I want to ask you a very simple question. Im trying to make a nav-mobile which opens whenever you touch the hamburger button. Everything works fine but I wanted to add a "darker" background to the main page.
I ended up doing something like:
JS CODE:
var Opened = document.getElementById('menu-open');
var Closed = document.getElementById('menu-close');
function OpenNav()
{
if (Opened.getAttribute('src') == "news-homepage-main/assets/images/icon-menu.svg"){
document.getElementById('nav-mobile').style.width = '250px';
document.body.style.backgroundColor = "black";
}
}
function CloseNav()
{
if (Closed.getAttribute('src') == "news-homepage-main/assets/images/icon-menu-close.svg"){
document.getElementById('nav-mobile').style.width = '0';
document.body.style.backgroundColor = "";
}
}
BLACK COLOR CHOICE IS ONLY A TEST, the color I chose is to let you see how the results is. Still doesn't work, look at the image.
Thanks!
I tried so far to change the:
document.body.style.backgroundColor = "black";
to a filter. Still not working. I tried to make even an overlay div, but still with no success.
My guess on what you want here is an overlay with a light dark background that will be placed in front of your main page when the side nav is opened and hidden when the side nav is closed. I would suggest an absolute element that takes full width and height of the page. Something like this:
<div id="overlay"></div>
With the rules below:
#overlay {
width: 100%;
height: 100%;
background: rgba(0,0,0,0.7);
position: absolute;
top: 0;
left: 0;
display: none;
z-index: 2;
}
Have in mind you need to adjust your side-navs z-index to be less than the z-index of the overlay so it will be in front.
And in your function that open and closes the sidebar you should show and hide it accordingly. Something like this:
function OpenNav()
{
if (Opened.getAttribute('src') == "news-homepage-main/assets/images/icon-menu.svg"){
document.getElementById('nav-mobile').style.width = '250px';
document.getElementById('overlay').style.display = 'block';
}
}
function CloseNav()
{
if (Closed.getAttribute('src') == "news-homepage-main/assets/images/icon-menu-close.svg"){
document.getElementById('nav-mobile').style.width = '0';
document.getElementById('overlay').style.display = 'none';
}
}
This question already has answers here:
Why don't my alert message and background color change execute simultaneously?
(3 answers)
Closed 3 years ago.
I need to display an alert box and at the same time cover what is on my HTML page. Basically, I'd like to have a blank or white background when my alert pop-up appears. I tried something like below, but doesn't work.
if (something happens) {
changeBackgroundColor();
if (alert("My alert box")){
} else {
//Return to previous page
window.history.go(-1);
}
}
..
....
.....
function changeBackgroundColor() {
document.body.style.backgroundColor = "white";
}
Changing your background color will not hide any of the elements on your page. You will most likely need an overlay, which can be a simple div styled something like this:
.overlay {
position:fixed;
top:0;
left:0;
right:0;
bottom:0;
z-index:999; /* adjust the z-index as you need it */
background:#fff;
display:none;
}
you can then show the overlay before your alert and hide it afterwards
function toggleOverlay( show ){
document.querySelector('.overlay').style.display = (show === true) ? 'block' : 'none';
}
// ...
toggleOverlay(true);
// Kudos to Kobe for pointing out that the alert is triggered before the repaint
// simple way to solve the problem is a timeout, which will
// make the browser paint the changes before the alert is triggered
setTimeout(function(){
alert('Something');
toggleOverlay(false);
}, 0);
Here is a working jsFiddle: https://jsfiddle.net/UsernamesSuck/cpdrtgb8/2/
The problem is that when alert() is called the rest of the script pauses. A solution is to wrap it in a setTimeout() function to make it async to allow the rest of the code to be executed.
Take a look at the following Fiddle for a possible solution:
https://jsfiddle.net/hckevbtp/
You can create an absolutely positioned div with a z-index greater than all of your content to hide it:
const hide = () => {
var div = document.getElementById('hide')
div.style.display = 'block'
setTimeout(() => {
alert()
div.style.display = 'none'
}, 0)
}
.hide {
position: fixed;
width: 100vw;
height: 100vh;
top: 0;
left: 0;
background-color: blue;
z-index: 1000;
display: none;
}
<p>Content Content Content</p>
<button onclick="hide()">HIDE</button>
<div id="hide" class="hide"></div>
Since alert is blocking, you can immediately remove the style after the alert, which will take effect after the alert is closed.
you can use the display='none' for the container and call the alert in setTimeout() as follows -
function openAlert() {
document.getElementsByClassName('block')[0].style.display = 'none';
setTimeout(function() {
alert('hello world!');
document.getElementsByClassName('block')[0].style.display = 'block';
}, 100);
}
html -
<body>
<div class='block'>
<button onclick={openAlert()}>hello</button>
</div>
</body>
Try this:
if (something happens) {
changeBackgroundColor();
setTimeout(function() {alert("hey");}, 0)
}
..
....
.....
function changeBackgroundColor() {
document.body.style.opacity= "0";
}
You can use below code:
function showMessage() {
var div = document.getElementById('div');
if(div == null){
div = document.createElement('div');
div.id = "div";
}
div.classList.add('alert')
document.body.appendChild(div)
setTimeout(function() {
alert("alert text");
div.classList.remove('alert');
},0)
}
Style:
.alert {
width: 100%;
height: 100%;
top: 0;
left: 0;
position: absolute;
background-color: white;
}
I have a page with a lot of GIFs.
<img src="gif/1303552574110.1.gif" alt="" >
<img src="gif/1302919192204.gif" alt="" >
<img src="gif/1303642234740.gif" alt="" >
<img src="gif/1303822879528.gif" alt="" >
<img src="gif/1303825584512.gif" alt="" >
What I'm looking for
1 On page load => Animations for all gifs are stopped
2 On mouseover => Animations starts for that one gif
3 On mouseout => Animation stops again for that gif
I suppose this can be done in Jquery but I don't know how.
No, you can't control the animation of the images.
You would need two versions of each image, one that is animated, and one that's not. On hover you can easily change from one image to another.
Example:
$(function(){
$('img').each(function(e){
var src = $(e).attr('src');
$(e).hover(function(){
$(this).attr('src', src.replace('.gif', '_anim.gif'));
}, function(){
$(this).attr('src', src);
});
});
});
Update:
Time goes by, and possibilities change. As kritzikatzi pointed out, having two versions of the image is not the only option, you can apparently use a canvas element to create a copy of the first frame of the animation. Note that this doesn't work in all browsers, IE 8 for example doesn't support the canvas element.
I realise this answer is late, but I found a rather simple, elegant, and effective solution to this problem and felt it necessary to post it here.
However one thing I feel I need to make clear is that this doesn't start gif animation on mouseover, pause it on mouseout, and continue it when you mouseover it again. That, unfortunately, is impossible to do with gifs. (It is possible to do with a string of images displayed one after another to look like a gif, but taking apart every frame of your gifs and copying all those urls into a script would be time consuming)
What my solution does is make an image looks like it starts moving on mouseover. You make the first frame of your gif an image and put that image on the webpage then replace the image with the gif on mouseover and it looks like it starts moving. It resets on mouseout.
Just insert this script in the head section of your HTML:
$(document).ready(function()
{
$("#imgAnimate").hover(
function()
{
$(this).attr("src", "GIF URL HERE");
},
function()
{
$(this).attr("src", "STATIC IMAGE URL HERE");
});
});
And put this code in the img tag of the image you want to animate.
id="imgAnimate"
This will load the gif on mouseover, so it will seem like your image starts moving. (This is better than loading the gif onload because then the transition from static image to gif is choppy because the gif will start on a random frame)
for more than one image just recreate the script create a function:
<script type="text/javascript">
var staticGifSuffix = "-static.gif";
var gifSuffix = ".gif";
$(document).ready(function() {
$(".img-animate").each(function () {
$(this).hover(
function()
{
var originalSrc = $(this).attr("src");
$(this).attr("src", originalSrc.replace(staticGifSuffix, gifSuffix));
},
function()
{
var originalSrc = $(this).attr("src");
$(this).attr("src", originalSrc.replace(gifSuffix, staticGifSuffix));
}
);
});
});
</script>
</head>
<body>
<img class="img-animate" src="example-static.gif" >
<img class="img-animate" src="example-static.gif" >
<img class="img-animate" src="example-static.gif" >
<img class="img-animate" src="example-static.gif" >
<img class="img-animate" src="example-static.gif" >
</body>
That code block is a functioning web page (based on the information you have given me) that will display the static images and on hover, load and display the gif's. All you have to do is insert the url's for the static images.
I think the jQuery plugin freezeframe.js might come in handy for you. freezeframe.js is a jQuery Plugin To Automatically Pause GIFs And Restart Animating On Mouse Hover.
I guess you can easily adapt it to make it work on page load instead.
The best option is probably to have a still image which you replace the gif with when you want to stop it.
<img src="gif/1303552574110.1.gif" alt="" class="anim" >
<img src="gif/1302919192204.gif" alt="" class="anim" >
<img src="gif/1303642234740.gif" alt="" class="anim" >
<img src="gif/1303822879528.gif" alt="" class="anim" >
<img src="gif/1303825584512.gif" alt="" class="anim" >
$(window).load(function() {
$(".anim").src("stillimage.gif");
});
$(".anim").mouseover(function {
$(this).src("animatedimage.gif");
});
$(".anim").mouseout(function {
$(this).src("stillimage.gif");
});
You probably want to have two arrays containing paths to the still and animated gifs which you can assign to each image.
found a working solution here:
https://codepen.io/hoanghals/pen/dZrWLZ
JS here:
var gifElements = document.querySelectorAll('img.gif');
for(var e in gifElements) {
var element = gifElements[e];
if(element.nodeName == 'IMG') {
var supergif = new SuperGif({
gif: element,
progressbar_height: 0,
auto_play: false,
});
var controlElement = document.createElement("div");
controlElement.className = "gifcontrol loading g"+e;
supergif.load((function(controlElement) {
controlElement.className = "gifcontrol paused";
var playing = false;
controlElement.addEventListener("click", function(){
if(playing) {
this.pause();
playing = false;
controlElement.className = "gifcontrol paused";
} else {
this.play();
playing = true;
controlElement.className = "gifcontrol playing";
}
}.bind(this, controlElement));
}.bind(supergif))(controlElement));
var canvas = supergif.get_canvas();
controlElement.style.width = canvas.width+"px";
controlElement.style.height = canvas.height+"px";
controlElement.style.left = canvas.offsetLeft+"px";
var containerElement = canvas.parentNode;
containerElement.appendChild(controlElement);
}
}
Pure JS implementation https://jsfiddle.net/clayrabbit/k2ow48cy/
(based on canvas solution from https://codepen.io/hoanghals/pen/dZrWLZ)
[].forEach.call(document.querySelectorAll('.myimg'), function(elem) {
var img = new Image();
img.onload = function(event) {
elem.previousElementSibling.getContext('2d').drawImage(img, 0, 0);
};
img.src = elem.getAttribute('data-src');
elem.onmouseover = function(event) {
event.target.src = event.target.getAttribute('data-src');
};
elem.onmouseout = function(event) {
event.target.src = "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mNkYAAAAAYAAjCB0C8AAAAASUVORK5CYII=";
};
});
.mydiv{
width: 320px;
height: 240px;
position: relative;
}
.mycanvas, .myimg {
width: 100%;
height: 100%;
position: absolute;
}
<div class="mydiv">
<canvas class="mycanvas" width=320 height=240></canvas>
<img class="myimg" data-src="https://media.giphy.com/media/Byana3FscAMGQ/giphy.gif">
</div>
You can solve this by having a long stripe that you show in steps, like a filmstrip. Then you can stop the film on any frame.
Example below (fiddle available at http://jsfiddle.net/HPXq4/9/):
the markup:
<div class="thumbnail-wrapper">
<img src="blah.jpg">
</div>
the css:
.thumbnail-wrapper{
width:190px;
height:100px;
overflow:hidden;
position:absolute;
}
.thumbnail-wrapper img{
position:relative;
top:0;
}
the js:
var gifTimer;
var currentGifId=null;
var step = 100; //height of a thumbnail
$('.thumbnail-wrapper img').hover(
function(){
currentGifId = $(this)
gifTimer = setInterval(playGif,500);
},
function(){
clearInterval(gifTimer);
currentGifId=null;
}
);
var playGif = function(){
var top = parseInt(currentGifId.css('top'))-step;
var max = currentGifId.height();
console.log(top,max)
if(max+top<=0){
console.log('reset')
top=0;
}
currentGifId.css('top',top);
}
obviously, this can be optimized much further, but I simplified this example for readability
A more elegant version of Mark Kramer's would be to do the following:
function animateImg(id, gifSrc){
var $el = $(id),
staticSrc = $el.attr('src');
$el.hover(
function(){
$(this).attr("src", gifSrc);
},
function(){
$(this).attr("src", staticSrc);
});
}
$(document).ready(function(){
animateImg('#id1', 'gif/gif1.gif');
animateImg('#id2', 'gif/gif2.gif');
});
Or even better would be to use data attributes:
$(document).ready(function(){
$('.animated-img').each(function(){
var $el = $(this),
staticSrc = $el.attr('src'),
gifSrc = $el.data('gifSrc');
$el.hover(
function(){
$(this).attr("src", gifSrc);
},
function(){
$(this).attr("src", staticSrc);
});
});
});
And the img el would look something like:
<img class="animated-img" src=".../img.jpg" data-gif-src=".../gif.gif" />
Note: This code is untested but should work fine.
For restarting the animation of a gif image, you can use the code:
$('#img_gif').attr('src','file.gif?' + Math.random());
Related answer, you can specify the number of playbacks on a gif. The below gif has 3 playbacks associated with it (10 second timer, 30 second playback total). After 30 seconds have passed since page load, it stops at "0:01".
Refresh the page to restart all 3 playbacks
You have to modify the gif itself. An easy tool is found here for modifying GIF playbacks https://ezgif.com/loop-count.
To see an example of a single-loop playback gif in action on a landing page, checkout this site using a single playback gif https://git-lfs.github.com/
This answer builds on that of Sourabh, who pointed out an HTML/CSS/JavaScript combo at https://codepen.io/hoanghals/pen/dZrWLZ that did the job. I tried this, and made a complete web page including the CSS and JavaScript, which I tried on my site. As CodePens have a habit of disappearing, I decided to show it here. I'm also showing a simplified stripped-to-essentials version, to demonstrate the minimum that one needs to do.
I must also note one thing. The code at the above link, whose JavaScript Sourabh copies, refers to a JavaScript constructor SuperGif() . I don't think Sourabh explained that, and neither does the CodePen. An easy search showed that it's defined in buzzfeed /
libgif-js , which can be downloaded from https://github.com/buzzfeed/libgif-js#readme . Look for the control that the red arrow below is pointing at, then click on the green "Code" button. (N.B. You won't see the red arrow: that's me showing you where to look.)
A menu will pop up offering various options including to download a zip file. Download it, and extract it into your HTML directory or a subdirectory thereof.
Next, I'm going to show the two pages that I made. The first is derived from the CodePen. The second is stripped to its essentials, and shows the minimum you need in order to use SuperGif.
So here's the complete HTML, CSS, and JavaScript for the first page. In the head of the HTML is a link to libgif.js , which is the file you need from the zip file. Then, the body of the HTML starts with some text about cat pictures, and follows it with a link to an animated cat GIF at https://media.giphy.com/media/Byana3FscAMGQ/giphy.gif .
It then continues with some CSS. The CodePen uses SCSS, which for anyone who doesn't know, has to be preprocessed into CSS. I've done that, so what's in the code below is genuine CSS.
Finally, there's the JavaScript.
<html>
<head>
<script src="libgif-js-master/libgif.js"></script>
</head>
<body>
<div style="width: 600px; margin: auto; text-align: center; font-family: arial">
<p>
And so, the unwritten law of the internet, that any
experiment involving video/images must involve cats in
one way or another, reared its head again. When would
the internet's fascination with cats come to an end?
Never. The answer is "Never".
</p>
<img src='https://media.giphy.com/media/Byana3FscAMGQ/giphy.gif' class='gif' />
</div>
<style>
img.gif {
visibility: hidden;
}
.jsgif {
position: relative;
}
.gifcontrol {
position: absolute;
top: 0px;
left: 0px;
width: 100%;
height: 100%;
cursor: pointer;
transition: background 0.25s ease-in-out;
z-index: 100;
}
.gifcontrol:after {
transition: background 0.25s ease-in-out;
position: absolute;
content: "";
display: block;
left: calc(50% - 25px);
top: calc(50% - 25px);
}
.gifcontrol.loading {
background: rgba(255, 255, 255, 0.75);
}
.gifcontrol.loading:after {
background: #FF9900;
width: 50px;
height: 50px;
border-radius: 50px;
}
.gifcontrol.playing {
/* Only show the 'stop' button on hover */
}
.gifcontrol.playing:after {
opacity: 0;
transition: opacity 0.25s ease-in-out;
border-left: 20px solid #FF9900;
border-right: 20px solid #FF9900;
width: 50px;
height: 50px;
box-sizing: border-box;
}
.gifcontrol.playing:hover:after {
opacity: 1;
}
.gifcontrol.paused {
background: rgba(255, 255, 255, 0.5);
}
.gifcontrol.paused:after {
width: 0;
height: 0;
border-style: solid;
border-width: 25px 0 25px 50px;
border-color: transparent transparent transparent #ff9900;
}
</style>
<script>
var gifElements = document.querySelectorAll('img.gif');
for(var e in gifElements) {
var element = gifElements[e];
if(element.nodeName == 'IMG') {
var supergif = new SuperGif({
gif: element,
progressbar_height: 0,
auto_play: false,
});
var controlElement = document.createElement("div");
controlElement.className = "gifcontrol loading g"+e;
supergif.load((function(controlElement) {
controlElement.className = "gifcontrol paused";
var playing = false;
controlElement.addEventListener("click", function(){
if(playing) {
this.pause();
playing = false;
controlElement.className = "gifcontrol paused";
} else {
this.play();
playing = true;
controlElement.className = "gifcontrol playing";
}
}.bind(this, controlElement));
}.bind(supergif))(controlElement));
var canvas = supergif.get_canvas();
controlElement.style.width = canvas.width+"px";
controlElement.style.height = canvas.height+"px";
controlElement.style.left = canvas.offsetLeft+"px";
var containerElement = canvas.parentNode;
containerElement.appendChild(controlElement);
}
}
</script>
</body>
</html>
When I put the page on my website and displayed it, the top looked like this:
And when I pressed the pink button, the page changed to this, and the GIF started animating. (The cat laps water falling from a tap.)
To end, here's the second, simple, page. Unlike the first, this doesn't have a fancy Play/Pause control that changes shape: it just has two buttons. The only thing the code does that isn't essential is to disable whichever button is not relevant, and to insert some space between the buttons.
<html>
<head>
<script src="libgif-js-master/libgif.js"></script>
</head>
<body>
<button type="button" onclick="play()"
id="play_button"
style="margin-right:9px;"
>
Play
</button>
<button type="button" onclick="pause()"
id="pause_button"
>
Pause
</button>
<img src="https://media.giphy.com/media/Byana3FscAMGQ/giphy.gif"
id="gif"
/>
<script>
var gif_element = document.getElementById( "gif" );
var supergif = new SuperGif( {
gif: gif_element,
progressbar_height: 0,
auto_play: false
} );
supergif.load();
function play()
{
var play_button = document.getElementById( "play_button" );
play_button.disabled = true;
var pause_button = document.getElementById( "pause_button" );
pause_button.disabled = false;
supergif.play();
}
function pause()
{
var play_button = document.getElementById( "play_button" );
play_button.disabled = false;
var pause_button = document.getElementById( "pause_button" );
pause_button.disabled = true;
supergif.pause();
}
pause_button.disabled = true;
</script>
</body>
</html>
This, plus the example.html file in libgif-js, should be enough to get anyone started.
There is only one way from what I am aware.
Have 2 images, first a jpeg with first frame(or whatever you want) of the gif and the actual gif.
Load the page with the jpeg in place and on mouse over replace the jpeg with the gif. You can preload the gifs if you want or if they are of big size show a loading while the gif is loading and then replace the jpeg with it.
If you whant it to bi linear as in have the gif play on mouse over, stop it on mouse out and then resume play from the frame you stopped, then this cannot be done with javascript+gif combo.
Adding a suffix like this:
$('#img_gif').attr('src','file.gif?' + Math.random());
the browser is compelled to download a new image every time the user accesses the page. Moreover the client cache may be quickly filled.
Here follows the alternative solution I tested on Chrome 49 and Firefox 45.
In the css stylesheet set the display property as 'none', like this:
#img_gif{
display:'none';
}
Outside the '$(document).ready' statement insert:
$(window).load(function(){ $('#img_gif').show(); });
Every time the user accesses the page, the animation will be started after the complete load of all the elements. This is the only way I found to sincronize gif and html5 animations.
Please note that:
The gif animation will not restart after refreshing the page (like pressing "F5").
The "$(document).ready" statement doesn't produce the same effect of "$(window).load".
The property "visibility" doesn't produce the same effect of "display".
css filter can stop gif from playing in chrome
just add
filter: blur(0.001px);
to your img tag then gif freezed to load via chrome performance concern :)
I have a script which is dynamically adding a class every time the user moves their mouse in/out of the box (whenever they do, it makes the box larger). I am hoping to make this process loop, so that the large box goes back to a small box. I have attempted to use a if statement to check if the box has the class of "large" then it will revert the class back to "small" in the hopes that the document would repeat itself. Didnt work. Can you suggest any way of achieving this using similar code? I would hope to get this to work with 4 separate classes. Fiddle here: http://jsfiddle.net/cs31g61q/1/
var container=$("#container");
var box=$("#box");
box.mouseenter(function(){
$('#box').removeClass("small");
$('#box').addClass("medium");
});
box.mouseleave(function(){
container.on("mouseenter", "#box", function(){
$(this).removeClass("medium");
$(this).addClass("large");
});
});
<div id="container">
<div id="box" class="small">
</div>
</div>
Does the below snippet produce your desired result?
Snippet:
var box = $('#box');
var classes = ['small', 'medium', 'large'];
var iterator = 0;
box.mouseenter(function () {
$(this).removeClass();
$(this).addClass(classes[iterator]);
iterator += 1;
iterator = iterator > classes.length - 1 ? 0 : iterator;
});
.small {
width: 100px;
height:100px;
background: #000;
}
.medium {
width: 200px;
height: 200px;
background: green;
}
.large {
width:400px;
height: 400px;
background: blue;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.0.0/jquery.min.js"></script>
<div id="container">
<div id="box" class="small"></div>
</div>
This is basically iterating through a set of classes, applying them one by one on every single time mouse enters #box.
Hope this helps.
Fiddle here.
Check your logic: you only need one event listener - it should respond to either mouseenter or mouseleave and cycle through the classes (small, medium, large).
Below is a very simple approach, as demonstrated in the Fiddle above.
// Set up the event listener: every mouseenter or mouseleave
$(document).on('mouseenter mouseleave', "#box", function(){
var currentClass = $('#box').attr("class");
var newClass = ''; // TBD in switch statement.
switch(currentClass) {
case('small'):
newClass = 'medium';
break;
case('medium'):
newClass = 'large';
break;
case('large'):
default:
newClass = 'small';
break;
}
// Remove the current class, add new one.
$('#box').removeClass();
$('#box').addClass(newClass);
});
On my page I have a gallery (just a div) with several images on it. I want to show the first 9 images immediately, then load more images and use CSS transitions to animate between the existing images.
Loading the initial images is easy but I do not know the best way to load the next set of images and then start animating (using the CSS Transform property). So far this is what I have:
HTML (abbreviated):
<div id="mainContainer">
<div class="imageHolder"><img class="homeImages" src="test.png"></div>
<div class="imageHolder"><img class="homeImages" src="test1.png"></div>
<div class="imageHolder"><img class="homeImages" src="test3.png"></div>
</div>
CSS (abbreviated):
img {
display: inline;
position: relative;
margin: 0;
padding: 0;
width: 30%;
}
.changed.opaque {
opacity: 0;
border: 2px solid red;
}
I am looking to do a variety of effects, the most simple one would be to change the opacity and fade one image over the other. To load the next set of images I have this:
Javascript:
var imageArray = [
'test2.png',
'test3.png',
'test4.png',
'test5.png',
'test6.png',
];
var imageNodeArray = [];
for(var i = imageArray.length - 1; i >= 0; i -= 1) {
var img = new Image();
img.onload = function() {
imageNodeArray.push(this);
};
img.src = imageArray[i];
}
document.onclick = function() {
imageNodeArray[0].setAttribute('class', 'changed.opaque');
divs[0].appendChild(imageNodeArray[0])
}
This does add an image to my mainContainer however, even though I can tell from devTools that it has the changed.opaque class applied to it, no opacity is shown on the added image.
I am curious about this. I would also like to know the best way to "stack" images to have a bunch to animate through. I am not sure that appending child is right.... Thank you
function animate() {
var index = Math.floor((Math.random() * document.querySelectorAll('#mainContainer > .imageHolder').length + 1));
var current = document.querySelector('.top');
var next = document.querySelector('.imageHolder:nth-of-type(' + index + ')');
current.className = "imageHolder";
next.className += "top";
}
Should be able to handle and switch between any dynamically inserted images.
Currently using:
.imageHolder {
display: none;
}
.top {
display: inherit;
}
to switch the image is just a simple implementation.
Here's the working fiddle: http://jsfiddle.net/e9dxN/1/
Alternative implementation: http://jsfiddle.net/e9dxN/6/