Questions about forms don't know where to go wrong

Questions about forms don't know where to go wrong
I'm going crazy. The problem is: the form is submitted directly with the Submit key area, completely no problem (the practice is to think of a table one-way different page action) but changed to a button with JS implementation of the problem, can go to the page, but the result is, the database, no response, modify the insertion can not be realized! But I have a single table directly button to submit a little problem none!! Depressed Ah! Casually say that I use HTML5, should be nothing different!


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