function DoWork(url){
 var rez;
function processReqChange(){ 
 if(req.readyState ==  4  && req.status ==  200 ){
  isok = true;
  rez = req.responseText;   
  //window.alert(rez + "  " + "State=" + req.readyState + "status=" + req.status);
  //copy(rez);
  document.write(rez);
  return ( 1 );     
 } else if (rez="") { 
   rez = "error"
   return ( 1 );
  }
}
activeUrl = url;
   if (window.XMLHttpRequest) {
        window.alert("XMLHttpRequest");  
        req = new XMLHttpRequest();
        req.overrideMimeType('text/xml');  
        req.onreadystatechange = processReqChange;  
        req.open('GET', url, true);  
        req.send(null);        
    } else
     if (window.ActiveXObject) {          
        req = new ActiveXObject('Microsoft.XMLHTTP');    
        if (req) {                    
            req.onreadystatechange = processReqChange; 
            req.open('GET',url, true);  
            req.send();
                return(rez) ;  
        }  
    }   
}