function GetRequest() 
{   
      http_request = false;   
      if (window.XMLHttpRequest) 
	  {    
      		http_request = new XMLHttpRequest();   
            if (http_request.overrideMimeType) 
			{   
                 
                http_request.overrideMimeType('text/xml');   
            }   
        } else if (window.ActiveXObject) 
		{    
  
            try 
			{   
                http_request = new ActiveXObject("Msxml2.XMLHTTP");   
            } catch (e) 
			{   
                try 
				{   
                    http_request = new ActiveXObject("Microsoft.XMLHTTP");   
                } 
				catch (e) {}   
            }   
        }   
  return http_request;   
 } 

function GetResponseText(url)   
 {   
	 http_request=GetRequest();   
	 http_request.open('GET', url, false);   
	 http_request.send(null);   
	 if (http_request.readyState == 4)    
	 {   
		if (http_request.status == 200) requestdoc = http_request.responseText;    
		else requestdoc = http_request.status;     
	 }   
	 return requestdoc;   
 }