Web-portal for Surveys - Urgent!

Hi, we require a web-based survey portal to be developed. here are some specifications: Front-End: PHP/HTML Back End: MySQL Core requirements are: 1. Cross platform compatibility for use with any browser iPad iPhone Android Tablet Android phone Google Chrome Firefox Internet explorer. 2. Back end: survey results need to be stored in a Database (MySql or similar) 3. Admin portal with ability to: Modify/add questions Modify/add answers Produce reports on different types of answers Graphs on reports (Pie chart, column or bar graph) similar to Excel ones. Some "plain English" explanation: There is a person, with an iPad/notebook/android tablet, that meets people at the airport, shopping centre, shop front etc. That person is a user. User does not answer questions, he asks questions from the respondent (surveyed person), from the crowd. He opens the internal web-page and logs in with his username, password, siteID to the system and selects the survey that he wants to ask today (there will be multiple surveys, e.g. a new one every month). He gets a list of questions. Then he starts asking people that come up to him the questions and fills out the form. As soon as the form is filled out he would press submit button and results gets saved into the database. All fields are now cleared up, ready for the next person. Imagine a person with a notepad and each page in the notepad is a survey for 1 person. And then in the report it becomes one line, each new line is like a new page in the notepad or a new person’s answers. This is a typical site. There could be multiple sites, they can’t be connected. One site is a shopping centre, the other one is an airport, etc. There is a local admin in each site, that creates new users, new surveys or deactivates surveys. He can also look at reports. There is also a global admin, that can create new sites and global surveys, visible to all sites. So when the user logs in to the system, he will see a list of reports like this: Survey 1 – Global Survey 2 – Local Survey 3 – local etc Attached documents may explain it better. Feel free to ask questions.