Hi everyyone! I can't handle with overlapping. I want boxes to turn red while they are overlapping, but when it finished they don't turn into theit old colours. I don't understand why the frames don't change. I used 'else' and 'inverse' for overlapping but it didn't work. Is there anyone can send me an example?? Thanks for your help! <img src="smileys/smiley1.gif" border="0" align="middle" />