/* @Packager.Header
<FileDescription>
	FCKXml Class: class to load and manipulate XML files.
	(IE specific implementation)
</FileDescription>
<Author name="Frederico Caldeira Knabben" email="www.fckeditor.net" />
*/

var FCKXml = function()
{
	this.Error = false ;
}

FCKXml.prototype.LoadUrl = function( urlToCall )
{
	this.Error = false ;

	var oXmlHttp = FCKTools.CreateXmlObject( 'XmlHttp' ) ;

	if ( !oXmlHttp )
	{
		this.Error = true ;
		return ;
	}

	oXmlHttp.open( "GET", urlToCall, false ) ;
	
	oXmlHttp.send( null ) ;

	if ( oXmlHttp.status == 200 || oXmlHttp.status == 304 )
		this.DOMDocument = oXmlHttp.responseXML ;
	else if ( oXmlHttp.status == 0 && oXmlHttp.readyState == 4 )
	{
		this.DOMDocument = FCKTools.CreateXmlObject( 'DOMDocument' ) ;
		this.DOMDocument.async = false ;
		this.DOMDocument.resolveExternals = false ;
		this.DOMDocument.loadXML( oXmlHttp.responseText ) ;
	}
	else
	{
		this.DOMDocument = null ;
	}

	if ( this.DOMDocument == null || this.DOMDocument.firstChild == null )
	{
		this.Error = true ;
		if (window.confirm( 'Error loading "' + urlToCall + '"\r\nDo you want to see more info?' ) )
			alert( 'URL requested: "' + urlToCall + '"\r\n' +
						'Server response:\r\nStatus: ' + oXmlHttp.status + '\r\n' +
						'Response text:\r\n' + oXmlHttp.responseText ) ;
	}
}

FCKXml.prototype.SelectNodes = function( xpath, contextNode )
{
	if ( this.Error )
		return new Array() ;

	if ( contextNode )
		return contextNode.selectNodes( xpath ) ;
	else
		return this.DOMDocument.selectNodes( xpath ) ;
}

FCKXml.prototype.SelectSingleNode = function( xpath, contextNode ) 
{
	if ( this.Error )
		return null ;
		
	if ( contextNode )
		return contextNode.selectSingleNode( xpath ) ;
	else
		return this.DOMDocument.selectSingleNode( xpath ) ;
}