In a typical round of doing Internet Explorer clean up at the end of a project, I had to figure out why my <button>Submit</button> wasn't submitting a form in IE.

I did a search on "html button" and went to the w3c HTML 4.01 specifications:

type = submit|button|reset [CI]

This attribute declares the type of the button. Possible values:

submit: Creates a submit button. This is the default value.
reset: Creates a reset button.
button: Creates a push button.

So the default is submit. But Internet Explorer has obviously forgotten this in IE6 and IE7. I found it worked without type="submit" in Firefox, Safari, Chrome and Opera. I haven't tested in IE8 because I don't have it installed. Maybe someone wants to check it out? Here is a demo page.

So I guess we should get in the habit of using:

<button type="submit">Submit</button>