How to clear A Form Box

[jimmyx1000]

hi all

i have the following web page it has 4 form fields, 2 which are autocomplete
boxes,

it is for street names,
if you type george street , or queen street it will give options to autocomplete box.

what i am trying to do is clear the large boxes below
using a button if the incorrect street name has been entered.

the web page is
http://www.qurantour.com\9\developme...te\remote.html

and the code can be download here:
http://www.qurantour.com/9/developme...ete/remote.zip

thankyou

[jimmyx1000]

Please help guys,