[44] | 1 | /*
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| 2 | * FCKeditor - The text editor for internet
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| 3 | * Copyright (C) 2003-2006 Frederico Caldeira Knabben
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| 4 | *
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| 5 | * Licensed under the terms of the GNU Lesser General Public License:
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| 6 | * http://www.opensource.org/licenses/lgpl-license.php
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| 7 | *
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| 8 | * For further information visit:
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| 9 | * http://www.fckeditor.net/
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| 10 | *
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| 11 | * "Support Open Source software. What about a donation today?"
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| 12 | *
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| 13 | * File Name: fcktools_ie.js
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| 14 | * Utility functions. (IE version).
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| 15 | *
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| 16 | * File Authors:
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| 17 | * Frederico Caldeira Knabben (fredck@fckeditor.net)
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| 18 | */
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| 19 |
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| 20 | FCKTools.CancelEvent = function( e )
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| 21 | {
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| 22 | return false ;
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| 23 | }
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| 24 |
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| 25 | // Appends one or more CSS files to a document.
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| 26 | FCKTools._AppendStyleSheet = function( documentElement, cssFileUrl )
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| 27 | {
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| 28 | return documentElement.createStyleSheet( cssFileUrl ).owningElement ;
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| 29 | }
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| 30 |
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| 31 | // Removes all attributes and values from the element.
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| 32 | FCKTools.ClearElementAttributes = function( element )
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| 33 | {
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| 34 | element.clearAttributes() ;
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| 35 | }
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| 36 |
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| 37 | FCKTools.GetAllChildrenIds = function( parentElement )
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| 38 | {
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| 39 | var aIds = new Array() ;
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| 40 | for ( var i = 0 ; i < parentElement.all.length ; i++ )
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| 41 | {
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| 42 | var sId = parentElement.all[i].id ;
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| 43 | if ( sId && sId.length > 0 )
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| 44 | aIds[ aIds.length ] = sId ;
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| 45 | }
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| 46 | return aIds ;
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| 47 | }
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| 48 |
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| 49 | FCKTools.RemoveOuterTags = function( e )
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| 50 | {
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| 51 | e.insertAdjacentHTML( 'beforeBegin', e.innerHTML ) ;
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| 52 | e.parentNode.removeChild( e ) ;
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| 53 | }
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| 54 |
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| 55 | FCKTools.CreateXmlObject = function( object )
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| 56 | {
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| 57 | var aObjs ;
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| 58 |
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| 59 | switch ( object )
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| 60 | {
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| 61 | case 'XmlHttp' :
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| 62 | aObjs = [ 'MSXML2.XmlHttp', 'Microsoft.XmlHttp' ] ;
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| 63 | break ;
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| 64 |
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| 65 | case 'DOMDocument' :
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| 66 | aObjs = [ 'MSXML2.DOMDocument', 'Microsoft.XmlDom' ] ;
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| 67 | break ;
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| 68 | }
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| 69 |
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| 70 | for ( var i = 0 ; i < 2 ; i++ )
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| 71 | {
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| 72 | try { return new ActiveXObject( aObjs[i] ) ; }
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| 73 | catch (e)
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| 74 | {}
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| 75 | }
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| 76 |
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| 77 | if ( FCKLang.NoActiveX )
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| 78 | {
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| 79 | alert( FCKLang.NoActiveX ) ;
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| 80 | FCKLang.NoActiveX = null ;
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| 81 | }
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| 82 | }
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| 83 |
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| 84 | FCKTools.DisableSelection = function( element )
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| 85 | {
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| 86 | element.unselectable = 'on' ;
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| 87 |
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| 88 | var e, i = 0 ;
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| 89 | while ( e = element.all[ i++ ] )
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| 90 | {
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| 91 | switch ( e.tagName )
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| 92 | {
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| 93 | case 'IFRAME' :
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| 94 | case 'TEXTAREA' :
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| 95 | case 'INPUT' :
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| 96 | case 'SELECT' :
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| 97 | /* Ignore the above tags */
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| 98 | break ;
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| 99 | default :
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| 100 | e.unselectable = 'on' ;
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| 101 | }
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| 102 | }
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| 103 | }
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| 104 |
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| 105 | FCKTools.GetScrollPosition = function( relativeWindow )
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| 106 | {
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| 107 | var oDoc = relativeWindow.document ;
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| 108 |
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| 109 | // Try with the doc element.
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| 110 | var oPos = { X : oDoc.documentElement.scrollLeft, Y : oDoc.documentElement.scrollTop } ;
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| 111 |
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| 112 | if ( oPos.X > 0 || oPos.Y > 0 )
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| 113 | return oPos ;
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| 114 |
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| 115 | // If no scroll, try with the body.
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| 116 | return { X : oDoc.body.scrollLeft, Y : oDoc.body.scrollTop } ;
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| 117 | }
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| 118 |
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| 119 | FCKTools.AddEventListener = function( sourceObject, eventName, listener )
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| 120 | {
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| 121 | sourceObject.attachEvent( 'on' + eventName, listener ) ;
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| 122 | }
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| 123 |
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| 124 | FCKTools.RemoveEventListener = function( sourceObject, eventName, listener )
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| 125 | {
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| 126 | sourceObject.detachEvent( 'on' + eventName, listener ) ;
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| 127 | }
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| 128 |
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| 129 | // Listeners attached with this function cannot be detached.
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| 130 | FCKTools.AddEventListenerEx = function( sourceObject, eventName, listener, paramsArray )
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| 131 | {
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| 132 | // Ok... this is a closures party, but is the only way to make it clean of memory leaks.
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| 133 | var o = new Object() ;
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| 134 | o.Source = sourceObject ;
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| 135 | o.Params = paramsArray || [] ; // Memory leak if we have DOM objects here.
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| 136 | o.Listener = function( ev )
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| 137 | {
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| 138 | return listener.apply( o.Source, [ ev ].concat( o.Params ) ) ;
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| 139 | }
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| 140 |
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| 141 | if ( FCK.IECleanup )
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| 142 | FCK.IECleanup.AddItem( null, function() { o.Source = null ; o.Params = null ; } ) ;
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| 143 |
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| 144 | sourceObject.attachEvent( 'on' + eventName, o.Listener ) ;
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| 145 |
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| 146 | sourceObject = null ; // Memory leak cleaner (because of the above closure).
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| 147 | paramsArray = null ; // Memory leak cleaner (because of the above closure).
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| 148 | }
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| 149 |
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| 150 | // Returns and object with the "Width" and "Height" properties.
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| 151 | FCKTools.GetViewPaneSize = function( win )
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| 152 | {
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| 153 | var oSizeSource ;
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| 154 |
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| 155 | var oDoc = win.document.documentElement ;
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| 156 | if ( oDoc && oDoc.clientWidth ) // IE6 Strict Mode
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| 157 | oSizeSource = oDoc ;
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| 158 | else
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| 159 | oSizeSource = top.document.body ; // Other IEs
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| 160 |
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| 161 | if ( oSizeSource )
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| 162 | return { Width : oSizeSource.clientWidth, Height : oSizeSource.clientHeight } ;
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| 163 | else
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| 164 | return { Width : 0, Height : 0 } ;
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| 165 | }
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| 166 |
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| 167 | FCKTools.SaveStyles = function( element )
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| 168 | {
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| 169 | var oSavedStyles = new Object() ;
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| 170 |
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| 171 | if ( element.className.length > 0 )
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| 172 | {
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| 173 | oSavedStyles.Class = element.className ;
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| 174 | element.className = '' ;
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| 175 | }
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| 176 |
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| 177 | var sInlineStyle = element.style.cssText ;
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| 178 |
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| 179 | if ( sInlineStyle.length > 0 )
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| 180 | {
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| 181 | oSavedStyles.Inline = sInlineStyle ;
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| 182 | element.style.cssText = '' ;
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| 183 | }
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| 184 |
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| 185 | return oSavedStyles ;
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| 186 | }
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| 187 |
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| 188 | FCKTools.RestoreStyles = function( element, savedStyles )
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| 189 | {
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| 190 | element.className = savedStyles.Class || '' ;
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| 191 | element.style.cssText = savedStyles.Inline || '' ;
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| 192 | }
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| 193 |
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| 194 | FCKTools.RegisterDollarFunction = function( targetWindow )
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| 195 | {
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| 196 | targetWindow.$ = targetWindow.document.getElementById ;
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| 197 | }
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| 198 |
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| 199 | FCKTools.AppendElement = function( target, elementName )
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| 200 | {
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| 201 | return target.appendChild( this.GetElementDocument( target ).createElement( elementName ) ) ;
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| 202 | } |
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