/** XHConn - Simple XMLHTTP Interface - bfults@gmail.com - 2005-04-08        **
 ** Code licensed under Creative Commons Attribution-ShareAlike License      **
 ** http://creativecommons.org/licenses/by-sa/2.0/                           **/
function XHConn()
{
  var xmlhttp, bComplete = false;
  try { xmlhttp = new ActiveXObject("Msxml2.XMLHTTP"); }
  catch (e) { try { xmlhttp = new ActiveXObject("Microsoft.XMLHTTP"); }
  catch (e) { try { xmlhttp = new XMLHttpRequest(); }
  catch (e) { xmlhttp = false; }}}
  if (!xmlhttp) return null;
  
  this.connectobj = function(sObj, sURL, sMethod, sVars, fnDone)
  {
    if (!xmlhttp) return false;
    bComplete = false;
    sMethod = sMethod.toUpperCase();

    try {
      xmlhttp.onreadystatechange = function()
	  {
        if (xmlhttp.readyState == 4 && !bComplete)
        {
          bComplete = true;
          fnDone(sObj, xmlhttp);
        }
	  };
	  if (sMethod == "GET")
      {
		  sURL = (sVars!='') ? sURL+"?"+sVars : sURL;
  		  xmlhttp.open(sMethod, sURL, true);
		  sVars = "";
      }
      else
      {
		  xmlhttp.open(sMethod, sURL, true);
          xmlhttp.setRequestHeader("Method", "POST "+sURL+" HTTP/1.1");
          xmlhttp.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
      }
	  xmlhttp.send(sVars);
    }
    catch(z) { return false; }
    return true;
  };

  this.connect = function(sURL, sMethod, sVars, fnDone)
  {
    if (!xmlhttp) return false;
    bComplete = false;
    sMethod = sMethod.toUpperCase();

    try {
      xmlhttp.onreadystatechange = function()
	  {
        if (xmlhttp.readyState == 4 && !bComplete)
        {
          bComplete = true;
          fnDone(xmlhttp);
        }
	  };

	  if (sMethod == "GET")
      {
		  sURL = (sVars!='') ? sURL+"?"+sVars : sURL;
  		  xmlhttp.open(sMethod, sURL, true);
		  sVars = "";
      }
      else
      {
		  xmlhttp.open(sMethod, sURL, true);
          xmlhttp.setRequestHeader("Method", "POST "+sURL+" HTTP/1.1");
          xmlhttp.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
      }
	  xmlhttp.send(sVars);
    }
    catch(z) { return false; }
    return true;
  };
  return this;
}