add: return null ; 
context: FCKTools.CreateXmlObject = function( object ){	var aObjs ;		switch ( object )	{		case 'XmlHttp' :			aObjs = [ 'MSXML2.XmlHttp', 'Microsoft.XmlHttp' ] ;			break ;						case 'DOMDocument' :			aObjs = [ 'MSXML2.DOMDocument', 'Microsoft.XmlDom' ] ;			break ;	}	for ( var i = 0 ; i < 2 ; i++ )	{		try { return new ActiveXObject( aObjs[i] ) ; }		catch (e) 		{}	}		if ( FCKLang.NoActiveX )	{		alert( FCKLang.NoActiveX ) ;		FCKLang.NoActiveX = null ;	}}
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