Javascript - Time Picker

We have two questions where we have entered the following javascript. We want the respondent to be able to pick the opening time in question one and the closing time in question two.....however when the data is entered the opening time is recorded for both question 1 and question 2. thoughts?

Javascript:
Qualtrics.SurveyEngine.addOnload(function()
{
/*Place your JavaScript here to run when the page loads*/

});

Qualtrics.SurveyEngine.addOnReady(function()
{
/*Place your JavaScript here to run when the page is fully displayed*/

var Qbd = "input[id='QR~"+this.questionId+"']";

jQuery("#" + this.questionId + " .InputText").hide();

jQuery("#appt-time").on(" change", function() {

jQuery(Qbd).val(jQuery("#appt-time").val()) ;

});

});

Qualtrics.SurveyEngine.addOnUnload(function()
{
/*Place your JavaScript here to run when the page is unloaded*/

});