These components are optional, and may be removed.
<wssuc:Welcome id="IdWelcome" runat="server"
EnableViewState="false"></wssuc:Welcome>
<Sharepoint:DelegateControl ControlId='GlobalSiteLink1"EnableViewState="false"></wssuc:Welcome>
Scope="Farm" runat="server"/>
<Sharepoint:DelegateControl ControlId="GlobalSiteLink2"
Scope="Farm" runat="server"/>
Main Navigation Control
The main navigation control is optional and may be removed if another navigation method will be used. The code is surrounded by HTML comments.
<!---- begin TOP NAVIGATION ---->
...
<!---- end TOP NAVIGATION ---->
Additional Components
Additional components may be added to the master page, such as breadcrumbs or a Quicklaunch menu. These components may be copied from the code of the default MOSS master page (default.master). It can be found in the Master Page Gallery.
Hidden Components - Selected Content Placeholders
These content placeholders are required for the page layouts to render properly. They have been placed in a hidden div so they won't conflict with the custom visual design. These items should be left intact unless they need to be moved into the visible code of the page (such as breadcrumbs).
<!-- begin HIDDEN MASTER PAGE ELEMENTS -->
<div style="display:none">
...
</div>
<!---- end HIDDEN MASTER PAGE ELEMENTS---->
<div style="display:none">
...
</div>
<!---- end HIDDEN MASTER PAGE ELEMENTS---->
