Basically, what I'm trying to do is shuffle through images using some JavaScript code. All it does is change the display style of the current image to block, and at the same time change the previous one to none.
The HTML code:
<body>
<img src="http://bit.ly/yOqqbg" id="image1" style="display: block;">
<img src="http://bit.ly/dezBUZ" id="image2" style="display: none;">
<img src="http://bit.ly/IvM5HE" id="image3" style="display: none;">
</body>
The JavaScript code:
var id = ["image1", "image2", "image3"]; //Array with the id's in the document you want
to shuffle through
var i = 0; //Set inital array element
initiateTimer(); //Get the loop going
function initiateTimer() {
if (i > id.length) {
i = 0;
initiateTimer();
}
setTimeout(function() { changeElement(); }, 2000); //2000 = 2 seconds
}
function changeElement() {
if (id === 0) {
document.getElementById(id[2]).style.display = 'none';
document.getElementById(id[i]).style.display = 'block';
} else {
document.getElementById(id[i - 1]).style.display = 'none';
document.getElementById(id[i]).style.display = 'block';
}
i += 1;
initiateTimer();
}
when i === 3 you will have problems
if (i > id.length) {
should become
if (i >= id.length) {
UPDATE: http://jsfiddle.net/HgNuc/
Related
I need to show three images one by one with using javascript setinterval function can you please any one help me.
Bellow is my html code.
<div class="imageHolder">
<img src="http://lorempixel.com/400/200/sports/" style="display:none;" class="image1" border="0" />
<img src="http://lorempixel.com/400/200/sports/1" style="display:none;" class="image2" border="0" />
<img src="http://lorempixel.com/400/200/" style="display:none;" class="image3" border="0" />
</div>
<head>
<script type="text/javascript">
function start() {
var images = document.querySelectorAll('.imageHolder img');
var images_count = images.length;
var image_index = false;
var delay = 3000; // 3 seconds delay
function animateImageHolder() {
if (false !== image_index) {
images[image_index].style = 'display:none';
image_index++;
image_index = (image_index < images_count ? image_index : 0);
} else {
image_index = 0;
}
images[image_index].style = 'display:inline';
}
animateImageHolder();
setInterval(animateImageHolder, delay);
}
</script>
</head>
<body onload="start()">
<!-- ... -->
This question is pretty much like "do my job for me" but you are honest in your english.
You did not say how long each image should be visible so I set it to 3 seconds (interval = 3000).
I recommend you to set the style attribute of the first image to be style="display:block" and the rest to style="display:none".
function slider(element) {
var next_image = 0
, interval = 3000
, images = Array.prototype.filter.call(element.children, function(child) {
return child.tagName === "IMG";
})
;
setInterval(function() {
images.forEach(function(image, i) {
image.style.display = i === next_image ? "block" : "none";
})
next_image = (next_image + 1) % images.length;
}, interval);
}
slider(document.querySelector("div.imageHolder"))
I made an Image-Slider based on Radio Buttons (thanks to some advice of user A.V) as you can see here:
Now, there is one last thing that I would love to do but I have no idea how. I would like to be able to switch to the next image by clicking on the image itself (of course with the selection jumping to the next button, too).
Would be awesome if someone could help. Thanks in advance!
JSFiddle
http://jsfiddle.net/v4phdL3p/8/
Add class "sliderImage" to your image placeholders and then use this code:
$(".sliderImage").click(function(){
var name = $(this).attr("name")
var selector = "input[checked][name='" + name +"']"
currrentRadio = $(selector)
currrentRadio.removeAttr("checked")
if (currrentRadio.next().attr("name") === name) {
currrentRadio.next().attr('checked', 'checked').prop("checked",true).trigger("click")
} else {
var nextRadio = "input[name='" + name + "']"
firstRadio = $(nextRadio)[0]
$(firstRadio).attr('checked', 'checked').prop("checked",true).trigger("click")
}
})
*EDIT* change changeImage to this (to allow clicking of object to not affect functionality):
Here is the working fiddle:
http://jsfiddle.net/xhmrwhtv/3/ **NEW modified Working Fiddle**
function changeImage(imgName, obj)
{
image = document.getElementById(obj.name);
image.src = imgName;
var name = obj.name;
var selector = "input[checked][name='" + name +"']";
currrentRadio = $(selector);
currrentRadio.removeAttr("checked");
$(obj).attr('checked', 'checked').prop("checked",true).trigger("click");
}
Have you tought about a simple JavaScript or jQuery script? This would not be hard to do, here is an example:
jQuery:
function slideSwitch() {
var $active = $('#slideshow IMG.active');
if ($active.length == 0) $active = $('#slideshow IMG:last');
var $next = $active.next().length ? $active.next()
: $('#slideshow IMG:first');
$active.addClass('last-active');
$next.css({ opacity: 0.0 })
.addClass('active')
.animate({ opacity: 1.0 }, 1000, function () {
$active.removeClass('active last-active');
});
}
$(function () {
setInterval("slideSwitch()", 3000);
});
html:
<div style="width: 100%; position: absolute; margin-top:5%;">
<div id="slideshow" style="display: inline-block; position:relative;">
<img src="pictures/coinWars/1.jpg" class="active" />
<img src="pictures/coinWars/2.jpg" />
<img src="pictures/coinWars/3.jpg" />
<img src="pictures/coinWars/4.jpg" />
<img src="pictures/coinWars/5.jpg" />
<img src="pictures/coinWars/6.jpg" />
<img src="pictures/coinWars/7.jpg" />
<img src="pictures/coinWars/8.jpg" />
<img src="pictures/coinWars/9.jpg" />
<img src="pictures/coinWars/10.jpg" />
</div>
That will make a simple slide show of pictures, you can change it to allow it to change on click, instead on on the interval.
This is my code, but feel free to use it and modify it as necessary.
First change you function to access the name not the object
function changeImage(imgName, name)
{
image = document.getElementById(name);
image.src = imgName;
}
Then then add to img onclick:
<img src="http://placehold.it/100x100" name="image1" id="image1" onclick="changeImageClick(1);"><br>
Then I added variables (just for the first set of changes:
var images1 = ["http://placehold.it/100x100","http://placehold.it/200x200","http://placehold.it/300x300"];
var images1num = 0;
images1num is for what current image src you are on. Starting at 0 to 2.
Then you have to modify the radio buttons onclick to:
changeImage('http://placehold.it/200x200','image1'); images1num = 1;
Here is the function:
function changeImageClick(num)
{
if(num == 1)
{
images1num = (images1num + 1) % images1.length;
changeImage(images1[images1num],'image1');
var input = document.getElementsByTagName('input');
var nextInput = false;
for(var i = 0; i < input.length; i++)
{
if(input[i].checked == true && input[i].name == 'image1')
{
nextInput = true;
if(nextInput)
{
input[(i+1)%images1.length].click();
nextInput = false;
break;
}
}
}
}
}
Again this is only for your 100x100,200x200,300x300 but the concept works for all 3.
Here is JSFiddle: http://jsfiddle.net/v4phdL3p/44/
Replicating the other two sliders is a good learning experience.
There are many javaScript sliders. You just need to search google to get your answer. However, following code may be helpful.
Working Fiddle....
<img id = "img" src = "http://www.menucool.com/slider/prod/image-slider-1.jpg" width = 200; onclick = "changeImage()">
<br>
<input type="radio" name = "rdo" id = "radio1" onclick = "changeSlide(this)" checked />
<input type="radio" name = "rdo" id = "radio2" onclick = "changeSlide(this)"/>
<input type="radio" name = "rdo" id = "radio3" onclick = "changeSlide(this)"/>
JavaScript:
function changeImage(){
if(document.getElementById("img").src == "http://www.menucool.com/slider/prod/image-slider-1.jpg" ){
document.getElementById("img").src = "http://www.menucool.com/slider/prod/image-slider-3.jpg";
document.getElementById("radio2").checked = true;
}
else if(document.getElementById("img").src == "http://www.menucool.com/slider/prod/image-slider-3.jpg"){
document.getElementById("img").src ="http://www.userinterfaceicons.com/80x80/minimize.png";
document.getElementById("radio3").checked = true;
}
else if(document.getElementById("img").src == "http://www.userinterfaceicons.com/80x80/minimize.png"){
document.getElementById("img").src = "http://www.menucool.com/slider/prod/image-slider-1.jpg";
document.getElementById("radio1").checked = true;
}
}
function changeSlide(id){
if(document.getElementById("radio1")==id){
document.getElementById("img").src = "http://www.menucool.com/slider/prod/image-slider-1.jpg";
}
else if(document.getElementById("radio2")==id){
document.getElementById("img").src = "http://www.menucool.com/slider/prod/image-slider-3.jpg";
}
else if(document.getElementById("radio3")==id){
document.getElementById("img").src ="http://www.userinterfaceicons.com/80x80/minimize.png";
}
}
I use this js:
var RowT = 1;
function toggleRowT() {
if (RowT == 0) {
window.document.getElementById('t1').style="display:table-row;";
window.document.getElementById('t2').style="display:table-row;";
window.document.getElementById('t3').style="display:table-row;";
window.document.getElementById('letter_t').style="opacity:1;";
RowT = 1;
} else if (RowT == 1) {
window.document.getElementById('t2').style="display:none;";
window.document.getElementById('t3').style="display:none;";
window.document.getElementById('t1').style="display:none;";
window.document.getElementById('letter_t').style="opacity:0.2;";
RowT = 0;
}
}
var RowD = 1;
function toggleRowD() {
if (RowD == 0) {
window.document.getElementById('d1').style="display:table-row;";
window.document.getElementById('d2').style="display:table-row;";
window.document.getElementById('d3').style="display:table-row;";
window.document.getElementById('d4').style="display:table-row;";
window.document.getElementById('letter_d').style="opacity:1;";
RowD = 1;
} else if (RowD == 1) {
window.document.getElementById('d1').style="display:none;";
window.document.getElementById('d2').style="display:none;";
window.document.getElementById('d3').style="display:none;";
window.document.getElementById('d4').style="display:none;";
window.document.getElementById('letter_d').style="opacity:0.2;";
RowD = 0;
}
}
in this file: http://flamencopeko.net/bpm_calc.js
for this page: http://flamencopeko.net/bpm_calc.php
The above code pasted in http://www.jslint.com produces too many errors for them to list. But it's all strange stuff like missing white-space, use === instead of ==, etc.
This is the html for the two buttons that will not work in other browsers:
<img src="/ico/letter_t.gif" class="ico" alt="X" title="toggle triplets" id="letter_t">triplets
<img src="/ico/letter_d.gif" class="ico" alt="X" title="toggle dotted" id="letter_d">dotted
This is the css: http://flamencopeko.net/flame_style.css
Anyone spot the problem(s)?
The style property on elements is not a string, it's an object. If you want to set the display property of that style object, you do that like this:
window.document.getElementById('d1').style.display = "none";
// Note display is a property of style ---^ ^
// And there's no ; at the end of the value -------------/
(And similarly when setting opacity.)
If it works in Firefox, Firefox must have special handling when you assign a string to the property.
And I just can't resist a minimal rewrite:
function toggleRow(type) {
var elm, n;
var display, opacity;
// Loop through the rows
for (n = 1; n <= 3; ++n) {
// Get this row
elm = document.getElementById(type + n); // t1/d1, t2/d2, t3/d3
// If it's the first, figure out the values to use
if (n === 1) {
if (elm.style.display === "none") {
display = "table-row";
opacity = "1";
}
else {
display = "none";
opacity = "0.2";
}
}
// Set the display
elm.style.display = display;
}
// And the opacity
document.getElementById("letter_" + type).style.opacity = opacity;
}
HTML:
<img src="/ico/letter_t.gif" class="ico" alt="X" title="toggle triplets" id="letter_t">triplets
<img src="/ico/letter_d.gif" class="ico" alt="X" title="toggle dotted" id="letter_d">dotted
With more context, I bet we could get rid of the ids entirely and make the code shorter.
I am trying to make an 8 image button rotator via javascript, I have buttons "<" ">" "<<" ">>" and a check box image rotator. I can send my code so far and screenshot, can someone help? here is my code.
<div id="images">
<img src="images/sample1.jpg" id="image"/>
</div>
<div id="buttonContainer">
<button id="firstImageButton" title="Click to view the first image." onClick="previousImage("image")">«</button>
<button id="previousImageButton" title="Click to view the previous image." ><</button>
<button id="nextImageButton" title="Click to view the next image." >></button>
<button id="lastImageButton" title="Click to view the last image." onClick="images/sample8.jpg">»</button>
<br/><input type="checkbox" id="autoRotate" /><label for="autoRotate">Click to auto-rotate</label>
</div>
</div>
</div>
script
<script>
var images = [ "images/sample1.jpg", "images/sample2.jpg", "images/sample3.jpg", "images/sample4.jpg", "images/sample5.jpg", "images/sample6.jpg", "images/sample7.jpg", "images/sample8.jpg" ]
var currentImageIndex = 0;
var currentImage = 0;
function nextImageButton() {
currentImage += 1;
displayImage(currentImage);
}
function previousImageButton() {
currentImage -= 1;
displayPage(currentImage);
}
function displayImage (imageIndex) {
document.getElementById("images").innerHTML = images[imageIndex];
document.getElementById("nextImageButton").style.visibility = "visible";
document.getElementById("previousImageButton").style.visibility = "visible";
if(imageIndex == images.length - 1) {
document.getElementById("nextImageButton").style.visibility = "hidden";
}
if(imageIndex == 0) {
document.getElementById("previousImageButton").style.visibility = "hidden";
}
}
</script>
change all tabs before posting.
create a jsfiddle.net with the code.
what's with the </div></div></div> ?
what is onClick="images/sample8.jpg" supposed to do?
you have the same quotes in the onclick - if you wrap quotes you need to do ="...('xxx');"
document.getElementById("images").innerHTML = images[imageIndex];
should be document.getElementById("image").src = images[imageIndex];
Live Demo
var images = [ "http://lorempixel.com/output/food-q-c-640-480-1.jpg",
"http://lorempixel.com/output/food-q-c-640-480-2.jpg",
"http://lorempixel.com/output/food-q-c-640-480-3.jpg",
"http://lorempixel.com/output/food-q-c-640-480-4.jpg",
"http://lorempixel.com/output/food-q-c-640-480-5.jpg",
"http://lorempixel.com/output/food-q-c-640-480-6.jpg",
"http://lorempixel.com/output/food-q-c-640-480-7.jpg" ]
var tId,currentImage = 0;
function changeImage(dir) {
if (dir === 0) currentImage = 0; // first image
else if (dir===images.length-1) currentImage=images.length-1; // last image
else currentImage+=dir*1; // next or previous
if (currentImage<0 || currentImage>=images.length) currentImage=0; // will wrap
displayImage(currentImage);
}
function displayImage (imageIndex) {
window.console && console.log(imageIndex); // remove when happy
// document.getElementById("msg").innerHTML=(imageIndex+1)+"/"+images.length;
document.getElementById("image").src = images[imageIndex];
document.getElementById("nextImageButton").style.visibility=(imageIndex<images.length-1)?"visible":"hidden";
document.getElementById("previousImageButton").style.visibility=(imageIndex>0)?"visible":"hidden";
}
function rotate() {
changeImage(+1);
}
window.onload=function() {
document.getElementById("autoRotate").onclick=function() {
if (this.checked) tId=setInterval(rotate,3000)
else clearInterval(tId);
}
document.getElementById("firstImageButton").onclick=function() { changeImage(0) }
document.getElementById("lastImageButton").onclick=function() { changeImage(images.length-1) }
document.getElementById("nextImageButton").onclick=function() { changeImage(1) }
document.getElementById("previousImageButton").onclick=function() { changeImage(-1) }
}
I have a small problem with a small jQuery script that my slide images. The script itself works very well, its purpose being to scroll through the images indeed "fade", a classic.
The problem is that if I want to use it for another block on the page, well it no longer works properly .. The problem is certainly located at the id, but can not make it work.
Here is the script:
function slider() {
function animate_slider(){
$('.slider #'+shown).animate({
opacity:0 // fade out
},1000);
$('.slider #'+next_slide).animate({
opacity:1.0 // fade in
},1000);
//console.log(shown, next_slide);
shown = next_slide;
}
function choose_next() {
next_slide = (shown == sc)? 1:shown+1;
animate_slider();
}
$('.slider #1').css({opacity:1}); //show 1st image
var shown = 1;
var next_slide;
var sc = $('.slider img').length; // total images
var iv = setInterval(choose_next,3500);
$('.slider_nav').hover(function(){
clearInterval(iv); // stop animation
}, function() {
iv = setInterval(choose_next,3500); // resume animation
});
$('.slider_nav span').click(function(e){
var n = e.target.getAttribute('class');
//console.log(e.target.outerHTML, n);
if (n=='prev') {
next_slide = (shown == 1)? sc:shown-1;
} else if(n=='next') {
next_slide = (shown == sc)? 1:shown+1;
} else {
return;
}
animate_slider();
});
}
window.onload = slider;
Any idea ? Thank you all :)
i am not sure of what u want to do, but if you want reusibality :
EDIT : i ve modified assuming that your 2 slides are independant
this is a quick solution, as mentioned #David Barker, it would be more clean to do a jQuery plugin
JS :
var sliderTop = "#slider.top";
var sliderBottom = "#slider.bottom";
function slider(el) {
function animate_slider(el){
$(el + shown).animate({
opacity:0 // fade out
},1000);
$(el + next_slide).animate({
opacity:1.0 // fade in
},1000);
//console.log(shown, next_slide);
shown = next_slide;
}
function choose_next(el) {
next_slide = (shown == sc)? 1:shown+1;
animate_slider(e);
}
$(el + ' #1').css({opacity:1}); //show 1st image
var shown = 1;
var next_slide;
var sc = $(el + ' img').length; // total images
var iv = setInterval(choose_next,3500);
$(el + '_nav').hover(function(){
clearInterval(iv); // stop animation
}, function() {
iv = setInterval(choose_next,3500); // resume animation
});
$(el + '_nav span').click(function(e){
var n = e.target.getAttribute('class');
//console.log(e.target.outerHTML, n);
if (n=='prev') {
next_slide = (shown == 1)? sc:shown-1;
} else if(n=='next') {
next_slide = (shown == sc)? 1:shown+1;
} else {
return;
}
animate_slider(el);
});
}
window.onload = function() {
slider(sliderTop);
slider(sliderBottom);
}
HTML :
<div id="slider" class="top">
<h2>Nos partenaires</h2>
<img id="1" src="" alt="">
<img id="2" src="" alt="">
<img id="3" src="" alt="">
</div>
<div class="slider_nav">
<span class="prev">Précédent</span><!--
--><span class="next">Suivant</span>
</div>
<div id="slider" class="bottom">
<h2>Nos partenaires</h2>
<img id="1" src="" alt="">
<img id="2" src="" alt="">
<img id="3" src="" alt="">
</div>
<div class="slider_nav">
<span class="prev">Précédent</span><!--
--><span class="next">Suivant</span>
</div>