/** 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;
  var params = false;
  var debug = 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.connect = function(sURL, sMethod, sVars, fnDone, fnParams)
  {
    if (!xmlhttp) return false;
        
    bComplete = false;
    sMethod = sMethod.toUpperCase();
    params = fnParams;
    noticeWindow_ajax.showOverlay();
//	sMethod="GET";
    try {
      if (sMethod == "GET")
      {
	var s = sURL;
	if ( sVars != "" ) s += "?"+sVars;
	if ( debug ) console.log( 'xhc str:', s );
        xmlhttp.open(sMethod, s, 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.onreadystatechange = function(){
        if (xmlhttp.readyState == 4 && !bComplete)
        {
      if ( xmlhttp.status == 200 )
      {
              bComplete = true;
	      noticeWindow_ajax.close();
              fnDone(xmlhttp, params);
      }
      else
      {
        showError( 'ajaxerror' );
      }
      }};
	if ( debug ) console.log( 'xhc svars:', sVars );
      xmlhttp.send(sVars);
    }
    catch(z) { return false; }
    return true;
  };
  this.connect2 = function(sURL, sMethod, sVars, fnDone, fnParams, fnError, id )
  {
    if (!xmlhttp) return false;
    bComplete = false;
    sMethod = sMethod.toUpperCase();
    params = fnParams;

    if ( !DOMREADY )
    {
	// delay myself 10ms
	this.connect2.delay( 100, this, [ sURL, sMethod, sVars, fnDone, fnParams, fnError, id ] );
	return;
    }
    
    noticeWindow_ajax.showOverlay();
//	sMethod="GET";
    try {
      if (sMethod == "GET")
      {
	var s = sURL;
	if ( sVars != "" ) s += "?"+sVars;
	if ( debug ) console.log( 'xhc str:', s );
        xmlhttp.open(sMethod, s, 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.onreadystatechange = function(){
        if (xmlhttp.readyState == 4 && !bComplete)
        {
      if ( xmlhttp.status == 200 )
      {
              bComplete = true;
	      noticeWindow_ajax.close();

	      validatorOBJ.func_complete2( xmlhttp.responseXML );
	      var res = validatorOBJ.getResult( );
	      if ( res[ 'error' ] ) { showMess( res[ 'error' ] ); try{ fnError( res ) } catch(z) { }; return; }
	      
              fnDone(res, params);
      }
      else
      {
        showError( 'ajaxerror' );
      }
      }};
	if ( debug ) console.log( 'xhc svars:', sVars );
      xmlhttp.send(sVars);
    }
    catch(z) { return false; }
    return true;
  };


  this.connect3 = function(sURL, sMethod, sVars, fnDone, fnParams, fnError, id )
  {
    if (!xmlhttp) return false;
    bComplete = false;
    sMethod = sMethod.toUpperCase();
    params = fnParams;
    
    sMethod="GET";
    try {
      if (sMethod == "GET")
      {
	var s = sURL;
console.log(s);
	xmlhttp.open(sMethod, s, true);
        }
	xmlhttp.onreadystatechange = function()
	{
        if (xmlhttp.readyState == 4 && !bComplete)
        {
	  console.log('status:',xmlhttp.status);
          if ( xmlhttp.status == 200 )
	  {
    	          bComplete = true;
		console.log('ajax ok');

          }
          else
    	    console.log('ajax error');
        }};
	console.log( 'xhc svars:', sVars );
        xmlhttp.send(sVars);
    }
    catch(z) { return false; }
    return true;
  };

  
  return this;
}