Delete alfresco footer and share footer (with community-3.4-share.png)

When using alfresco community your application send request to www.alfresco.com to get community-3.4-share.png file. And if your project works on local domain as our (www.istinadm.loc) then u'll want delete alfresco footer and share footer.
Open your favourite IDE (eclipse:) ) and create alfresco project. In build.xml write jar file name (jar name must begin with "aa" or "aaa" - when tomcat sorts jar files your file must come first). Create class as following:

/*
 * Copyright (C) 2005-2010 Alfresco Software Limited.
 *
 * This file is part of Alfresco
 *
 * Alfresco 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 3 of the License, or
 * (at your option) any later version.
 *
 * Alfresco 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.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with Alfresco. If not, see <http://www.gnu.org/licenses/>.
 */
 
/*
 * There is an Enterprise overlay for this file
 */

package org.alfresco.web.ui.repo.tag;

import java.io.IOException;
import java.io.Writer;

import javax.faces.context.FacesContext;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.jsp.JspException;
import javax.servlet.jsp.tagext.TagSupport;

import org.alfresco.web.app.Application;
import org.alfresco.web.app.servlet.FacesHelper;
import org.alfresco.web.bean.coci.CCProperties;
import org.alfresco.web.config.ClientConfigElement;
import org.alfresco.web.ui.common.Utils;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

/**
 * A non-JSF tag library that adds the HTML begin and end tags if running in servlet mode
 * 
 * @author gavinc
 */
public class PageTag extends TagSupport
{
   private static final long serialVersionUID = 8142765393181557228L;
   
   private final static String SCRIPTS_START = "\n";
   private final static String STYLES_START  = "\n";

   private final static String[] SCRIPTS = 
   {
      // menu javascript
      "/scripts/menu.js",
      // webdav javascript
      "/scripts/webdav.js",
      // base yahoo file
      "/scripts/ajax/yahoo/yahoo/yahoo-min.js",
      // io handling (AJAX)
      "/scripts/ajax/yahoo/connection/connection-min.js",
      // event handling
      "/scripts/ajax/yahoo/event/event-min.js",
      // mootools
      "/scripts/ajax/mootools.v1.11.js",
      // common Alfresco util methods
      "/scripts/ajax/common.js",
      // pop-up panel helper objects
      "/scripts/ajax/summary-info.js",
      // ajax pickers
      "/scripts/ajax/picker.js",
      "/scripts/ajax/tagger.js",
       // validation handling
       "/scripts/validation.js"
   };
   
   private final static String[] CSS = 
   {
      "/css/main.css",
      "/css/picker.css"
   };

/**
 * Please ensure you understand the terms of the license before changing the contents of this file.
 */
   
   private final static String ALF_LOGO_HTTP  = "http://www.alfresco.com/assets/images/logos/community-3.4.png";
   private final static String ALF_LOGO_HTTPS = "https://www.alfresco.com/assets/images/logos/community-3.4.png";
   private final static String ALF_URL   = "http://www.alfresco.com";
   private final static String ALF_TEXT  = "Alfresco Community";
   private final static String ALF_COPY  = "Supplied free of charge with " +
        "no support, " +
        "no certification, " +
        "no maintenance, " +
        "no warranty and " +
        "no indemnity by " +
        "Alfresco or its " +
        "Certified Partners. " +
        "Click here for support. " +
        "Alfresco Software Inc. © 2005-2010 All rights reserved.";
   
   private final static Log logger = LogFactory.getLog(PageTag.class);
   private static String alfresco = null;
   private static String loginPage = null;
   
   private long startTime = 0;
   private String title;
   private String titleId;
   private String doctypeRootElement;
   private String doctypePublic;
   private String doctypeSystem;
   
   /**
    * @return The title for the page
    */
   public String getTitle()
   {
      return title;
   }

   /**
    * @param title Sets the page title
    */
   public void setTitle(String title)
   {
      this.title = title;
   }
   
   /**
    * @return The title message Id for the page
    */
   public String getTitleId()
   {
      return titleId;
   }

   /**
    * @param titleId Sets the page title message Id
    */
   public void setTitleId(String titleId)
   {
      this.titleId = titleId;
   }

   public String getDoctypeRootElement()
   {
      return this.doctypeRootElement;
   }

   public void setDoctypeRootElement(final String doctypeRootElement)
   {
      this.doctypeRootElement = doctypeRootElement;
   }
   
   public String getDoctypePublic()
   {
      return this.doctypePublic;
   }

   public void setDoctypePublic(final String doctypePublic)
   {
      this.doctypePublic = doctypePublic;
   }

   public String getDoctypeSystem()
   {
      return this.doctypeSystem;
   }
   
   public void setDoctypeSystem(final String doctypeSystem)
   {
      this.doctypeSystem = doctypeSystem;
   }
   
   public void release()
   {
      super.release();
      this.title = null;
      this.titleId = null;
      this.doctypeRootElement = null;
      this.doctypeSystem = null;
      this.doctypePublic = null;
   }

   /**
    * @see javax.servlet.jsp.tagext.TagSupport#doStartTag()
    */
   public int doStartTag() throws JspException
   {
      if (logger.isDebugEnabled())
         startTime = System.currentTimeMillis();
      
      try
      {
         String reqPath = ((HttpServletRequest)pageContext.getRequest()).getContextPath();
         Writer out = pageContext.getOut();
         
         if (!Application.inPortalServer())
         {
            if (this.getDoctypeRootElement() != null &&
                this.getDoctypePublic() != null)
            {
               out.write("\n");
            }
            else
            {
               out.write("\n");
            }
            out.write("");
            out.write("\n");
            out.write("\n");
            out.write("\n");
            out.write("\n");
         }
         
         // CSS style includes
         for (final String css : PageTag.CSS)
         {
            out.write(STYLES_START);
            out.write(reqPath);
            out.write(css);
            out.write(STYLES_MAIN);
         }
         
         // JavaScript includes
         for (final String s : PageTag.SCRIPTS)
         {
            out.write(SCRIPTS_START);
            out.write(reqPath);
            out.write(s);
            out.write(SCRIPTS_END);
         }
         
         out.write("\n"); // end - generate naked javascript code

         if (!Application.inPortalServer())
         {
            out.write("");
            out.write("\n");
         }
      }
      catch (IOException ioe)
      {
         throw new JspException(ioe.toString());
      }
      
      return EVAL_BODY_INCLUDE;
   }

   /**
    * @see javax.servlet.jsp.tagext.TagSupport#doEndTag()
    */
   public int doEndTag() throws JspException
   {
      try
      {
         HttpServletRequest req = (HttpServletRequest)pageContext.getRequest();
         if (req.getRequestURI().endsWith(getLoginPage()) == false)
         {
            pageContext.getOut().write(getAlfrescoButton());
         }
         
         if (!Application.inPortalServer())
         {
            pageContext.getOut().write("\n");
         }
      }
      catch (IOException ioe)
      {
         throw new JspException(ioe.toString());
      }
      
      if (logger.isDebugEnabled())
      {
         long endTime = System.currentTimeMillis();
         logger.debug("Time to generate page: " + (endTime - startTime) + "ms");
      }
      
      return super.doEndTag();
   }
   
   private String getLoginPage()
   {
      if (PageTag.loginPage == null)
      {
         PageTag.loginPage = Application.getLoginPage(pageContext.getServletContext());
      }
      
      return PageTag.loginPage;
   }

/**
 * Please ensure you understand the terms of the license before changing the contents of this file.
 */

   private String getAlfrescoButton()
   {
      return "";
   }

   /**
    * This method generate code for setting window.onload reference as
    * we need to open WebDav or CIFS URL in a new window.
    * 
    * Executes via javascript code(function onloadFunc()) in "onload.js" include file.
    * 
    * @return Returns window.onload javascript code
    */
   private static void generateWindowOnloadCode(Writer out)
      throws IOException
   {
      FacesContext fc = FacesContext.getCurrentInstance();
      if (fc != null)
      {
          CCProperties ccProps = (CCProperties)FacesHelper.getManagedBean(fc, "CCProperties");
          if (ccProps.getWebdavUrl() != null || ccProps.getCifsPath() != null)
          {
             out.write("window.onload=function(){onloadFunc(\"");
             if (ccProps.getWebdavUrl() != null)
             {
                out.write(ccProps.getWebdavUrl());
             }
             out.write("\",\"");
             if (ccProps.getCifsPath() != null)
             {
                String val = ccProps.getCifsPath();
                val = Utils.replace(val, "\\", "\\\\");   // encode escape character
                out.write(val);
             }
             out.write("\");};");
             
             // reset session bean state
             ccProps.setCifsPath(null);
             ccProps.setWebdavUrl(null);
          }
      }
   }
}

Create jar file and upload to your /alfresco/WEB-INF/lib folder. Restart server and open your alfresco in browser (http://localhost:8083/alfresco) and footer must be vanish :)

If u want your "share" don't send request to www.alfresco.com then create new project in IDE as following:

/*
 * Copyright (C) 2005-2010 Alfresco Software Limited.
 *
 * This file is part of Alfresco
 *
 * Alfresco 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 3 of the License, or
 * (at your option) any later version.
 *
 * Alfresco 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.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with Alfresco. If not, see .
 */
 
/*
 * There is an Enterprise overlay for this file
 */

package org.alfresco.web.scripts;

import java.io.IOException;
import java.io.Writer;
import java.util.Map;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.json.JSONException;
import org.json.JSONObject;
import org.springframework.extensions.surf.util.I18NUtil;
import org.springframework.extensions.surf.util.StringBuilderWriter;
import org.springframework.extensions.webscripts.WebScriptRequest;
import org.springframework.extensions.webscripts.WebScriptResponse;

/**
 * WebScript responsible for returning a JavaScript response containing a JavaScript
 * associative array of all I18N messages name/key pairs installed on the web-tier.
 * * The JavaScript object is created as 'Alfresco.messages' - example usage:
 * 
 * var msg = Alfresco.messages["messageid"];
 * 
 * 
 * @author Kevin Roast
 */
public class MessagesWebScript extends org.springframework.extensions.webscripts.MessagesWebScript
{
 
 private static Log logger = LogFactory.getLog(MessagesWebScript.class);
 
    /**
     * Generate the message for a given locale.
     * 
     * @param locale    Java locale format
     * 
     * @return messages as JSON string
     * 
     * @throws IOException
     */
    @Override
    protected String generateMessages(WebScriptRequest req, WebScriptResponse res, String locale) throws IOException
    {
     
        Writer writer = new StringBuilderWriter(8192);
        writer.write("if (typeof Alfresco == \"undefined\" || !Alfresco) {var Alfresco = {};}\r\n");
        writer.write("Alfresco.messages = Alfresco.messages || {global: null, scope: {}}\r\n");
        writer.write("Alfresco.messages.global = ");
        
        JSONObject jsonOut = new JSONObject();
        try {
        Map messages = I18NUtil.getAllMessages(I18NUtil.parseLocale(locale));
        for (Map.Entry entry : messages.entrySet())
        {        
    jsonOut.put(entry.getKey(), entry.getValue());  
        }
  } catch (JSONException e) {
   if (logger.isErrorEnabled()){
    logger.error("SC: MessagesWebScript json generate exception:", e);
   }
  }
  writer.write(jsonOut.toString());

        writer.write(";\r\n");
        
        // community logo
        /*
        final String serverPath = req.getServerPath();
        final int schemaIndex = serverPath.indexOf(':');
        writer.write("window.setTimeout(function(){(document.getElementById('alfresco-yuiloader')||document.createElement('div')).innerHTML = '\'}, 100);\r\n");
        */
        writer.write("/* Created by Vasif Mustafayev. www.vmustafayev4en.blogspot.com */");        
        
        return writer.toString();
    }
}

Now create jar file and put it to /share/WEB-INF/lib/  folder. Restart server. open your browser and open your share project (localhost:8083/share) and u'll see difference.