// JScript 文件
   var http_request = false;
    function makeRequest(url,id) {
        http_request = false;
        if (window.XMLHttpRequest) 
        { // Mozilla, Safari,...
            http_request = new XMLHttpRequest();
            if (http_request.overrideMimeType) 
            {
                http_request.overrideMimeType('text/xml');
            }
        } 
        else if (window.ActiveXObject) 
        { // IE
             var a=['MSXML2.XMLHTTP.5.0','MSXML2.XMLHTTP.4.0','MSXML2.XMLHTTP.3.0','MSXML2.XMLHTTP','MICROSOFT.XMLHTTP.1.0','MICROSOFT.XMLHTTP.1','MICROSOFT.XMLHTTP'];
    		for (var i=0;i<a.length;i++){
      			try{
        			http_request = new ActiveXObject(a[i]);
        			break;
      			}catch(e){}
    		}
        }

        if (!http_request) 
        {
            alert('Giving up :( Cannot create an XMLHTTP instance');
            return false;
        }
        http_request.onreadystatechange = function (){ServerProcess(id)};
        http_request.open('GET', url, true);
        http_request.send(null);
    }
   function ServerProcess(id)
   {
        if(http_request.readystate<4)
        {
            document.getElementById(id).innerHTML="正在检验 loading...";
        }
        if(http_request.readystate==4||http_request.readystate=="complete")
       {
            if(http_request.responsetext==1)
            {
                change(false,id);
            }
            else if(http_request.responsetext==0)
            {
                change(true,id);
            }
       } 
   }
   function change(temp,id)
   {
        if(!temp)
        {
            erro_div(id,"用户名已存在");
            no=false;
        }
        else
        {
            yes_div(id,"此用户名尚未被注册");
            no=true;
        }
   }