JQuery :: Hiding Fields When (Get A Quote) Not Selected In Dropdown Box

I am creating a simple web form and am having trouble with a quick jQuery script I am using. A few of the fields on my form are not needed if the topic is not "Get a Quote" so I have a script that hides them if "Get a Quote" is not selected in a dropdown box. I does hide them if I select something else but when I go back to "Get a Quote" the fields do not reappear.
$(document).ready(function(){
$("#CAT_Custom_169338").change(function(){
if ($(this).val() == "Get A Quote" ) {
$(".showmore").slideDown("fast"); //Slide Down Effect
} else {
$(".showmore").slideUp("fast");
//Slide Up Effect
}});});