Redirect web pages

I need to redirect a web page to a sub-directory. Are there any suggested ways of doing this that the search engines will not penaltize you for?

I am presently using the following in my HEAD section of my main page:

<SCRIPT>
location.href = "http://www.smartdictionary.com/cgi-bin/lexicon/browse.cgi"
</SCRIPT>

Is this a recommended method of doing this redirection? Is there a better solution?

You should use 301 redirects.
The redirect u r using is Javascript and it's not a good method.

What kind of server r u running. Php, asp, etc. Just do a search on 301 redirect.

Thanks I added the 301 redirect and it works very well.