I have a dependent drop down list box..
My first drop down will display list of teachers..
and second drop down will dispaly the classes they teach..(it is from 6th grade to 10th)..
When user select the 9th grade it will display a another drop down with sub sections..
The third drop down sholud not be visible until the user selects the '9th grade' in second drop down,.
Till now i worked with only two drop downs..
This drop down only visible when the option selected in second drop down box..
can any one have idea on this..