create a web app to generate tables and make modifications to it

Avg Bid (EUR)
Project Budget (EUR)
€30 - €250

Project Description:
I need someone who can develop a web application that allows the user to generate tables.
The user must be able to specify a number of rows and columns and also a number of tables. The tables are then generated.
The user also must be able to make modifications to the table:
- the user should be able to write text in the cells
- the user should be able to draw things on the table using a pencil tool, and should also be able to remove what he has drawn
- the user should be able to cover cells with a color, that hides everything that was inserted in the cell, also the user should be able to remove this color, to make things that were inserted in the cell visible again
- the user should be able to add background colors to cells

Here is an example that is a bit similar to the project:

Additional Project Description:
12/06/2012 at 15:05 CET
The table width and height should also be adjustable.

Skills required:
AJAX, HTML, Javascript, PHP
About the employer:
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