.innerHTML;
        }
    });
    XMLDocument.prototype.__proto__.__defineGetter__( " text " ,  function (){
         return   this .firstChild.textContent
    });
    Element.prototype.__proto__.__defineGetter__( " text " ,  function (){
         return   this .textContent
    });
    XMLDocument.prototype.selectSingleNode = Element.prototype.selectSingleNode = function (XPath){
         var  x = this .selectNodes(xpath)
         if ( ! x    x.length < 1 ) return   null ;
         return  x[ 0 ];
    }
    XMLDocument.prototype.selectNodes = Element.prototype.selectNodes = function (xpath){
         var  xpe  =   new  XPathEvaluator();
         var  nsResolver  =  xpe.createNSResolver( this .ownerDocument  ==   null   ? 
             this .documentElement :  this .ownerDocument.documentElement);
         var  result  =  xpe.evaluate(xpath,  this , nsResolver,  0 ,  null );
         var  found  =  [];
         var  res;
         while  (res  =  result.iterateNext())
            found.push(res);
         return  found;
    }
}
var  x  =  parseXML( " <people>  
<person first-name=\ " eric\ " 
 middle-initial=\ " H\ "  last-name=\ " jung\ " >   
  <address street=\ " 321  south st\ "  city=\ " denver\ "  state=\ " co\ "  country=\ " usa\ " />   
   <address street=\ " 123  main st\ "  city=\ " arlington\ "  state=\ " ma\ "  country=\ " usa\ " />  
   </person>  <person first-name=\ " jed\ "  last-name=\ " brown\ " >    
   <address street=\ " 321  north st\ "  city=\ " atlanta\ "  state=\ " ga\ "  country=\ " usa\ " />   
    <address street=\ " 123  west st\ "  city=\ " seattle\ "  state=\ " wa\ "  country=\ " usa\ " />    
    <address street=\ " 321  south avenue\ "  city=\ " denver\ "  state=\ " co\ "  country=\ " usa\ " />  
    </person></people> " );
alert( " 搜索所有人的姓氏（last-name） " )
var  results  =  x.selectNodes( " //person/@last-name " );
for  ( var  i = 0 ; i < results.length;i ++ )
  alert( " Person # "   +  i  +   "  has the last name  "   +  results[i].nodeValue);
alert( " 搜索第二个人 " );
//  IE是以0为下标基数的，而不是1 
if ( ! document.all)
    results  =  x.selectSingleNode( " /people/person[2] " );
else 
    results  =  x.selectSingleNode( " /people/person[1] " );
alert(results.xml)
alert( " 获得住址在donver街上的人 " );
results  =  x.selectNodes( " //person[address/@city='denver'] " );
for  ( var  i = 0 ; i < results.length;i ++ )alert(results[i].xml)
if ( ! document.all){
     //  获得所有街名中带south的地址 
    results  =  x.selectNodes( " //address[contains(@street, 'south')] " );
    alert(results[ 0 ].xml);
} else {
    alert( " IE不支持 //address[contains(@street, 'south')] 这种查询方式 " )
}
// --> 
</ SCRIPT > 
</ HEAD > 
< BODY > 
</ BODY > 
</ HTML >

As you can see from the example, IE's support for xpath is still limited.

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