Why use java - PHP and MySQL can do the same thing but much quicker, and do you realy want to have your viewers to have to download the java script every time the view or refresh the page. PHP's math functions are more powerfull anyway.
As for the zip code formula - ask UPS they will give it to you.
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What Did One Women Say To Another Women?
Who Cares They Both Are Full Of Shit Anyway!
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