var XMLTools = {
	"_defaultUrl" : im_path + 'controller.php?action=',
   "_debug" : false,
	"_http" : null,
	"mode" : 'X',
   "threads" : [],
	"http" : function()
	{
		try
		{
			this._http = new XMLHttpRequest();
		}
		catch (e)
		{
			try
			{
				this._http = new ActiveXObject('Msxml2.XMLHTTP');
			}
			catch (e1)
			{
				try
				{
					this._http = new ActiveXObject('Microsoft.XMLHTTP');
				}
				catch (e2)
				{
					this._http = null;
				}
			}
		}
	},
	"load" : function(pFile)
	{
		var data = null;
		if ( document.implementation.createDocument )
			data = document.implementation.createDocument("", "", null);
		else
			data = new ActiveXObject("Msxml2.FreeThreadedDOMDocument");

		data.async = false;
		data.load(pFile);
		return data;
	},
	"request" : function(pId, pTarget, pMethod, pHandler, pData)
	{
		if ( typeof pHandler != 'function' )
			return false;

      if ( this.threads[pId] )
         return false;
      else
         this.threads[pId] = pHandler;

		var _pTarget = pId;

		var _this = this;
		this.http();
		var _http = this._http;
		var _handler = function ()
		{
			try
			{
				switch( _http.readyState )
				{
					case 1 :
					break;
					case 2 :
					break;
					case 3 :
					break;
					case 4 :
							switch ( _http.status )
							{
								case 200:
										var data = ( _this.mode == 'X' ) ?
										               _http.responseXML :
                                             _http.responseText;

										pHandler(data, _pTarget);
                              _this.threads[_pTarget] = false;
                              delete _this.threads[_pTarget];
								break;
								case 404:
										alert('Page Not Found!');
								break;
								default:
							}
					break;
					default:
				}
			}
			catch(e)
			{
				if ( this._debug ) alert(e)
			}
		}
		
		try
		{
			var target = pTarget;
			if ( pMethod == 'POST' )
			{
				_http.open("POST", target, true);
				_http.setRequestHeader('Content-Type','application/x-www-form-urlencoded');
				_http.setRequestHeader('Cache-Control',  'no-store, no-cache, must-revalidate');
				_http.setRequestHeader('Cache-Control', 'post-check=0, pre-check=0');
				_http.setRequestHeader('Pragma', 'no-cache');
				_http.onreadystatechange = _handler;
				_http.send(pData);
			}
			else
			{
				_http.open("GET", target, true);
				_http.onreadystatechange = _handler;
				_http.send(null);
			}
		}
		catch(e)
		{}
		return true;
	},
	"transform" : function(pXML, pXSL)
	{
		var fragment = null;
		if ( window.XSLTProcessor )
		{
			var xslProc = new XSLTProcessor();
			xslProc.importStylesheet(pXSL);
			fragment = xslProc.transformToFragment(pXML, document);
			
			// para retornar valor igual ao ie.
			var aux = document.createElement("div");
			aux.appendChild(fragment);
			fragment = aux.innerHTML;
		}
		else
		{
			var xslTemplate = new ActiveXObject("Msxml2.XSLTemplate");
			xslTemplate.stylesheet = pXSL;

			var myXslProc = xslTemplate.createProcessor();
			myXslProc.input = pXML;

			myXslProc.transform();
			fragment = myXslProc.output;
			
		}
		return fragment;
	}
}