var Ajaxs=new Array();function Ajax(recvType,statusId){var aj=new Object();aj.statusId=statusId?document.getElementById(statusId):null;aj.targetUrl='';aj.sendString='';aj.recvType=recvType?recvType:'XML';aj.resultHandle=null;aj.createXMLHttpRequest=function(){var request=null;if(window.XMLHttpRequest){request=new XMLHttpRequest();if(request.overrideMimeType){request.overrideMimeType('text/xml');}}else if(window.ActiveXObject){var versions=new Array('Microsoft.XMLHTTP','MSXML.XMLHTTP','Microsoft.XMLHTTP','Msxml2.XMLHTTP.7.0','Msxml2.XMLHTTP.6.0','Msxml2.XMLHTTP.5.0','Msxml2.XMLHTTP.4.0','MSXML2.XMLHTTP.3.0','MSXML2.XMLHTTP');for(var i=0;i<versions.length;i++){try{request=new ActiveXObject(versions[i]);if(request){return request;}}catch(e){}}}return request;};aj.XMLHttpRequest=aj.createXMLHttpRequest();aj.processHandle=function(){if(aj.statusId){aj.statusId.style.display='';}if(aj.XMLHttpRequest.readyState==1&&aj.statusId){aj.statusId.innerHTML='正在连接……';}else if(aj.XMLHttpRequest.readyState==2&&aj.statusId){aj.statusId.innerHTML='连接成功……';}else if(aj.XMLHttpRequest.readyState==3&&aj.statusId){aj.statusId.innerHTML='数据交互中……';}else if(aj.XMLHttpRequest.readyState==4){if(aj.XMLHttpRequest.status==200){for(var k in Ajaxs){if(Ajaxs[k]==aj.targetUrl){Ajaxs[k]=null;}}if(aj.statusId){aj.statusId.innerHTML='';aj.statusId.style.display='none';}var ret;if(aj.recvType=='HTML'){ret=unescape(aj.XMLHttpRequest.responseText);aj.resultHandle(ret,aj);}else if(aj.recvType=='XML'){try{ret=unescape(aj.XMLHttpRequest.responseXML.lastChild.firstChild.nodeValue);}catch(e){}aj.resultHandle(ret,aj);}}else{if(aj.statusId){aj.statusId.innerHTML='加载数据失败，请检查网络原因或者联系管理员！';}}}};aj.in_array=function(needle,haystack){if(typeof needle=='string'){for(var i in haystack){if(haystack[i]==needle){return true;}}}return false;};aj.get=function(targetUrl,resultHandle,resend){if(!aj.XMLHttpRequest){alert("Can't create XMLHttpRequest object.");return;}if(!(typeof resend=='boolean'?resend:false)){if(aj.in_array(targetUrl,Ajaxs)){return false;}else{Ajaxs.push(targetUrl);}}if(typeof targetUrl=='string'){aj.targetUrl=targetUrl;}if(typeof resultHandle=='function'){aj.resultHandle=resultHandle;}aj.XMLHttpRequest.onreadystatechange=aj.processHandle;if(window.XMLHttpRequest){aj.XMLHttpRequest.open('GET',aj.targetUrl);aj.XMLHttpRequest.send(null);}else{aj.XMLHttpRequest.open('GET',aj.targetUrl,true);aj.XMLHttpRequest.send();}};aj.post=function(targetUrl,sendString,resultHandle,resend){if(!aj.XMLHttpRequest){alert("Can't create XMLHttpRequest object.");return;}if(!(typeof resend=='boolean'?resend:false)){if(aj.in_array(targetUrl,Ajaxs)){return false;}else{Ajaxs.push(targetUrl);}}if(typeof targetUrl=='string'){aj.targetUrl=targetUrl;}if(typeof sendString=='string'){aj.sendString=encodeURI(encodeURI(sendString));}if(typeof resultHandle=='function'){aj.resultHandle=resultHandle;}aj.XMLHttpRequest.onreadystatechange=aj.processHandle;aj.XMLHttpRequest.open('POST',aj.targetUrl);aj.XMLHttpRequest.setRequestHeader('Content-Type','application/x-www-form-urlencoded');aj.XMLHttpRequest.send(aj.sendString);};return aj;}