Joomla Gantchart extension

Request for proposal. Statement of Purpose : The purpose is to create and design a lightweight frontend editable gantchart-like Joomla 2.5 extension. Scope of Work: The extension will be an easy-to-use joomla 2.5 extension. It will be used by small to medium sized construction companies. It will be used by companies when planning building and infrastructure projects. Outcome and Performance Standards: The extensions design must be easy-to-use and edit. Ex. [login to view URL] Functions of gantchart Joomla 2.5 extension. 1. At least same functions and design as in [login to view URL] 2. Task re-ordering with drag and drop as in: [login to view URL] 3. Creation of tasks and events. 4. Assign resorources as in [login to view URL] 5. Intend and outtend taskfunctions as in [login to view URL] 6. Extra columns for working hours (for later functions) 7. Extra columns for material cost (for later functions) 8. Printingfunctions and .pdf functions. 9. Save, open and edit functions for each individual joomla user within Joomla. 10. Save and open from local drive. Deliverables: The outcome should be a browser independent Joomla 2.5 extension. Fully functional and easy to use. It should be in english but needs to be easy to translate (separate language file). The project needs to be finished within 4 months from startdate planned to 2012-05-15 Term of Contract: Contract will be signed before work start. Points of contact for future correspondence: Questions and proposal needs to be in english. Last day for your proposal 2012-04-17. Payments When work start 25% of contract sum. When app. 60% of work done 50% of contract sum. When project finished and functions tested and verified 25% of contractsum. Yours sincerly We are looking forward for your proposal! Emil Appelkvist