Hi all.
I have question. I want to add my own namespace to xhtml and validate my document. my docoment like below. I cant write my schema file. I need saple xsd file. Help me please.

Code:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xmlns:my="http://www.my.net/docs/gml/my">
  <head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
    <title>page title</title>

    <my:headtag>
            <my:desc>description</my:desc>
            <my:sometag description="tag desc" value="tag value"></my:sometag>
   </my:heaadtag>

</head>

<body>
  <div >
    <div id="ids">

      <my:anothertag attr="value">
	<div>
	         <my:subanothertag attr="value"></bb:subanothertag></my:anothertag>
        </div>
         <my:subanothertag attr="value"></bb:subanothertag>
      </my:anothertag>
    </div>

  </div>
  
</body>
</html>