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/*
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 * FCKeditor - The text editor for internet
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 * Copyright (C) 2003-2005 Frederico Caldeira Knabben
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 *
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 * Licensed under the terms of the GNU Lesser General Public License:
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 * 		http://www.opensource.org/licenses/lgpl-license.php
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 *
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 * For further information visit:
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 * 		http://www.fckeditor.net/
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 *
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 * File Name: fckcoreextensions.js
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 * 	Some extensions to the Javascript Core.
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 *
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 * File Authors:
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 * 		Frederico Caldeira Knabben (fredck@fckeditor.net)
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 */
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// Extends the Array object, creating a "addItem" method on it.
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Array.prototype.addItem = function( item )
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{
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	var i = this.length ;
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	this[ i ] = item ;
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	return i ;
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}
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Array.prototype.indexOf = function( value )
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{
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	for ( var i = 0 ; i < this.length ; i++ )
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	{
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		if ( this[i] == value )
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			return i ;
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	}
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	return -1 ;
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}
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String.prototype.startsWith = function( value )
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{
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	return ( this.substr( 0, value.length ) == value ) ;
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}
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// Extends the String object, creating a "endsWith" method on it.
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String.prototype.endsWith = function( value, ignoreCase )
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{
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	var L1 = this.length ;
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	var L2 = value.length ;
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	if ( L2 > L1 )
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		return false ;
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	if ( ignoreCase )
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	{
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		var oRegex = new RegExp( value + '$' , 'i' ) ;
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		return oRegex.test( this ) ;
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	}
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	else
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		return ( L2 == 0 || this.substr( L1 - L2, L2 ) == value ) ;
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}
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String.prototype.remove = function( start, length )
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{
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	var s = '' ;
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	if ( start > 0 )
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		s = this.substring( 0, start ) ;
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	if ( start + length < this.length )
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		s += this.substring( start + length , this.length ) ;
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	return s ;
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}
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String.prototype.trim = function()
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{
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	return this.replace( /(^\s*)|(\s*$)/g, '' ) ;
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}
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String.prototype.ltrim = function()
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{
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	return this.replace( /^\s*/g, '' ) ;
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}
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String.prototype.rtrim = function()
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{
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	return this.replace( /\s*$/g, '' ) ;
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}
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String.prototype.replaceNewLineChars = function( replacement )
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{
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	return this.replace( /\n/g, replacement ) ;
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}