51 lines
1.2 KiB
JavaScript
51 lines
1.2 KiB
JavaScript
var net=new Object();
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net.AjaxRequest=function(url,onload,onerror,method,params){
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this.req=null;
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this.onload=onload;
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this.onerror=(onerror) ? onerror : this.defaultError;
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this.loadDate(url,method,params);
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}
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net.AjaxRequest.prototype.loadDate=function(url,method,params){
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if (!method){
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method="GET";
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}
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if (window.XMLHttpRequest){
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this.req=new XMLHttpRequest();
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} else if (window.ActiveXObject){
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this.req=new ActiveXObject("Microsoft.XMLHTTP");
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}
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if (this.req){
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try{
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var loader=this;
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this.req.onreadystatechange=function(){
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net.AjaxRequest.onReadyState.call(loader);
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}
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this.req.open(method,url,true);
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//this.req.send(params);
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this.req.send(null);
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}catch (err){
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this.onerror.call(this);
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}
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}
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}
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net.AjaxRequest.onReadyState=function(){
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var req=this.req;
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var ready=req.readyState;
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if (ready==4){
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if (req.status==200 ){
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this.onload.call(this);
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}else{
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this.onerror.call(this);
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}
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}
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}
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net.AjaxRequest.prototype.defaultError=function(){
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alert("error fetching data!"
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+"\n\nreadyState:"+this.req.readyState
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+"\nstatus: "+this.req.status
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+"\nheaders: "+this.req.getAllResponseHeaders());
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} |