Debug javascript / html5 + minor changes

Debug javascript / html5 + minor changes

Advanced javascript!

We created a map with points: [url removed, login to view]

points are loaded from a database, using json files.

The script is based on a script that is not our own:

[url removed, login to view]

We changed this script in order to show only points

But since i'm no javascript developper, i think there is still a lot unnecessary code in the script.

what we need:

-remove all unnecessary code

since we only draw points, and the script is originally used to draw polygons, there is still unnecessary code

-Debug script

1. sometimes an error shows up: Uncaught TypeError: Cannot read property 'firstChild' of null (line 123)

2. when hovering over a point with style 2 (line 25) (half transparent light yellow points) the point stays the hover over color.

3. script have to work in same browsers as the polygons script does

-Optimize script.

-Add click function to points:

(without slowing script down)

If a point is clicked: do something with point ID

-make clear overlay function (button below map)

-make specific_points function (button below map)

(eg. only show points with ID = 1,2,4,5,6,7)

-Remove [url removed, login to view] request (not necessary)

You can copy/past code and modify and test on your own server.

please view source of the pages before bidding.

it's not the easiest javascript.

Evner: Javascript

Se mere: read property firstchild null, what is.json, test a javascript, javascript html 5, javascript developper, it developper, html5 on line, html5 developper, html5 button, developper html, color changes, add transparent, javascript debug, what is json, javascript draw line, think debug, minor, minor html, json script, javascript html5

Om arbejdsgiveren:
( 11 bedømmelser ) enschede, Netherlands

Projekt ID: #1532820

Tildelt til:


When you said hard, I thought you really meant hard! Please see my bid details in PM.

$100 USD in 2 dage
(21 bedømmelser)

6 freelancere byder i gennemsnit $179 på dette job


Ready to start now! please check pmb

$200 USD in 3 dage
(15 bedømmelser)

Hi, Can do this for you.

$150 USD in 3 dage
(7 bedømmelser)

Hi, I am a software engineer with an exp of over 5 years in Java, Javascript, JSP, XML, Oracle and other web based technologies and i can easily give you the best quality code for this project. Thanks, Jayesh

$175 USD in 2 dage
(1 bedømmelse)

Check PMB please.

$250 USD på 1 dag
(0 bedømmelser)

js experienced and ready to get started right away.

$200 USD in 3 dage
(0 bedømmelser)