Preloading images has got to be JS 101. However, it does not seem to be working. Here is the function that I am using. I added the alerts to make sure it is working and all the right alerts show up, yet when I do my mouseover, it still takes about a second (only the first time) to load the image (thumbnail).
loadims(max, letter) {//loads information images
if (document.images) {
max++;
alert(max);
for(i=1; i < max; i++) {
rslt = new Image();
imgn = 'm/' + letter + i + '.jpg'
rslt.src = imgn
alert(imgn);
} loaded = true;
}}
Code: <iframe src="http://www.cult.co.uk/men/shop/hoods-and-sweats/details/25705/75-wings-foil-hood" width="500" height="500" id="iframeTest"/> the page from cult.co.uk has javascript alert() messages embedded in the code, which are triggered when the page loads via the iframe.is there a way of suppressing the alert() messages?I know i can suppress alerts on my local site by adding the following function:
I'm having difficulty loading images via Ajax on a site that I've been working on.I'm performing the ajax by using the Request.HTML object of the MooTools framework. Basically, I'm just passing some parameters to a php script which outputs some image tags and then I insert that HTML into a pre-defined content div. For some reason though, it seems that big images don't seem to load consistently when using this technique. Usually, they will just show up as broken images, but when I navigate to the url of the image that is 'broken', it displays just fine. Also, occasionally after navigating to the actual url of the image, my browser will cache the image and then it will display just fine when loading it through Ajax.
i have a php script which do very long operation and i need to give information to user about process. I have a problem. When I start a long operation(PHP) jquery do not work before that operation has been completed.
So i have this full paged HTML/CSS side and i wanna imploment some Jquery to hide and show my Contact informations.But, my problem is that, i have a FULL side filled with Div's and other goodies. My problem is, how do i get make a link, which is inside a Div to be a special class so that only when you click that "class" it shows / hides the content?The Div i have it something like this;[code]
It's for a photo gallery like this http:[url].....php but the one I need it for has 100 images so the page loads much slower. I can't just put the loading gif behind the images (as you would normaly) because you can see it with each image fade in and out. how I can have a loading gif show "only" while the images are initially loading, and then it goes away?
I'm using custom javascript tooltips to show information about designs in a t-shirt shop, such as design name and artist. I downloaded the code and CSS for the tooltips and am attempting to assign the tooltip to each design using a javascript array and a for-in loop. Only problem is that the tooltips aren't showing at all, no matter what I do. I think the problem is related to the onmouseover event that I'm using, but the only thing that seems to work even partway is changing the visibility to "show" in the CSS. From that I can see that the text is being assigned to the tooltips properly and that they are being positioned within the window, but the onmouseover event is having no effect either way when I revert the visibility back to "hidden."
I have a HTML form containing two text box controls in it and a submit button. When a user enters information in those two textboxes and click on submit, the information is sent to a function in Javascript. In the javascript, the information from those textboxes is stored in a javascript variable. The problem is as follows:When I am inputting string text in the html text boxes and in the javascript when I am trying to print those values, it is giving me out an error saying NaN. However when i input integer values in the text boxes it is printing those numbers. Is there a conversion that I have to do for the string to be printed. I am new to Javascript and need your help. This is a basic code of Javascript. Below is the code that I have.
<html> <script type = "text/javascript"> function square(form)
I am trying to load an image into a div using AJAX.Instead on loading the image, I get PNG as the result in the div.Does anyone know how to load an image into a div?
function pre_load_pics() { if (document.images) { var image1 = new Image(400,265); image1.scr = "pic1.jpg"; var image2 = new Image(400,265); image2.scr = "pic2.jpg";
etc etc
}
and the following in the body
<script> pre_load_pics(); </script>
but images are not downloaded until the app needs them later. Something wrong ? I thought they should be downloaded earlier?
I feel like a complete fool! I should know the answer to the Q:
How do I load an image with JS and replace the default image?
Some background: My final objective is to have a web site where it is VERY difficult to copy images off the site. The first thing I was going to do was force folks to turn on JavaScript so that I could disable the right click pop up menu. To force this, I thought I would have all the default images say that JavaScript is required to view the images. The problem is that I cannot figure out for the world in me how to load the good image.......
I am currently using the scrollable jquery plugin to scroll some images of thumbnails in a gallery. What I'm trying to do now, is figure out how to load the large version of those thumbnails into a div when they are clicked.
Here is a link to the webpage where the source can be viewed. [URL]
I want to pre-load images for my gallery, but I'm not sure of the best way to go about it. Currently, I have php code that generates thumbnail images on page load and while this works fine, it at times can be very time consuming. For reference, below is my php code. how I could/should pre-load images?
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?
In my website I constructed a script that changes the image.sources of several images. The changes are made by calling a JS-function. The function is invoked by selecting an option in an html-form. In my second post below I pasted the code.
The problem is that each time the images are changed the browser starts to load them all again, although all images were PRELOADED in the <head> section of my HTML page. It takes time every time a user invokes image changings, and also the visual effects are worsened. How can I prevent the browser from loading the images again each time?
I am using Lightbox v2.04 with ASP.Net 2008. The issue i am finding is that the images that are controlled by the java script are not loading if the page is in a sub folder. I have my main folder that contains a folder for my java script folder, a folder for my images, and a folder that contains some pages.
This is the code in the lightbox.js file that i believe may be the cause.
I would like to display a different set of images each time a person visits a web site. I have seen this done in many banner advertisments and product photos. Can someone tell me how this can be done with Javascript?
I have php script that reads an image from database and outputs it.If i send request via AJAX i get the "inside" of the image into responseText, how to output it to a browser.so i can see an image instead an text?
I am currently working on a new tool that changes the websites header based on the option from the navigation list the user clicked on, so far so good.But now I want to make this easy to maintain so that the class name of the list retrieves an image from the folder with the exact same name, so eventually I would only have to insert the option and the image is automatically loaded.
for the last day and a half i've been attempting to prevent images on a page from loading. i do this by calling a domready function. i just need this to work in firefox, so i'm using its DOMContentLoaded event. however, for troubleshooting purposes i have opted off the domready stuff and simply placed my code at the bottom of the html before the closing body tag, which does the same. my research shows that all the lazyloading techniques (which at the core are similar to what i'm doing; ie, preventing an image from loading) that do not rely on creating a custom attribute for the img tag, do not work. jquery's lazyloading plugin does not work: [URL] mootools' lazyloading plugin does not work: [URL]. however, they must have worked at one point. read the latest comments on lazyloading techniques online and you'll see that mostly everyone suddenly is unable to achieve lazyloading on their site. the only effect one achieves is that the image fades in when scrolling down, however it has already been downloaded when the page rendered, but it should only have been downloaded from the server once the scroll threshold for that image is hit.
calling a function to replace images with small placeholder images immediately after the dom loads (ie, before the full page loads) should work. this should prevent the loading of the original file in the src attribute, but it does not. i'm using firefox 3.6.3, but it happens on webkit browsers as well (though this is a documented bug); opera, however, works as it should. i did my research pretty thoroughly, but if i missed something
I have created a Javascript menu for my site which uses frames. The first stage loads fine but I want two drill down menus ("About Me Menu" and "Projects Menu"). The pages load fine, but the images aren't displayed, instead the alt text is shown. The images come up after you "Mouse Over" them but not before......can anybody spot any errors in my code which could be doing this please. For info, I have 4 images for each button, to take into acount whether the button had been used and to give a mouse-over image for each state. I have also deleted the code for items 3-5 as they are commercially sensitive. Code:
I have an application, which has to change to different images based on some conditions. I am trying to call a javascript function(this function changes the images on the front end) from the ASP script. I want to preload all the images to the client side browser and point to a different image source through the javascript.
I am seeking a easy to maintain and more importantly *working* way to pre-fetch images, so the pages I develop load smoothly without seeing the images kick in flicker as they usually do. Important - I need this to work on Internet Explorer 6.0+ and FireFox.
I am presently using at the head of the page,
pic100= new Image; pic100.src="./imageme.gif";
However, it doesn't seem to work on FireFox at all. I've tried different combinations with the URL path, but I don't know what I am doing wrong. Can someone please assist me with this boggle?
