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How to hide the next button on qualtrics until a text field is filled in with text?

I have a survey with two questions on the page (one that is multiple choice) and one that is a text entry question.
I want to hide the next button until the text entry question has been filled out but I've only been able to hide the next button indefinitely and it seems to not reappear after the text field has been filled in.
Qualtrics.SurveyEngine.addOnload(function()
{
this.hideNextButton();
(function() {
$('form > input').keyup(function() {
var empty = false;
$('form > input').each(function() {
if ($(this).val() == '') {
empty = true;
}
});
if (empty) {hideNextButton ()} else {showNextButton ()}
});
});
});

You have some syntax errors. It looks like you are trying to use jQuery instead of Prototypejs. Besides that, you need to restrict your input element search to the question and there is only one input field so you only need one function. Try this (edited to defer initial next button hide):
Qualtrics.SurveyEngine.addOnload(function() {
function hideEl(element) {
element.hide();
}
var nb = $('NextButton');
hideEl.defer(nb);
$(this.questionId).down('.InputText').on('keyup', function(event) {
if(this.value.length == 0) nb.hide();
else nb.show();
});
});

call different events based on user input style javascript

I have a div which contains an input element to enter some values. These values are added just above the div as a list element upon pressing enter or onFocusOut event. To this point it is fine. But if user types some value and does not press enter and directly clicks on save button, the onFocusOut function for that div should not be called. Instead it should take that typed value and call some save function. Do you have any suggestion on how to detect it?
My code snippet is here
JS:
divInput.onkeypress = function (event){
return someTestFunc();
}
divInput.tabIndex="-1";
$(divInput).focusout(function (e) {
if ($(this).find(e.relatedTarget).length == 0) {
addToList();
}
});

It is not a very delicate solution, but you could use a setTimeout before adding the item to the list and clear the setTimeout on save.button click.
Try this:
var $saveButton = $('#exampleButton')[0],
$divInput = $('#exampleInput')[0],
timedEvent = -1;
$($saveButton).on('click', function(event){
if(timedEvent) {
clearTimeout(timedEvent)
}
alert('not add to list & save');
})
$divInput.tabIndex="-1";
$($divInput).on('focusout', function(e) {
timedEvent = window.setTimeout(function() {
if ($(this).find(e.relatedTarget).length == 0) {
alert('add to list');
}
}, 200);
});
Check this working fiddle

preventing javascript keyup function effect when the user is in a text box?

Currently I use the following code to allow the user to "flip through" content on my web app:
$(this).keyup(function(e) {
if(e.which == 37) {
document.location = $("#prev_button").attr('href');
}else if(e.which == 39) {
document.location = $("#next_button").attr('href');
}
});
The problem is that if the user is in the search form at the top of the page, I do not want the arrow keys to redirect the page (instead they should act as they normally would without the functionality, i.e. allow the text cursor to move around the text).
the form id is "searchForm" - can I add a clause to the the if statement which evaluates to false if the search form is selected?

You can stop the propagation of the event when in the textbox so the event doesn't make it to your other handler:
$('#searchbox').keyup(function(e) {
e.stopPropagation();
});

I would use something like: Demo
$(this).keyup(function(e) {
if(~['input', 'textarea'].indexOf(e.target.tagName.toLowerCase())) return;
if(e.which == 37) {
document.location = $("#prev_button").attr('href');
}else if(e.which == 39) {
document.location = $("#next_button").attr('href');
}
});
This way you can exclude all <input> and <textarea> elements.
IMO, excluding just #searchbox isn't a great solution because in the future you may change its id or include other text fields, but forget you must reflect changes in the exclusion script.

Check out this thread :)
Find if a textbox is currently selected
function checkFocus() {
if ($(document.activeElement).attr("type") == "text" || $(document.activeElement).attr("type") == "textarea") {
//Something's selected
return true;
}
}

Accordion like form, will not work for me, can anyone see what i've done wrong here?

I'm make a rather long form, and I want to be able to break the form down into tabbable section, then when leaving that last input/select box, the next section will slide open, while the previous slides shut. I'm also wantning to have the fieldset legend, clickable to achieve the same thing.
A good example of what I'm looking for can be found here: http://jsfiddle.net/s4vcX/
Here is what I'm currently working with: http://jsfiddle.net/AUf3U/
If you'd like, you can see the current JavaScript code here:
$("fieldset label").hide();
$("fieldset ul").hide();
$("fieldset:first label").show();
// show when legend is clicked while hiding rest
$("legend").bind("click", function () {
$("fieldset label").not($(this).nextAll("label")).hide();
$(this).nextAll("label").show();
});
//handle shift-tab on first input of each field set
$("fieldset").find("input:first").bind("keydown", function (e) {
if( e.shiftKey && e.which == 9 ) {
$(this).closest(".hidesfieldset").find("label").hide();
var previous = $(this).closest(".hidesfieldset").prev(".hidesfieldset");
if(previous.length==0)
previous = $(this).closest("form").find(".hidesfieldset:last");
previous.find("label").show();
previous.find("input").last().focus();
e.preventDefault();
}
});
//handle tab on last input of each field set
$("fieldset").find("input:last").bind("keydown", function (e) {
if( !e.shiftKey && e.which == 9 ) {
$(this).closest(".hidesfieldset").find("label").hide();
var next = $(this).closest(".hidesfieldset").next(".hidesfieldset");
if(next.length==0)
next = $(this).closest("form").find(".hidesfieldset:first");
next.find("label").show();
next.find("input").first().focus();
e.preventDefault();
}
});
If someone can point out what`s going wrong here, I would be incredibly greatful, this has become a huge pain in the ass, and have to impelment this across about 50 forms, so changing the structure of my form is not necessarily a good thing.

The problem is your input selector, since you are using element selector it selects only elements with tag input but in your first fieldset the last element is a select element.
Try to use the :input selector
//handle shift-tab on first input of each field set
$("fieldset").find(":input:last").bind("keydown", function (e) {
if (e.shiftKey && e.which == 9) {
$(this).closest(".hidesfieldset").find("label").hide();
var previous = $(this).closest(".hidesfieldset").prev(".hidesfieldset");
if (previous.length == 0) previous = $(this).closest("form").find(".hidesfieldset:last");
previous.find("label").show();
previous.find("input").last().focus();
e.preventDefault();
}
});
//handle tab on last input of each field set
$("fieldset").find(":input:last").bind("keydown", function (e) {
if (!e.shiftKey && e.which == 9) {
$(this).closest(".hidesfieldset").find("label").hide();
var next = $(this).closest(".hidesfieldset").next(".hidesfieldset");
if (next.length == 0) next = $(this).closest("form").find(".hidesfieldset:first");
next.find("label").show();
next.find(":input").first().focus();
e.preventDefault();
}
});
Demo: Fiddle

Disabling/enabling a button based on multiple other controls using Javascript/jQuery

I have a bunch of controls:
When a user clicks the Generate button, a function uses all of the values from the other controls to generate a string which is then put in the Tag text box.
All of the other controls can have a value of null or empty string. The requirement is that if ANY of the controls have no user entered value then the Generate button is disabled. Once ALL the controls have a valid value, then the Generate button is enabled.
What is the best way to perform this using Javascript/jQuery?

This can be further optimized, but should get you started:
var pass = true;
$('select, input').each(function(){
if ( ! ( $(this).val() || $(this).find(':selected').val() ) ) {
$(this).focus();
pass = false;
return false;
}
});
if (pass) {
// run your generate function
}
http://jsfiddle.net/ZUg4Z/
Note: Don't use this: if ( ! ( $(this).val() || $(this).find(':selected').val() ) ).
It's just for illustration purposes.

This code assumes that all the form fields have a default value of the empty string.
$('selector_for_the_parent_form')
.bind('focus blur click change', function(e){
var
$generate = $('selector_for_the_generate_button');
$generate.removeAttr('disabled');
$(this)
.find('input[type=text], select')
.each(function(index, elem){
if (!$(elem).val()) {
$generate.attr('disabled', 'disabled');
}
});
});
Basically, whenever an event bubbles up to the form that might have affected whether the generate button ought to be displayed, test whether any inputs have empty values. If any do, then disable the button.
Disclaimer: I have not tested the code above, just wrote it in one pass.

If you want the Generate button to be enabled as soon as the user presses a key, then you probably want to capture the keypress event on each input and the change event on each select box. The handlers could all point to one method that enables/disables the Generate button.
function updateGenerateButton() {
if (isAnyInputEmpty()) {
$("#generateButton").attr("disabled", "disabled");
} else {
$("#generateButton").removeAttr("disabled");
}
}
function isAnyInputEmpty() {
var isEmpty = false;
$("#input1, #input2, #select1, #select2").each(function() {
if ($(this).val().length <= 0) {
isEmpty = true;
}
});
return isEmpty;
}
$("#input1, #input2").keypress(updateGenerateButton);
$("#select1, #select2").change(updateGenerateButton);
The above assumes that your input tags have "id" attributes like input1 and select2.