/*
 * FCKeditor - The text editor for internet
 * Copyright (C) 2003-2004 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/
 * 
 * File Name: fckcoreextensions.js
 * Some extensions to the Javascript Core.
 * 
 * Version:  2.0 RC3
 * Modified: 2005-02-20 00:54:00
 * 
 * File Authors:
 * Frederico Caldeira Knabben (fredck@fckeditor.net)
 */

// Extends the Array object, creating a "addItem" method on it.
Array.prototype.addItem = function( item )
{
var i = this.length ;
this[ i ] = item ;
return i ;
}

Array.prototype.indexOf = function( value )
{
for ( var i = 0 ; i < this.length ; i++ )
{
if ( this[i] == value )
return i ;
}
return -1 ;
}

String.prototype.startsWith = function( value )
{
return ( this.substr( 0, value.length ) == value ) ;
}

// Extends the String object, creating a "endsWith" method on it.
String.prototype.endsWith = function( value )
{
var L1 = this.length ;
var L2 = value.length ;

if ( L2 > L1 )
return false ;

return ( L2 == 0 || this.substr( L1 - L2, L2 ) == value ) ;
}

String.prototype.remove = function( start, length )
{
var s = '' ;

if ( start > 0 )
s = this.substring( 0, start ) ;

if ( start + length < this.length )
s += this.substring( start + length , this.length ) ;

return s ;
}

String.prototype.trim = function()
{
return this.replace( /(^\s*)|(\s*$)/g, '' ) ;
}

String.prototype.ltrim = function()
{
return this.replace( /^\s*/g, '' ) ;
}

String.prototype.rtrim = function()
{
return this.replace( /\s*$/g, '' ) ;
}

String.prototype.replaceNewLineChars = function( replacement )
{
return this.replace( /\n/g, replacement ) ;
}
