// ajax Document

var Ajax = {xmlhttp:function(){

try{

return new ActiveXObject('Msxml2.XMLHTTP');

}catch(e){

try{

return new ActiveXObject('Microsoft.XMLHTTP');

}catch(e){

return new XMLHttpRequest();

}

} 

}

};



Ajax.Request = function(){

if (arguments.length<2) return;

var _p = {asynchronous:true,method:"GET",parameters:""}; //default option

for (var key in arguments[1]){ // custom option overwrite default option

_p[key] = arguments[1][key]; 

}

var _x = Ajax.xmlhttp(); //xml obj

var _url = arguments[0]; //str

if(_p["parameters"].length>0) _p["parameters"] += '&_=';

if(_p["method"].toUpperCase()=="GET")_url += (_url.match(/\?/) ? '&' : '?') + _p["parameters"];

_x.open(_p["method"],_url,_p["asynchronous"]);

_x.onreadystatechange = function(){

if (_x.readyState==4){

if(_x.status==200){

_p["onComplete"]?_p["onComplete"](_x):"";

}else{

_p["onError"]?_p["onError"](_x):"";

}

}

}

if(_p["method"].toUpperCase()=="POST")_x.setRequestHeader("Content-Type","application/x-www-form-urlencoded");

_x.send(_p["method"].toUpperCase()=="POST" ? _p["parameters"] : null);

};