<?xml version="1.0" encoding="utf-8"?>
<Elements xmlns="http://schemas.microsoft.com/sharepoint/">
  <CustomAction
   Id="HelloWorldButton"
   Location="CommandUI.Ribbon">
    <CommandUIExtension>
      <CommandUIDefinitions>
        <CommandUIDefinition
                Location="Ribbon.Image.Image.Groups._children">
          <Group
            Id="Ribbon.Image.Image.HelloWorldButton"
            Sequence="80"
             Description="Hello World!"
            Title="Hello World!"
            Template="Ribbon.Templates.Flexible2">
            <Controls
              Id="Ribbon.Image.Image.HelloWorldButton.Controls">
              <Button
               Id="Ribbon.Image.Image.HelloWorldButton.Controls.HelloWorldButton1"
               Alt="Hello World Ribbon Button"
               Sequence="80"
               Image16by16="http://www.gizmochina.com/wp-content/themes/techblog/images/google-16x16.png"
               Image32by32="http://cache.filehippo.com/img/ex/2171__ChromeNew_icon.png"
               Command="Command_HelloWorld"
               LabelText="Hello World"
               TemplateAlias="o2"/>
            </Controls>
          </Group>
        </CommandUIDefinition>
      </CommandUIDefinitions>
      <CommandUIHandlers>
        <CommandUIHandler
         Command="Command_HelloWorld"
         CommandAction="javascript:$emu.RibbonButton('Hello');" />
      </CommandUIHandlers>
    </CommandUIExtension>
  </CustomAction>
</Elements>