如何为FireFox的XMLDocument增加LoadXML SelectNodes SelectSingleNode？
用惯了IE 的Dom，再来用FireFox的Dom,感觉真的非常不习惯。连最起码的LoadXML方法都没有。
加入下面的代码，你就可以像在ＩＥ下一样使用XmlDom啦！
varinfoNodes;if(document.all)infoNodes=document.getElementById("xmlInfo").XMLDocument.documentElement.selectNodes("Product");
else{
XMLDocument.prototype.loadXML=function(xmlString)
{varchildNodes=this.childNodes;for(vari=childNodes.length-1;i>=0;i--)this.removeChild(childNodes[i]);vardp=newDOMParser();varnewDOM=dp.parseFromString(xmlString,"text/xml");varnewElt=this.importNode(newDOM.documentElement,true);this.appendChild(newElt);
};//checkforXPathimplementationif(document.implementation.hasFeature("XPath","3.0")){//prototyingtheXMLDocumentXMLDocument.prototype.selectNodes=function(cXPathString,xNode){if(!xNode){xNode=this;}varoNSResolver=this.createNSResolver(this.documentElement)varaItems=this.evaluate(cXPathString,xNode,oNSResolver,XPathResult.ORDERED_NODE_SNAPSHOT_TYPE,null)varaResult=[];for(vari=0;i<aItems.snapshotLength;i++){aResult[i]=aItems.snapshotItem(i);}returnaResult;}//prototyingtheElementElement.prototype.selectNodes=function(cXPathString){if(this.ownerDocument.selectNodes){returnthis.ownerDocument.selectNodes(cXPathString,this);}else{throw"ForXMLElementsOnly";}}}//checkforXPathimplementationif(document.implementation.hasFeature("XPath","3.0")){//prototyingtheXMLDocumentXMLDocument.prototype.selectSingleNode=function(cXPathString,xNode){if(!xNode){xNode=this;}varxItems=this.selectNodes(cXPathString,xNode);if(xItems.length>0){returnxItems[0];}else{returnnull;}}//prototyingtheElementElement.prototype.selectSingleNode=function(cXPathString){if(this.ownerDocument.selectSingleNode){returnthis.ownerDocument.selectSingleNode(cXPathString,this);}else{throw"ForXMLElementsOnly";}}}//创建XML文档对象varxmlRef=document.implementation.createDocument("text/xml","",null);//使用importNode将HTMLDOM的一部分转换为XML文档。//参数true表示克隆全部子元素。varmyNode=document.getElementById("xmlInfo");xmlRef.loadXML(myNode.innerHTML);infoNodes=xmlRef.documentElement.childNodes;}
本文地址：http://www.45fan.com/dnjc/73519.html