Two updates on showing multiple routes in an html file based google maps

I need the following three tasks to be completed 1) A controlled delay for getting routes 2) Showing routes using arrays 3) Developing an info panel showing route lengths and a number of additional Information for selected vehicles and totals over all vehicles. Completion of 1 and 2 is the first milestone of the project with a price of $25. Completion of 3 is the second milestone with a price of $30.