How to build a text form in Flash CS4 for getting driving directions in Google Map ?

I am trying to build a form with a single line that a person can put their location "from" data and then hit the (send) button, then this data will be sent to the Google maps page that will already have the "to" data and will display the directions and rest of stuff that Google maps does.How to build a text form in Flash CS4 for getting driving directions in Google Map ?
This is the basic format of the google maps directions link. You will have to craft the source address (saddr) part and send the whole URL to open in a new window.



http://maps.google.com/maps?f=d%26amp;source=s鈥?/a>



I used 134-1 Kew Gardens Rd, Queens, New York 11418 as source (saddr) and 1 1st Ave, Brooklyn, NY 11232 as a destination (daddr)