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/*

 * FCKeditor - The text editor for internet

 * Copyright (C) 2003-2006 Frederico Caldeira Knabben

 *

 * Licensed under the terms of the GNU Lesser General Public License:

 * 		http://www.opensource.org/licenses/lgpl-license.php

 *

 * For further information visit:

 * 		http://www.fckeditor.net/

 *

 * "Support Open Source software. What about a donation today?"

 *

 * File Name: fckeditor.js

 * 	This is the integration file for JavaScript.

 *

 * 	It defines the FCKeditor class that can be used to create editor

 * 	instances in a HTML page in the client side. For server side

 * 	operations, use the specific integration system.

 *

 * File Authors:

 * 		Frederico Caldeira Knabben (fredck@fckeditor.net)

 */

// FCKeditor Class

var FCKeditor = function( instanceName, width, height, toolbarSet, value )

{

	// Properties

	this.InstanceName	= instanceName ;

	this.Width			= width			|| '100%' ;

	this.Height			= height		|| '200' ;

	this.ToolbarSet		= toolbarSet	|| 'Default' ;

	this.Value			= value			|| '' ;

	this.BasePath		= '/fckeditor/' ;

	this.CheckBrowser	= true ;

	this.DisplayErrors	= true ;

	this.EnableSafari	= false ;		// This is a temporary property, while Safari support is under development.

	this.EnableOpera	= false ;		// This is a temporary property, while Opera support is under development.

	this.Config			= new Object() ;

	// Events

	this.OnError		= null ;	// function( source, errorNumber, errorDescription )

}

FCKeditor.prototype.Version			= '2.3.2' ;

FCKeditor.prototype.VersionBuild	= '1082' ;

FCKeditor.prototype.Create = function()

{

	document.write( this.CreateHtml() ) ;

}

FCKeditor.prototype.CreateHtml = function()

{

	// Check for errors

	if ( !this.InstanceName || this.InstanceName.length == 0 )

	{

		this._ThrowError( 701, 'You must specify an instance name.' ) ;

		return ;

	}

	var sHtml = '<div>' ;

	if ( !this.CheckBrowser || FCKeditor_IsCompatibleBrowser() )

	{

		sHtml += '<input type="hidden" id="' + this.InstanceName + '" name="' + this.InstanceName + '" value="' + this._HTMLEncode( this.Value ) + '" style="display:none" />' ;

		sHtml += this._GetConfigHtml() ;

		sHtml += this._GetIFrameHtml() ;

	}

	else

	{

		var sWidth  = this.Width.toString().indexOf('%')  > 0 ? this.Width  : this.Width  + 'px' ;

		var sHeight = this.Height.toString().indexOf('%') > 0 ? this.Height : this.Height + 'px' ;

		sHtml += '<textarea name="' + this.InstanceName + '" rows="4" cols="40" style="width:' + sWidth + ';height:' + sHeight + '">' + this._HTMLEncode( this.Value ) + '<\/textarea>' ;

	}

	sHtml += '</div>' ;

	return sHtml ;

}

FCKeditor.prototype.ReplaceTextarea = function()

{

	if ( !this.CheckBrowser || FCKeditor_IsCompatibleBrowser() )

	{

		// We must check the elements firstly using the Id and then the name.

		var oTextarea = document.getElementById( this.InstanceName ) ;

		var colElementsByName = document.getElementsByName( this.InstanceName ) ;

		var i = 0;

		while ( oTextarea || i == 0 )

		{

			if ( oTextarea && oTextarea.tagName.toLowerCase() == 'textarea' )

				break ;

			oTextarea = colElementsByName[i++] ;

		}

		if ( !oTextarea )

		{

			alert( 'Error: The TEXTAREA with id or name set to "' + this.InstanceName + '" was not found' ) ;

			return ;

		}

		oTextarea.style.display = 'none' ;

		this._InsertHtmlBefore( this._GetConfigHtml(), oTextarea ) ;

		this._InsertHtmlBefore( this._GetIFrameHtml(), oTextarea ) ;

	}

}

FCKeditor.prototype._InsertHtmlBefore = function( html, element )

{

	if ( element.insertAdjacentHTML )	// IE

		element.insertAdjacentHTML( 'beforeBegin', html ) ;

	else								// Gecko

	{

		var oRange = document.createRange() ;

		oRange.setStartBefore( element ) ;

		var oFragment = oRange.createContextualFragment( html );

		element.parentNode.insertBefore( oFragment, element ) ;

	}

}

FCKeditor.prototype._GetConfigHtml = function()

{

	var sConfig = '' ;

	for ( var o in this.Config )

	{

		if ( sConfig.length > 0 ) sConfig += '&' ;

		sConfig += escape(o) + '=' + escape( this.Config[o] ) ;

	}

	return '<input type="hidden" id="' + this.InstanceName + '___Config" value="' + sConfig + '" style="display:none" />' ;

}

FCKeditor.prototype._GetIFrameHtml = function()

{

	var sFile = 'fckeditor.html' ;

	try

	{

		if ( (/fcksource=true/i).test( window.top.location.search ) )

			sFile = 'fckeditor.original.html' ;

	}

	catch (e) { /* Ignore it. Much probably we are inside a FRAME where the "top" is in another domain (security error). */ }

	var sLink = this.BasePath + 'editor/' + sFile + '?InstanceName=' + this.InstanceName ;

	if (this.ToolbarSet) sLink += '&Toolbar=' + this.ToolbarSet ;

	return '<iframe id="' + this.InstanceName + '___Frame" src="' + sLink + '" width="' + this.Width + '" height="' + this.Height + '" frameborder="0" scrolling="no"></iframe>' ;

}

// Deprecated (to be removed in the 3.0).

FCKeditor.prototype._IsCompatibleBrowser = function()

{

	return FCKeditor_IsCompatibleBrowser() ;

}

FCKeditor.prototype._ThrowError = function( errorNumber, errorDescription )

{

	this.ErrorNumber		= errorNumber ;

	this.ErrorDescription	= errorDescription ;

	if ( this.DisplayErrors )

	{

		document.write( '<div style="COLOR: #ff0000">' ) ;

		document.write( '[ FCKeditor Error ' + this.ErrorNumber + ': ' + this.ErrorDescription + ' ]' ) ;

		document.write( '</div>' ) ;

	}

	if ( typeof( this.OnError ) == 'function' )

		this.OnError( this, errorNumber, errorDescription ) ;

}

FCKeditor.prototype._HTMLEncode = function( text )

{

	if ( typeof( text ) != "string" )

		text = text.toString() ;

	text = text.replace(

		/&/g, "&").replace(

		/"/g, """).replace(

		/</g, "&lt;").replace(

		/>/g, ">") ;

	return text ;

}

function FCKeditor_IsCompatibleBrowser()

{

	var sAgent = navigator.userAgent.toLowerCase() ;

	// Internet Explorer

	if ( sAgent.indexOf("msie") != -1 && sAgent.indexOf("mac") == -1 && sAgent.indexOf("opera") == -1 )

	{

		var sBrowserVersion = navigator.appVersion.match(/MSIE (.\..)/)[1] ;

		return ( sBrowserVersion >= 5.5 ) ;

	}

	// Gecko (Opera 9 tries to behave like Gecko at this point).

	if ( navigator.product == "Gecko" && navigator.productSub >= 20030210 && !( typeof(opera) == 'object' && opera.postError ) )

		return true ;

	// Opera

	if ( this.EnableOpera && navigator.appName == 'Opera' && parseInt( navigator.appVersion ) >= 9 )

			return true ;

	// Safari

	if ( this.EnableSafari && sAgent.indexOf( 'safari' ) != -1 )

		return ( sAgent.match( /safari\/(\d+)/ )[1] >= 312 ) ;	// Build must be at least 312 (1.3)

	return false ;

}