If you want a select drop down option to show/hide specific div contents, here’s a simple solution using jQuery.
$(document).ready(function(){
$("#select_id").change(function(){
var test = $(this).val();
if(test==\'option value to show\') {
$("#container").show("slow");
}else {
$("#container").hide("slow");
}
});
HTML code will look something like this.
Hey! here are your hidden contents.
Cheers!