function getDomDocumentPrefix(){if(getDomDocumentPrefix.prefix){return getDomDocumentPrefix.prefix}var prefixes=["MSXML2","Microsoft","MSXML","MSXML3"];var o;for(var i=0;i<prefixes.length;i++){try{o=new ActiveXObject(prefixes[i]+".DomDocument");return getDomDocumentPrefix.prefix=prefixes[i]}catch(ex){}}throw new Error("请安装XML解析器。")}function getXmlHttpPrefix(){if(getXmlHttpPrefix.prefix){return getXmlHttpPrefix.prefix}var prefixes=["MSXML2","Microsoft","MSXML","MSXML3"];var o;for(var i=0;i<prefixes.length;i++){try{o=new ActiveXObject(prefixes[i]+".XmlHttp");return getXmlHttpPrefix.prefix=prefixes[i]}catch(ex){}}throw new Error("请安装XML解析器。")}function XmlHttp(){}XmlHttp.create=function(){try{if(window.XMLHttpRequest){var req=new XMLHttpRequest();if(req.readyState==null){req.readyState=1;req.addEventListener("load",function(){req.readyState=4;if(typeof req.onreadystatechange=="function"){req.onreadystatechange()}},false)}return req}if(window.ActiveXObject){return new ActiveXObject(getXmlHttpPrefix()+".XmlHttp")}}catch(ex){}throw new Error("浏览器不支持XmlHttp对象。")};function XmlDocument(){}XmlDocument.create=function(){try{if(document.implementation&&document.implementation.createDocument){var doc=document.implementation.createDocument("","",null);if(doc.readyState==null){doc.readyState=1;doc.addEventListener("load",function(){doc.readyState=4;if(typeof doc.onreadystatechange=="function"){doc.onreadystatechange()}},false)}return doc}if(window.ActiveXObject){return new ActiveXObject(getDomDocumentPrefix()+".DomDocument")}}catch(ex){}throw new Error("浏览器不支持XmlHttp对象。")};if(window.DOMParser&&window.XMLSerializer&&window.Node&&Node.prototype&&Node.prototype.__defineGetter__){Document.prototype.loadXML=function(s){var doc2=(new DOMParser()).parseFromString(s,"text/xml");while(this.hasChildNodes()){this.removeChild(this.lastChild)}for(var i=0;i<doc2.childNodes.length;i++){this.appendChild(this.importNode(doc2.childNodes[i],true))}};Document.prototype.__defineGetter__("xml",function(){return(new XMLSerializer()).serializeToString(this)})}var XmlHttpPoolArr=new Array();var XmlHttpPoolSize=100;var XHPCurrentAvailableID=0;function XmlHttpPool(){}XmlHttpPool.pick=function(){var pos=XHPCurrentAvailableID;XmlHttpPoolArr[pos]=XmlHttp.create();XHPCurrentAvailableID>=(XmlHttpPoolSize-1)?0:XHPCurrentAvailableID++;return XmlHttpPoolArr[pos]};