I am designing a page that contains a drop down box and a bunch of checkboxes.
Currently, all boxes are shown. The of the drop down box as a category field. I
am grabbing those values as well as those for the checkboxes from a database.

In the end, I want to be able to have the user select an option from the drop
down box. Before making this selection they do not see any checkboxes. Based on
the drop down selection, I only want to show the checkboxes that fall under
this the category selected. I know this is possible with Java, but I do not
know exactly how. I am doing something similar currently, but I am using a drop
down box with a textarea field. Whenever the drop down changes, the textarea
will contain different text based on their selection.

Is this possible? If so, how?


Thanks in advance.