i have one website which is working on templates.
in the template there is one main image & i want to replace that main image on some pages only not on full website. what i am looking for is to change the main image to new image on page where i need with ajax.
when i see the css of that template i found following code to show image
.top-bg{
background:url(../images/top-bg.jpg)
top center no-repeat;
position:relative;
}
and on php page i found following line which bring image.
<div class="top-bg">
i need ajax / jquery code to change image.
my basic logic is, i will get that image URL from MYSQL databse and assign to one variable and then i will change the image which come from database, actually its one page displaying products and i want to display main image of product with ref to loaded product, i hope you will understand what i need at the end...
Thanks
Thanks for every one how reply, i found the solution
$(document).ready(
function(){
$('#imageContainer').css("background-image", "url(images/cube.jpg)");
}
);
this did trick for me what i need, any way thanks and also for -ve voting thanks... :((
While I think Ajax is the wrong solution for your problem, I'll offer you the following (which, at least, meets your question):
$('#changeImage').click(
function(){
$('#imageContainer').load('http://path.to.php/file.php #imageID');
return false;
}
);
Clicking an element of id="changeImage" will load the contents of id="imageID" from the php file located at the url of http://path.to.php/file.php into an element (presumably div, but whatever) of id="imageContainer".
That said, I'd suggest following #Nick Craver and #Aaron Digulla's advice and use CSS.
If you view source there's a working demo of jQuery's load on my site (posted in response to a different SO question) at http://davidrhysthomas.co.uk/play/loadDemo.html.
Edited in response to comment from OP.
To do this automatically, on page-load:
$(document).ready(
function(){
$('#imageContainer').load('http://path.to.php/file.php #imageID');
}
);
You don't need any JavaScript at all for this, just include another stylesheet (or <style> block) on the webpages you want the imaged changed on. Just have this in there:
.top-bg { background:url(../images/other-image.jpg); }
Or the <style> version:
<style type="text/css">
.top-bg { background:url(../images/other-image.jpg); }
</style>
As long as this is declared after that template stylesheet, that background property will override the template one, and you'll have your custom image on just those pages.
I think AJAX is the wrong approach here. AJAX should be used to load new data when the user interacts with the web page.
Your problem can be solved much more simple: If you can add an AJAX call to the code of the page, why not simply add a new CSS style:
.tob-bg {
background:url(../images/other.jpg) top center no-repeat;
}
Or create a second template and use that for all but the main page.
Related
This would be a generic question asked a number of times before. The reason why i am asking this is because i did use the on ready call back in jquery and it did not modify the placeholder of my element "search_input"
$( document ).ready(function() {
$("#search_input").attr('placeholder','New data that will be shown');
}
This is because the CSS is applied on the id "search_input" before it is loaded. I have tried everything but nothing seems to work.
Any ideas?
Note : I am working on ArcGIS Javascript to applications using ERSI maps . The issue i face is occurs when I load a search bar through javascript, which takes time to load the search bar. But my html page calls the on ready callback before this script is loaded. Hence, I face this issue. I am unable to solve this and any help would be appreciated!
I fixed this in my code using this,
search.on("load", function () {
//push all the sources
var sources = search.sources;
sources.push(addSources("ABC","ABC","eg : ABC",1));
sources.push(addSources("XYZ","XYZ","eg: XYZ",1));
search.set("sources", sources);
//Adding the placeholder here, as the search bar is loaded with sources only at this point of the execution
//Hence, we can modify the CSS only after this point.
$("#search_input").attr('placeholder','Search Tree Data');
});
You cannot modify the CSS anywhere in the code. It has to be modified only when the search bar has been loaded with all its sources. I tried adding a $document.ready(function(){}); or adding the css at the end of the body. Nothing worked because we are using a different javascript library/toolkit here - Dojo. Hence, we can only performs operations based on how the data is loaded or when call backs are called in Dojo. and not in normal HTML javascript to jQuery.
This is a page I'm currently working on as a project
$(function() {
$(".modal-launcher, #modal-background").click(function() {
$(".modal-content, #modal-background").toggleClass("active");
$(".vid-1i").attr("src", "link1");
$(".vid-2i").attr("src", "link2");
$(".vid-3i").attr("src", "link3");
$(".vid-4i").attr("src", "link4");
$(".vid-5i").attr("src", "link5");
$(".vid-6i").attr("src", "link6");
$(".vid-7i").attr("src", "link7");
$(".vid-8i").attr("src", "link8");
//$('html').toggleClass('active').css('top', -(document.documentElement.scrollTop) + 'px');//
});
});
above the actual links are replaced just to display a quick idea of the bad jQuery.
In it, I am attempting to create my own popup launcher for videos; however, I am having trouble using jQuery to replace the "" src of an iframe element to a YouTube link. I am unable to figure out why the jQuery is not working. I understand that the jQuery is, of course, working properly, and that it is me who has written the code incorrectly, but here I am asking if anyone is able to figure out what it is I've done wrong, or what can be changed to make it work.
For some reason, the last video in the jQuery list is always the one retrieved.
Understand that the images are missing from the page due to them being local files and not network locations. Clicking above the captions that read like "Match One" will have the "intended" result, regardless if the image is showing or not.
Coming back to this and understanding more of JavaScript and jQuery, my problem was simply misunderstanding the code. In order to do something like this, one function per link would be more suitable.
function video1()
{
$("#popup, #modal-background").toggleClass("active");
$("#popup").prop("src", "https://www.youtube.com/embed/7h1s15n74r3all1nk");
document.getElementById('scroll').style.cssText ='overflow:hidden';
}
complementary html would look like this:
<div onclick="video1()"></div>
The previous code would run each line, effectively setting the last link as the source of the element. The new code is button independent, ensuring only one link belongs to each button.
I am trying to refresh just a part of my website (the left part in which a list with topics appear), but it don't work for me. I get a very weird screen on that left part if I click the refresh button. The script I am using is this:
$(function() {
$("#refresh").click(function(evt) {
$(".bgleft").load("left.php")
evt.preventDefault();
})
})
The weird screen I am getting is a white blank screen with a random text on it (that does not exist). I don't understand why it is happening. For a live example: go to (edited out)
and click on "refresh" at the left frame.
Edit:
The HTML snippet: <body class="bgleft">
In left.php there are two lines of code which are showing theese characters.
for(var n = 1; n < 7; n++)
document.write(String.fromCharCode(Math.round(Math.random()*25)+97));
Try to remove them, it should help.
Also as sad in other answers send only contents of <body> in response because scripts are already included in the site.
It's generally not a good idea to send a complete HTML page when doing a partial update. If you look at what's produced by your left.php, it's the complete page (with <html> tags and everything) you use in your iframe.
Either create a page that only renders the body of the left.php and use that for partial update. Or look here for how to refresh an iframe.
PS: Framesets are hopelessly deprecated and really limiting in terms of design, dynamic/javascript functionality and future extensibility. Consider not using them...
You should be only fetching the content to be updated, not the whole page. Currently, the whole page is being fetched including html, body and even script tags. The jQuery and other scripts are also being loaded again because of this. This can cause major problems later.
How come you are loading the same page HTML, HEAD, BODY inside the current BODY tag?
$(function() {
$("#refresh").click(function(evt) {
evt.preventDefault();
$(window.top.window).find('frame[name=left]').reload();
})
})
If you view this page http://www.herkimer.edu/news/view/community_members_complete_jointly_offered_machine_operator_training_progra/
You'll notice a green bar (screen-shot: http://grab.by/1msh) at the very top. It has something to do w/ the addthis widget you'll see underneath the h1 title.
If you reload the page a couple times, the bar goes away, probably because the script is cached and does not delay, resulting in that extra space at top.
Do you know what I could do to resolve this? Any help is appreciated.
I'm assuming that you don't want the DIV to display. You could add some CSS to the page to hide it. It has id atffc (and contains a Flash object, but I don't know that it needs to be visible).
#atffc { display: none; }
I think in addition to just hiding your extra div you may want to move the elements to the bottom of your page so they are evaluated after the add_this anchor tag () is created and ready. That would help with potential timing issues to make sure the element is loaded and ready before their code starts to try to manipulate it.
I had the same problem and I downloaded their new code
http://www.addthis.com/web-button-select
I selected "no analytics" and I think they now strip out the flash part when using no analytics. I haven't had the problem again the last time I checked but I'll need more time to confirm this.
You might want to try to do the same
A bit late, but try adding this code AFTER the AddThis button code:
<script type="text/javascript">
var addthis_config = {
data_use_flash: false
}
</script>
Source:
http://www.addthis.com/forum/viewtopic.php?f=4&t=22569&sid=fec603f0cac141b4856eddab92c8e63e&start=10
I have a website with a top panel and a body part. The top panel can be toggled between hidden and shown.
The body part should contain the actual content of the website.
As I don't want to hard-code every single site, I would like to stay with the panel and only reload the content.
This seems to can be done using AHAH and this tutorial.
The problem is that, if new content is loaded, it just pushes the old content down.
My question is, how can I overwrite the old content with the new, fetched content?
Thanks a lot in advance for the help!
Use:
document.getElementById('yourDivID').innerHTML = theHTML;
However any JavaScript in theHTML will not be evaluated.
The prototype.js library has a good function, Ajax.Updater(), to do this sort of thing, and it is less limited than the ahah.js lib, it sounds (can harvest a chunk of any page, local or remote, unlike AHAH). Like jquery, there is a special $() function to get at stuff, use that to prune before appending.
$( 'target_div_id').childElements().each( function( child) { child.remove(); } )
Ajax.Updater( 'target_div_id', 'related_page.html')
Trailing options can be added to refine how much of the downloaded "page" is used.
Ajax.Updater
Element
If you're using jQuery:
$("#divid").html("some html value goes here");
Jquery would be the best way, here is a link to that page;
http://docs.jquery.com/Attributes/html#val