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Jquery functions Delay shortens with each Interval

I am not sure how to ask this question. I made a jQuery function for a banner.
$(document).ready(function() {
ionanim();
setInterval(ionanim, 12000);
function ionanim() {
$(function () {
$('.ion1anim').fadeIn(500, function () {
$(this).delay(5000).fadeOut(500);
});
});
$(function () {
$('.ion2anim').delay(6000).fadeIn(500, function () {
$(this).delay(5000).fadeOut(500);
});
});
};
});
Link for the full animation : http://jsfiddle.net/L8XHL/11/
But with each intervatl on the setInverval the animations go close to each other after some time they overlap each other.
Did i do anything wrong?

Intervals and animations aren't exact enough to handle the timing that you require. I'd suggest using a self-executing function instead so that it will never overlap.
Also, you are over-using the document ready handler. Please stop.
http://jsfiddle.net/L8XHL/13/
$(document).ready(function () {
ionanim();
function ionanim() {
$('.ion1anim').fadeIn(500, function () {
$(this).delay(5000).fadeOut(500, function () {
$('.ion2anim').fadeIn(500, function () {
$(this).delay(5000).fadeOut(500,ionanim);
});
});
});
}
});
I would further modify this to work more like a slider so that you can add an infinite number of items without having a huge pyramid of code.
http://jsfiddle.net/L8XHL/17/
$(document).ready(function () {
$(".ionbanner .bottom div").first().siblings().hide();
anim();
function anim() {
var curr = $(".ionbanner .bottom :visible");
var next = curr.next();
if (next.length == 0) {
next = curr.siblings().first();
}
curr.delay(5000).fadeOut(500,function(){
next.fadeIn(500,anim);
});
}
});

Or you could try something like this: http://jsfiddle.net/L8XHL/16/
$(document).ready(function() {
var anim1 = function() {
$('.ion1anim').fadeIn(1000, anim1Callback);
},
anim1Callback = function() {
$('.ion1anim').fadeOut(1000, anim2);
},
anim2 = function() {
$('.ion2anim').fadeIn(1000, anim2Callback);
},
anim2Callback = function() {
$('.ion2anim').fadeOut(1000, anim1);
};
anim1();
});

access method inside of require js

I am getting this error:
ReferenceError: overlay is not defined
overlay();
I need to access a method that is inside of requireJS in jquery.vegas. How can i do that?
require(["jquery"], function($) {
require(["files/jquery.vegas"], function(jQuery) {
set_overlay = true;
...
function overlay() {
$.vegas('overlay', {
src : 'overlays/10.png'
});
}
});
});
jquery.vegas
(function($) {
function loading() {
if (set_overlay == true) {
overlay();
}
}
})(jQuery);

In simple words, you can't access the function overlay since it is a closure function inside the annonymous function.
If the above code is in your control then I would suggest you to move the function overlay to a shared context between these two methods
ie
function overlay() {
$.vegas('overlay', {
src : 'overlays/10.png'
});
}
require(["jquery"], function($) {
require(["files/jquery.vegas"], function(jQuery) {
set_overlay = true;
...
});
});
(function($) {
function loading() {
if (set_overlay == true) {
overlay();
}
}
})(jQuery);

Converting javascript functions to jQuery

I have some javascript which I want to convert to jQuery...
I thought it would be easy, but it would appear I was wrong!
The code should resize a textarea depending on the amount of text entered into it.
Here's my code:
function haut() {
if ($(this).scrollTop() > 0) aug();
}
function aug() {
var h = parseInt($(this).height());
$(this).height(h + 10);
haut();
}
function top() {
$(this).scrollTop(100000);
haut();
}
$(document).ready( function() {
$("#txt_test").keyup(function() {
haut();
});
$("#txt_test").focus(function() {
top();
});
});
And here's the original code:
function haut(idt) {
if (document.getElementById(idt).scrollTop > 0) aug(idt);
}
function aug(idt) {
var h = parseInt(document.getElementById(idt).style.height);
document.getElementById(idt).style.height = h + 10 +"px";
haut(idt);
}
function top(idt) {
document.getElementById(idt).scrollTop = 100000;
haut(idt);
}
$(document).ready( function() {
$("#txt_test").keyup(function() {
haut(this.id);
});
$("#txt_test").focus(function() {
top(this.id);
});
});
Here's a jsfiddle if it helps... http://jsfiddle.net/HhRUH/

Please describe your problems specifically when you're asking a question.
So far I see you have the wrong code for binding handlers. It should be:
$(document).ready( function() {
$("#txt_test").keyup(haut);
$("#txt_test").focus(top);
});

The reason you can use $(this) in keyup(function() { ... }); is because of how it was called by the jQuery implementation. See javascript's .call and .apply for more information about setting context (this) manually.
In your code, you're not using haut.call(), but haut(), which will not set the this context. Therefore this means something different in haut when it's invoked like $('*').keyup(haut) than when it is invoked like $('*').keyup(function() { haut(); });. The same goes for your calling aug() from haut.

just send parameter to aug
function haut(idt) {
if ($(this).scrollTop() > 0) aug(idt);
}
http://jsfiddle.net/HhRUH/1/

You're using this wrong. Pass the element instead:
function haut(element) {
if (element.scrollTop() > 0) aug(element);
}
function aug(element) {
var h = parseInt(element.height());
element.height(h + 10);
haut(element);
}
function top(element) {
element.scrollTop(100000);
haut(element);
}
$(document).ready(function() {
$("#txt_test").keyup(function() {
haut($(this));
});
$("#txt_test").focus(function() {
top($(this));
});
});

You are losing scope. You can use:
1) dmitry's answer(and I think the best one)
$("#txt_test").keyup(haut);
$("#txt_test").focus(top);
2) or if you want to do some more things in the callback, you can do it
with using call():
$("#txt_test").keyup(function()
{
haut.call(this);
alert('...');
});
$("#txt_test").focus(function()
{
top.call(this);
});

Stop timer on hover

I'm not a JS coder my any means. I know enough to make things do what I want, but couldn't code from scratch. My issue is:
We have a shopping cart that when you add a product the cart shows itself for 4 secs unless the customer hovers over the cart. I can't seem to get it to stop the timeout when the cursor is hovered over it.
$(document).ready(function () {
setTimeout(function () { $('#ctl00_ctl00_ctlHeader_divOrderProducts').hide(); }, 4000);
});

Store the return of setTimeout() in a variable, and use that to clearTimeout():
// t is a global scope variable.
// Probably a good idea to use something better than 't'
var t;
$(document).ready(function () {
// Store the return of setTimeout()
t = setTimeout(function () { $('#ctl00_ctl00_ctlHeader_divOrderProducts').hide(); }, 4000);
});
$('cart-selector').hover(function() {
if (t) {
// Call clearTimeout() on hover()
clearTimeout(t);
}
});

You need to set your timer to a variable:
var timer1 = setTimeout(function () { ... })
then use:
clearTimeout(timer1)

You need to save the return value of setTimeout() so you can later use it with clearTimeout(). One way to that is like this:
$(document).ready(function () {
var hideTimer = setTimeout(function () {
$('#ctl00_ctl00_ctlHeader_divOrderProducts').hide();
}, 4000);
$('#ctl00_ctl00_ctlHeader_divOrderProducts').hover(function() {
if (hideTimer) {
clearTimeout(hideTimer);
hideTimer = null;
}
});
});
If you want to re-enable the timer when the mouse leaves the cart again (assuming #ctl00_ctl00_ctlHeader_divOrderProducts is the cart), you can do so like this:
$(document).ready(function () {
var hideTimer;
function delayHideCart() {
if (!hideTimer) {
hideTimer = setTimeout(function () {
$('#ctl00_ctl00_ctlHeader_divOrderProducts').hide();
}, 4000);
}
}
delayHideCart();
$('#ctl00_ctl00_ctlHeader_divOrderProducts').hover(function() {
if (hideTimer) {
clearTimeout(hideTimer);
hideTimer = null;
}
}, function() {
delayHideCart();
});
});

This should do it:
$(document).ready(function () {
var timeout = setTimeout(function () { $('#ctl00_ctl00_ctlHeader_divOrderProducts').hide(); }, 4000);
$('#ctl00_ctl00_ctlHeader_divOrderProducts').mouseover(function() {
clearTimeout(timeout);
});
});
You save the timeout as a variable and then call clearTimeout when you mouseover the cart and pass in that timeout.

var timer = window.setTimeout(function () {
$('#ctl00_ctl00_ctlHeader_divOrderProducts').hide();
if(someCondition)clearTimeout(timer);
}

jQuery custom toggle function?

I'm trying to make a custom jQuery toggle function. Right now, I have 2 separate functions, lightsOn and lightsOff. How can I combine these functions to make them toggle (so I can just link to one function)?
function lightsOn(){
$('#dim').fadeOut(500,function() {
$("#dim").remove();
});
};
function lightsOff(){
$('body').append('<div id="dim"></div>');
$('#dim').fadeIn(250);
};

function toggleLights()
{
var $dim = $('#dim');
if ($dim.length)
{
$dim.fadeOut(500, function ()
{
$dim.remove();
});
}
else
{
$dim = $('<div/>', {id: 'dim'});
$('body').append($dim);
$dim.fadeIn(250);
}
}
Demo: http://jsfiddle.net/mattball/hxL8s/

function toggleLights(){
if ($("body").has("#dim")) {
$('#dim').fadeOut(500, function() {
$("#dim").remove();
});
} else {
$('body').append('<div id="dim"></div>');
$('#dim').fadeIn(250);
}
}