Ok, here are some pointers:
-
never run any meaningful code right from plugin body (especially don’t start queuing jQuery everywhere like you do – that’s asking for trouble), always do it at appropriate hooks;
-
learn how to use
$defaultargument inget_option()will save you a lot of typing there; -
learn how to use
plugins_url()for reliable URL building to files; -
learn
submit_button(), not critical but nifty; -
consider storing options in single array;
-
if you use options you should implement uninstall to delete them.
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