Forms: Making a drop-down-list submit the form?

I programmed a Halo 3 Emblem Generator, but its annoying because every time you change something, you have to click submit.

I was wondering if there is a way so that if any 1 clicks an option from the drop down list, then it would automatically send in that form like if it was a submit button

Here is what I want it to be done too.

http://www.deltadesigns.org/texasmd/generator/emblem/


Any 1 know how to achieve this?

nvm, closed please, figured it out
onchange='this.form.submit()'