PHP/mySQL help or advice

Hi All I have been trying to write a database and scripts for a calendar that shows which days are booked and have failed at each point. What i would like it to do is to show a calendar which have the dates that are booked in a cell which are colour coded (say red) when it is unavailable and say white when available. The admiministartor should be able to enter multiple dates at a time (say a holiday is booked for 5 days). perhaps a section for nortes that is only available for admin use only would be handy. An option to view 2 months at a time or perhaps the whole year would also be nice. I have downloaded various scripts and tried to write my own but I cannot seem to be able to enter multiple dates or colour code the output. Can anyone help me or perhaps someone already has a script & database that does this and would be willing to share. Otherwise it there a script already out there that will do this - all the one that I can find seem to do too much by allowing multiple users and storing a lot more data which is something I do nort need. Any help would be appreciated as I am tearing my hair out at the moment. Thanks for your time Ray Healy