I have finished the layout design (html & css), what should i do to convert it to a wordpress theme

http://www.faressoft.org/BlueCristalTheme

And

http://www.faressoft.开发者_如何学Goorg/BlueCristalTheme/postView.php

What is the next step ?

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See http://codex.wordpress.org/Theme_Development among other docs at wordpress.org