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Toggling if a condition is met on table elements

I have a table. Each column has a button at the top. If the td elements below within the column have content in them, then hide the button. If not then display the button and onClick add class active too the td element.
$(document).ready(function (){
$('.button-fill').on("click", function() {
var i=$(this).parent().index();
if($(this).closest("tr").siblings().find("td:eq("+i+")").text()=="")
$(this).hide();
else
$(this).show();
});
<!-- Fill in the td -->
$('.button-fill').on("click", function() {
var i=$(this).parent().index();
$(this).closest("tr").siblings().find("td:eq("+i+")").addClass("active");
//});
});
});
http://jsfiddle.net/ujw0u6au/
I've created a jsfiddle. I don't know what i'm doing wrong? Thank you

Since you have bind the button toggle logic inside button click - you will always have the button in the starting. When you will click on the button only then it will first hide the button and then make the content active.
In case you want this behavior in the starting as soon as the page loads, you should change below line (the 2nd line in your code) from your code -
$('.button-fill').on("click", function() {
to
$('.button-fill').each( function(i,e) {
also, you should not use <!-- Fill in the td --> style of commenting in JavaScript.

I can see you are having two "click" event handler on same class. Instead of it, you can merge it as well.
Here is the optimized version of your code :
JavaScript :
$(document).ready(function (){
$('.button-fill').on("click", function() { //Only one click event handler
var $this = $(this);
var i=$this.parent().index();
var $trSibling = $this.closest("tr").siblings();
$this.toggle($trSibling.find("td:eq("+i+")").addClass("active").text() != ""); //adds the class as well and check the text as well.
})
$(".button-fill").trigger("click");
// explicitly clicking on button to make sure that initially button should not be shown if column text is not empty
});
JSFiddle link : http://jsfiddle.net/ujw0u6au/1/
Is this the same what you want?

#Vijay has the right answer, but as a side note, you need to change this:
if($(this).closest("tr").siblings().find("td:eq("+i+")").text()=="")
to this
if($(this).closest("tr").siblings().find("td:eq("+i+")").text()!="")
if you want to hide the button when there is content, instead of the other way around (notice the != near the end).

Switch between two pages with toggleClass

I've got a page with 2 buttons and 2 divs which are hidden.
When you click the first button the first div should appear, and if you click the second button the second div should appear.
I've managed to get that to work, but what I can't get to work is, that if I have the first div open, and click the second button, I would like it to show the second div and close the first div.
$(document).ready(function() {
$('button.hh').click(function() {
$(".hh_facebook").toggleClass("vis");
$(".hg_facebook").toggleClass("skjul");
});
});
$(document).ready(function() {
$('button.hg').click(function() {
$(".hg_facebook").toggleClass("vis");
$(".hh_facebook").toggleClass("skjul");
});
});
Here is my fiddle:
http://jsfiddle.net/4mWLk/4/
Best regards
Martin

your js code is a bit incorrect.
You call twice $(document).ready(function() { ... Is enough once time.
try this:
$(function(){
$("button.hh").on("click", function(){
$(".hh_facebook").show();
$(".hg_facebook").hide();
});
$("button.hg").on("click", function(){
$(".hh_facebook").hide();
$(".hg_facebook").show();
});
});
see the updated fiddle: http://jsfiddle.net/4mWLk/5/
update if you want to hide div after clicking on same button: http://jsfiddle.net/4mWLk/8/
Use toggle instead of show (for your comment at my answer)
PS: I updated CSS because there was not neccessary.

If you want it with classes so you can have more control over the effect in case you decide to change it later, you should do it like this:
http://jsfiddle.net/4mWLk/7/
$(document).ready(function() {
$('button.hh').click(function() {
$(".hh_facebook").toggleClass("skjul vis");
$(".hg_facebook").removeClass("vis").addClass("skjul");
});
$('button.hg').click(function() {
$(".hg_facebook").toggleClass("skjul vis");
$(".hh_facebook").removeClass("vis").addClass("skjul");
});
});
Html:
<div class="hh_facebook skjul">test1</div>
<div class="hg_facebook skjul">test2</div>
What it does is like this:
first the divs start with skjul class so they are in hidden state.
when a button is pressed, toggle both the skjul and vis classes (one is removed, the other is added)
make sure the second div is hidden.

Identify Which Accordion Panel is Open Bootstrap 3

I have a standard bootstrap 3 accordion panel with a dynamic number of panels. I need to display another div with information specific to the panel that is open. I have trapped the open event and tried to identify the calling panel with the following code:
$(document).on('click', "#accordion_a", function(){
$('#accordion_a').on('shown.bs.collapse', function (e) {
alert('Calling #' + e.currentTarget.id);
})
})
However it just returns the parent panel set "#accordion_a." (and for some reason fires multiple times) So how can I identify which panel is open?

there are some issue in your javascript, I would suggest to use the
$(function() {});
instead of
$(document).on('click', "#accordion_a", function(){});
And then the event shown.bs.collapse must be triggered on the "collapse" block not on a link.
Please check this demo : http://jsfiddle.net/V8h9a/
And let me know if it solves your issue.

How do I stop the page from reloading when clicking on tabs? (jQuery)

I am have an issue with the page reloading. I have written a simple jQuery script that will tab through content. You can see it in action here: http://www.jonathanmaloy.com/tabstack/
The problem is that the page reloads and starts back at the top. I want to be able to have it stay in the same position so when you click on the next tab you wont have to scroll down the page back to it.
preventDefault() and return false do not fix the problem.
If there is anything else you need let me know but with the above link you can see everything.
Here is my current jQuery code:
$(document).ready(function() {
$('#tabnav li').click(function() {
$(this).not('.active').each(function() {
$('.tab').hide();
$('#tabnav li.active').removeClass('active');
});
$(this).addClass('active');
$($(this).attr('title')).fadeIn(450);
});
$('#tabnav li:first').click();
});
Thanks in advance for any help!

Edit: Updated answer based on properly reading the question :-)
As discussed in the comments the problem arises when a new tab is shown and a previously shown tab is hidden. The DOM removal of the previous tab shrinks the page which causes the browser to jump to the top of the page which looks like a page reload, when actually it is not.
The following JavaScript stores the visible tab first and removes it once the new tab has begun to fade in. I also made a few changes to speed up the function by storing some jQuery objects so save re-querying the DOM each time. Also note that you did not need the each() as the same result can be achieved with a different selector, plus in your original code you were effectively hiding all .tab class elements multiple times.
$(function() {
var tabItems = $('#tabnav li'); // save looking this up multiple times
$('.tab').hide(); // hide all initially
$('#tabnav li').click(function() {
// remove active class from all and store the visible tab
tabItems.removeClass('active');
var visibleTab = $('.tab:visible');
// add class to selected list item
$(this).addClass('active');
$(this.title).fadeIn(450); // show new tab
visibleTab.hide(); // hide old one (DOM already has new tab in so page height will not shrink)
});
$('#tabnav li:first').click();
});
You want to either call event.preventDefault() or add a return false; (you don't need the event for this one) to the end of the function.
By default the browser would execute any click functions bound to the element being clicked on and then follow the link (which I assume is href="#" or similar) that causes the browser to reload the page. Since you are binding a function to the click event you are need to stop the click event from continuing and the browser will not continue execution and follow the href.
JavaScript
$('#tabnav li').click(function(event) { // <-- added the eventData map
$(this).not('.active').each(function() {
$('.tab').hide();
$('#tabnav li.active').removeClass('active');
});
$(this).addClass('active');
$($(this).attr('title')).fadeIn(450);
event.preventDefault(); // or return false;
});

One click - two functions

I'm doing a site for a kiosk, so the site goes like a photoslide in-between each div.
I put a layover/mask on the first page, and the layover/mask is removed on a mouse click function at the moment. (As a side note this is for the purpose of hiding the address bar on the first screen for the kiosk as the first page/div is an a tag)
$("#item1").append('<div id="pageLayover"></div>');
$(document).click(function(){
$("#pageLayover").remove();
});
Everytime you click your mouse to remove the layover then you need to click another time then the first a tag page will slide to the second page.
Is there any way I can have one click only not two to remove layover/mask and to let first page to slide to the second page at the same time?
Here is my code on jsFiddle Any code/links/examples would be great help.
Thanks in advance!

Your question is very confusing, but maybe this is the answer you're looking for:
To make the click on the layover in fact two clicks, you can simply trigger the click event of the first panel:
$('#pageLayover').live('click', function(e) { // <-- updated!
$("#pageLayover").remove(); // remove our layover from the DOM
$panels.eq(0).click(); // <-- trigger click event of 1st element of $panels
});
This does not check if the click occurred on the panel though.
You can solve the problem with the multiple layovers with this:
$('#wrapper').scrollTo($(this).attr('href'), 800,{
onAfter: function(id){
if ($('#pageLayover').length == 0) { // <--- new
$("#item1").append('<div id="pageLayover"></div>');
} // <--- new