----------------------------------- Natsu Tue Feb 26, 2013 7:54 pm Validating PHP dropdown menu ----------------------------------- Im trying to make it so that each course can only be selected once, so let's say I select math for the first course, it should not be in the next dropdown menu. So only 1 of each course can be chosen. Here is the code: http://pastebin.com/zUaEXbPS ----------------------------------- Zren Wed Feb 27, 2013 1:42 am Re: Validating PHP dropdown menu ----------------------------------- May the heathen gods smite you for this: What's wrong with a textbox? What are your reasons specifically for using a drop down box for this data field? The formatting of this code makes my head hurt. Anyways. Selecting a option is a client side event that happens after the server finishes generating the page. This is something that should be done with client side scripting. ----------------------------------- iso Fri May 10, 2013 1:16 am RE:Validating PHP dropdown menu ----------------------------------- Javascript is necessary. Also, you really shouldn't be using tables or inline styling.