The previous post explain how to link to a location in the same page. In summary, it would be as follows:
The hyperlink HTML is written as
<a href="#key">some text</a>
where key is any text you would like to use as the key, and the location to which you want to link to is preceded by
<a id="key" name="key">>/a>
To link to a location in a different page, it will be almost exactly the same except the #key will now be preceded by the URL of the page to which you want to link to so it now become
<a href="URL#key">some text</a>
For example, the URL of the previous post is http://goo.gl/bB0Iu (permalink shortened using Google URL shortener)
Thus, I write the hyperlink HTML as
<a href="http://goo.gl/bB0Iu#linksamepage">some text</a>
As I have used as the key "#linksamepage".
Try clicking http://goo.gl/bB0Iu#linksamepage and see where it takes you.