Web Form with Integrated Google Map Functionality

The project is to create the functionality shown here: [login to view URL] Brief pseudocode (graphic attached): Step 1: User enters string into #postCode #postCode passes string to #mapFrame #mapFrame updates position based on #postCode Step 2: User clicks on #mapFrame #mapFrame pulls the longitude and latitude of of the marker - #mapFrame passes string to #mapCoord Step 3: User enters data into form as normal User clicks #submitBtn Form is submitted via phpmailer script or alternative, with field values as the email body Google map URL is for user marker is also sent in email body