How to use many submit buttons in an one html form

Question

I'm doing a simple program to insert, edit, delete data from a web page to an database
but the problem is that in an html form , you are allowed to put only 1 submit button.
I heard that you can take the action of many buttons, for a one form using java script
if anyone have a better idea or else have this simple java script, please help me
Thank you very much

Answer 1

Give the buttons an unique name.
In the servlet just check if the button is pressed or not by determining if HttpServletRequest#getParameter() doesn't return null for the button name.There are a couple of "gotchas" when using this technique of dispatching with certain html controls. Most of them browser related.
If you are using <input type="image" name="myButton"> as a submit button, be aware that Internet Explorer will submit the parameters "myButton.x" and "myButton.y" giving the x,y co-ordinates of where you clicked on the button. And won't submit any other value. So calling request.getParameter("myButton") would return null. You have to test for request.getParameter("myButton.x");
If you are using <input type="button" name="myButton"> with Internet Explorer all of the buttons are deemed "successful". So calling request.getParameter("myButton") will never return null.
At least thats the way it works in IE6. And thats what I'm stuck with at work right now, so thats what gets used. It may be fixed in later versions, but I don't have any info on that.
Cheers,
evnafets