need simple java/html script

I am posting an information icon on my webpage. if the user clicks on this icon or does a mouseover, then a display box would be shown on the page, which would give more information. There are many free scripts online, but i need some customization:- 1) The display box is not a new browser window, but a box only 2) I need ability to show html formatted information in this display box 3) i can use a javascript but i do not want to rely on long additional files which? i would need to install on my website for the above 4) the display box would have a close button on the top right corner, where if the user clicks, the box would close 5) I would be able to specify the Xpos, Y pos of the display box to appear on the webpage. If you have a ready script, or if you can make one quickly, please bid on this project. i need this asap. for more questions, let me know ## Deliverables i need the script to work in all browsers and it should also have an option to display the information box for people where javascript is turned off.