C :: Head First Google Map Associated With JSON File

This question is from the book Head First C by Griffiths. Starting on p. 110 the book instructs how to develop a JSON file that will be read by the map application on the website: Geo-locater. Starting from a file containing the values of the latitude and longtitude in CSV format a C program is developed to convert it into a JSON file. Up to this point everything worked perfectly although I doubt whether the generated output file conform with the standard of JSON files due to my lack of knowledge. The problems begin after the previous step. First of all, when I try to save the webpage as a whole (from Chrome, Firefox on Ubuntu 12.04.3 32-bit and Windows 7 64-bit) the local copy of the map.html file is useless. When the file is double clicked a white blank page is displayed with no map to be seen. However, when it is saved with the only html file option the map is displayed but the JSON file in the same directory is not read by the program to display the corresponding red markers. What may be the reason behind this and how can I remedy the situation? It has been bugging me a lot these days.

The corresponding files are as follows:

"output.json" Code: data=[
{latitude: 42.363400, longitude: -71.098465, info: 'Speed = 21'},
{latitude: 42.363327, longitude: -71.097588, info: 'Speed = 23'},
{latitude: 42.363255, longitude: -71.096710, info: 'Speed = 17'},
{latitude: 42.363182, longitude: -71.095833, info: 'Speed = 22'},
{latitude: 42.363110, longitude: -71.094955, info: 'Speed = 14'},
{latitude: 42.363037, longitude: -71.094078, info: 'Speed = 16'},

[Code]...

Code:

42.363400,-71.098465,Speed = 21
42.363327,-71.097588,Speed = 23
42.363255,-71.096710,Speed = 17
42.363182,-71.095833,Speed = 22
42.363110,-71.094955,Speed = 14
42.363037,-71.094078,Speed = 16

[Code]...

P.S. I have done exactly as told in the book and I am very unfamiliar with JS. Note that I have also asked the same question previously on Stackoverflow.