HTMLBase Element
The HTMLBase element returns a string that sets the base element for the current page. <ows:HTMLBase/>
should be added to the HEAD section of all CAML documents so that relative links in the document work correctly even when viewed through the CAML interpreter DLL (_vti_bin/owssvr.dll).
Syntax
<ows:HTMLBase/>
Example
The following line, included in the HEAD section of list files in the wwwroot folder, sets the base element for the currently displayed page:
document.write('<ows:HTMLBase/>');
For a given page.htm, either of the following lines,
<BASE Target=_parent Href="http://server/web/page.htm" />
or
<ows:HTMLBase/>
expands to <BASE Target=_parent Href="http://server/web/page.htm">.