Map Tracking with HTML5+javascript for PhoneGap

Hi, I want create a tracking web page 1. A map page with option to add an ID 2. ID is generated from another page by a client 3. This ID will allow me track another phone user (user who sent I from NO: 2) 4. User in No:2 can have a button to stop tracking or User on No:1 can end the tracking session this is a 3 page simple website, nothing fancy, you should be able to complete in 1hour if you are competent. Michael