Website needed mostly in php and javascript. Solid PHP, JavaScript (Mootools, jQuery), CSS and basic Flash knowledge are required. (repost)

We need a website done mostly in php and javascript. Solid PHP, JavaScript (Mootools, jQuery), CSS and basic Flash knowledge are required. Basic design will be supplied. Examples of the functionalities required: * A navigation bar (menu) - included on all pages (done in Javascript - the navigation bar will e displayed on click). The navigation bar will include links to the home page, about us etc. * 6-8 main categories (home, about us etc) [+ 6-8 subcategories] * every page will have a few images(a slideshow done using a jQuery Fade in/Fade out effect) running in *background* and *a transparent layer* over these images for the text (this transparent layer will be displayed on click) * a video page with 4-5 videos: will be implemented using Flash, also an audio player is needed (using Flash; the streaming has to be continue through all the pages) * 2 forms done in php (a contact form and another more complex submission form - appx10 fields and the possibility of attaching a few files in this contact form) * The site has to fit well in all in all types of screen resolution * The site has to be "mobile friendly" or (if not possible) a simpler mobile version of the official site is needed * The site has to be cross-browser compatible * The site must comply with W3C WAI level A Guidelines. * All code on the site should validate to W3C specifications. CMS specifications: * Ability to create new main categories and subcategories * Ability to manage, edit, create, delete content (on all pages) * Ability to upload, change, delete images * Ability to upload, delete videos (on "Videos" page) * All site URLs are search engine friendly (optimisation built in) * Ability to create new site administrators as required