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JavaScript - Forcing An Image To Display Before Loading Other Images?
Hello. I've recently implemented this really cool jQuery preloader called queryLoader. When a visitor comes to my site they are fed all the important images for the entire site (it's a very small site). During that time queryLoader shows a percentage loading animation, and once all the images are loaded it wipes the screen & displays the website.
I've placed another custom animation in the "page loading" div, and i want to make sure it loads first so that it is displayed while the rest of the images get downloaded. I've tried pre-loading with javascript as the very first script in my header, before jQuery or queryLoader get loaded, like this: Code: <script type="text/javascript">
pic1= new Image(250,300);
pic1.src="images/page_loading.gif";
</script>
<script type="text/javascript" src="scripts/jQuery.js"></script>
<script type="text/javascript" src="scripts/queryLoader.js"></script>
However, this doesn't seem to be that effective. When i clear browser cache and reload the page, the page_loading.gif sometimes doesn't appear until the site is almost completely loaded. Is there a more effective way to assure the page_loading.gif gets loaded before any other images? My site is jugtones.com if that helps in any way. Thanks for your time, -Scott Similar TutorialsHi, how would i edit the code below so instead of today is day 16 of the month to an actual date eg Today is 10/11/2011 (dd/mm/yyyy or mm/dd/yyyy compatible). I need the code to execute on a specific date. javascript or php versions very welcome THANKS Code: <script type="text/javascript">
var Date = new Date();
var Today = Date.getDate();
if(Today == 16)
{
document.write('<img src="http://www.imagelocation_here" alt="Image title " width="117" height="100" />');
}
else
{
document.write('<img src="http://www.imagelocation_here" alt="image title " width="117" height="100" />');
}
</script>
is there a way to after thye page load add an image. So maby loading it in the background and just showing it when you click a button?
Hi I am currently doing a photography site. I would like to do a 'portfolio' page, but would like to pre-load the images so that they appear on-screen faster. Do I need to connect code to <body onload>? I have some rollover images on my website, and they don't switch until the page is finished loading. Is this standard? Is there a way to have the rollovers work when the page is still in the process of loading all the images? Thanks Hi Currently my website waits till all images are loaded up first: Code:
$(document).ready(function(){
* LOAD UP ALL THEM IMAGES FIRST... *
$(window).load(function() {
letsLoad();
fadingEffects();
});
However my website now has over 200 images on the website and now its taking way too long to load the images. My question's a 1. Is it possible to either load the site when its around 20% or even 50% loaded? OR 2. If its possible to give certain images a tag?? and when these images are loaded then the site loads? Heres a link to the site - must warn you need broadband and a high speed connection takes way to long to load. Takes me around 1minute 30seconds http://www.arcvizio.co.uk/ovoma/2/index.html Thanks Code:
<html>
<head>
<title>test</title>
</head>
<body>
<script language = "javaScript">
var clouds = [];
var i = 0;
while(i <= 5) {
var cld = new Image();
cld.onload = function()
{
clouds.push(cld);
}
cld.src = "cloud.png";
i++;
}
document.write(clouds.length);
</script>
</body>
</html>
Where am I messing up clouds.length returns 0. Why? I know this is simple, but it will get more complex. I can search for the code, but I would like feedback as to what I'm doing wrong. This is more than likely going to be a multi stage question. More to come... ------ Also, I would like to say that this is my first post. Thanks in advance to those who reply. Hello, I have develop a piece of code that when the user loads the html page it will load a local image but if the image doesn't exist it will load from a remote server. The question that remains is if it's possible to make an event in case the image is load locally? 1) HTML Page is load 2) If image doesn't exist locally reload from the server 3) If the image is load locally report back to the site Is the 3) possible? Greetings, I am looking for either a JavaScript or Coldfusion solution to the following problem. First, there are over 60 million product photos so downloading and resizing the photos using Coldfusion would be very tedious. I would like the display an image within a 100 x 100 pixel container. If the height or width of the image is great than 100 pixels, the image should reduce in size to fit within the 100 x 100 pixel container. I want to avoid pixelation of the images as much as possible. All images are external and not on the local server so I only have an image URL. I would like to hide all images until they are resized appropriately. Does anybody know of a piece of javascript code that can do something similar to this? Sincerely, Travis Walters Hi, I have php script that uploads a file. once i click upload it should display a animated GIF image or "Loading please wait" message with the backround transparent screen covering the whole page so that the user is not able to click anything during file upload. How can i do this? Could someone help me on this. Thanks in advance. My goal is to replace a 300px x 300px div with a random assortment of pictures, all being 300px x 300px. I however am not that great at JavaScript (I've taken a bigger bite than I can chew) and would love your guys' help. So far this is what I have for my JavaScript: Code: begin();
function begin()
{
setTimeout(newimage(),7000);
}
function newimage()
{
}
Which brings me to my first question: What's the best method of pre-loading images? And also, if the method is not through JavaScript, how would I reference the image from the JavaScript? My next step would be to transition between images. (Fading specifically.) I really like the fade transition here and I plan on using that in the site. How would I incorporate that into my code? I noticed he made the entire JavaScript code into one line, which is quite annoying. Thanks guys! So I'm creating a game and decided to use a canvas for the map. The map is a big pictures 500kb+ (6400x6400px) and the canvas size is 320x320 so I am displaying only part of the image at a time and have the page reload on button click for database purposes. What I'd like help with is performance. Currently it's taking a few secs to reload every time and it seems that it causes some cpu strain (can't switch tabs while loading). Could I stop the canvas from reloading the image each time the page is reloaded and if so then how? Can I make the canvas only load a part of the image, if so then how? If neither is possible any tips, solutions how to solve the performance issues? Hi I have a script which dynamically adds contents to an HTML table using the jQuery's .after();... Now the problem the content is a bit too much and some times IE would crash, so I thought if a loading image would solve this issue? Any ideas? Thanks in advance Hi, I want to load an image when a user clicks a link on my page. The image is a tracking pixel for an affiliate network, so it doesn't need to be visible to the user (as it's not an image anyway but a php file). I assume this would use the onclick event. Can anyone help? I have a form that used php to load a random image but now i would like to use javascript instead and am sure I nearly have it. I need to have a random number between 0 -5. Here is my code Code: <script type='text/javascript'>
var random = Math.floor( Math.rand() * 6);
document.write("<img src='images/'"+random+"'.jpg' alt='random image' /><input name='image' type='hidden' value='"+random+"' />")
</script>
Basically I want an effect like this: http://www.appelsiini.net/projects/l...ed_fadein.html Where the images on the page fade in as the user scrolls down. I implemented the code on a page, he http://www.jamiewebster.co.uk/orca.html Now, I have a couple of issues with this. First issue, it works in FF but it doesn't seem to work in Chrome. Second issue, I can see the alt text of the images below just above the fold of the page before the image loads (I guess it depends on your monitor size on wether you'll see it or not, but its still a problem!) Thirdly, it seems that once the images have loaded, if you scroll back up you no longer have the fade effect and it only happens once (unless you refresh the page) - would be good if that effect could happen every time you scroll. Any ideas, or if there is better code out there? Thanks in advance!! Hi, I am using a slideshow and want to basically have an 'image loading' whilst all the images load before the slideshow. Is there a way to do this? So far I have figured the best way around this is to have a GIF as a background image that says the loading message, and then once the slideshow loads over the top its fine, however im guessing this is'nt the right way to do this. I am using this slideshow set to just loop: http://www.dynamicdrive.com/dynamici...lslideshow.htm I am open to using other similar slideshows if there is one more suited. Thanks Hi! i am working on a facebook like photo viewer. I have used javascript to declare an array of about 200 images. I have the following approach to pre-load the images. I preload all the images when the page loads: HTML: <body onload = "lodpic()"> JAVASCRIPT: function lodpic() { for(i=0; i<=199; i++) { LODImage = new Image(); LODImage.src = picture[i]; } } The problem is the page tries to load all the images when opened. And when the user clicks "next" to view other photos, the other photo is still loading where as some are already loaded. I would like the code to be able to load the photo that the user is currently viewing as the user gets to that picture, before the page tries to finish loading all the photos. In other words, if the user wants to view a particular photo directly, that photo should get the priority of loading quickly. Or if there are other approaches, it would be really helpful. Thank you! ok. so i have all these big images and i need to let the whole page load before the viewer sees it what i would like is for a separate url (or something to completely cover the html page so you cant see it loading) to say please wait or something like that. Help! Hi , Pls solve it Javascript problem. I have a page called gallery.html in which we have photo albums.when u click on one of the photo albums opens up all images belongs to that album on same page ( javascript). when click on one of the images it has to open up in a popup ( including other images) which is happening but the probleem is that when u close popup and again click on same images popup is happening but images are not loading. what might be the problem ..pls solve it .......its too urgent thanks in advance nagaraja kharvi When performing an Ajax request I want to change the submit button into a loading image and then swop it back again when the Ajax request is complete. I don't want a loading image anywhere else as on mobile phones it can't always be seen due to small screen size. I have grabbed the event (which references the form, is that right?) and I have something like this: Code: <button type="submit" name="name_can_vary">Search</button> event.name_can_vary.style.visibility = 'hidden'; //(obviously this isn't complete code but no doubt explains what I am talking about) ..which would hide the button and works exactly as I want to this point, but of course it does;t return when Ajax has completed or show the loading image. Ideally, instead of just hiding the button I want JavaScript to swop the button for the loading image. I suppose I could have extra HTML on every page that is made visible with the loading image but I would rather have JS do everything from here (saves editing all pages with submit buttons on). Thanks for any help. |
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