cms是开源的框架

				/*
				 * File   : $Source: /usr/local/cvs/opencms/modules/org.opencms.editors.msdhtml/resources/system/workplace/editors/msdhtml/edit.js,v $
				 * Date   : $Date: 2006/03/27 14:52:22 $
				 * Version: $Revision: 1.4 $
				 *
				 * This library is part of OpenCms -
				 * the Open Source Content Mananagement System
				 *
				 * Copyright (c) 2005 Alkacon Software GmbH (http://www.alkacon.com)
				 *
				 * This library is free software; you can redistribute it and/or
				 * modify it under the terms of the GNU Lesser General Public
				 * License as published by the Free Software Foundation; either
				 * version 2.1 of the License, or (at your option) any later version.
				 *
				 * This library is distributed in the hope that it will be useful,
				 * but WITHOUT ANY WARRANTY; without even the implied warranty of
				 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
				 * Lesser General Public License for more details.
				 *
				 * For further information about Alkacon Software GmbH, please see the
				 * company website: http://www.alkacon.com
				 *
				 * For further information about OpenCms, please see the
				 * project website: http://www.opencms.org
				 * 
				 * You should have received a copy of the GNU Lesser General Public
				 * License along with this library; if not, write to the Free Software
				 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
				 */
				
				// Indicates if the content of the editor window is already set
				var contentSetted = false;
				
				// loads the file content into the editor
				function initContent() {
					document.getElementById("edit1").innerText = decodeURIComponent(text);
				}
				
				function saveContent() {
					document.EDITOR.content.value = encodeURIComponent(document.getElementById("edit1").innerText);
				}
				
				function doEdit(para) {
					document.getElementById("edit1").focus();
					var _form = document.EDITOR;
					switch(para) {
					case 1:
						saveContent();
						_form.action.value = actionExit;
						_form.target = "_top";
						_form.submit();
						break;
					case 2:
						saveContent();
						_form.action.value = actionSaveExit;
						_form.target = "_top";
						_form.submit();
						break;
					case 3:
						saveContent();
						_form.action.value = actionSave;
						_form.target = "_self";
						_form.submit();
						break;
					case 4:
						saveContent();
						_form.action.value = actionSaveAction;
						_form.target = "_top";
						_form.submit();
						break;
					case 5:
						undo();
						break;  
					case 6:
						redo();
						break;    
					case 7:
						cut();
						break;
					case 8:
						copy();
						break;
					case 9:
						paste();
						break;
					default:
						alert("Sorry, the requested function " + para + " is not implemented.");
						break;  
					}   
				}
				
				function undo() {
					document.execCommand("Undo");   
				}
				
				function redo() {
					document.execCommand("Redo");   
				}
				
				function cut() {
					document.execCommand("Cut");   
				}
				
				function copy() {
					document.execCommand("Copy");   
				}
				
				function paste() {
					document.getElementById("edit1").setActive();
					document.getElementById("edit1").selection = document.selection.createRange();
					document.getElementById("edit1").selection.execCommand("Paste");   
				}
				
				function checkTab() {
					// cache the selection
					document.getElementById("edit1").selection =document.selection.createRange(); 
					setTimeout("processTab()", 0);
				}
				
				function processTab() {
					// insert tab character in place of cached selection
					document.getElementById("edit1").selection.text = String.fromCharCode(9);
					// set the focus
					document.getElementById("edit1").focus();
				}
				
				// This is not used on the code editor, but must be there since it is called on onLoad() event
				function initStyles() {
					// noop
				}