Button
BUTTON element is related to input element (of types button, submit, and reset) but carries some extra weight particularly when used as a submit type button. The label of the button is defined between the start and end tags rather than being assigned as an attribute separately. IMG element can be used to generate the label of the button by including an IMG element. When a BUTTON element is assigned a submit button type, the browsers submit the NAME and VALUE attributes of the button to the server as a name or value pair like other form elements. BUTTON element is usually used within a FORM element. For Example:
<BUTTON TYPE="button" onClick="FirstButton()">SEO</BUTTON>
<BUTTON TYPE="submit" NAME="Type" VALUE="SEO">Search Engine Optimization</BUTTON>
<BUTTON TYPE="reset"><IMG SRC="SEO.gif" HEIGHT=18 WIDTH=20></BUTTON>