[Javascript] is there a way to hide the Select or Drop down box

[Scott.Wiseman]

I want to be able to search for a value
and get the text part...

I have field...
pLease enter office number
when they do I want to give them the office name next to it...

but how can I store this information with out reloading the page...

so I thought I could put this into a drop down..

or maybe an array...

what do you think?