HTML select options close div

[CodeCrack]

I'm new to JavaScript, so this might be very easy for a lot of you.I have a HTML select object with some options in it. The whole SELECT is in a small div. The only thing I like to achieve is to close the div everytime I clock on one of the options. Now, every option does something else, that's no problem. But I can't seem to tell all of them to close this div. Is it something about this.id ??Thanks