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JavaScript - Loading Images In Javascript With Error Event
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? Similar TutorialsGreetings, 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 i am interested in using RaphaelJS for creating VML/SVG rounded corners etc, but unless i physically put the <script> right after the element to which it needs to be applied, i have to rely on the single DOM load() event. which causes a delay before any script is executed,...thus a FOUC (flash of unstyled content). i'm guessing there is no way to track when individual elements are loaded into the DOM via a CSS filter or similar, or another way around this other than having <script> in the body or just dealing the the load delay? thanks, Leon 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>? 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?
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'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 I have a html page with a lot of thumbnails. The idea is that when the user clicks on an image the onClick event is to display another detailed form and deliver to that form the name of the image in a variable. In the detailed php-form there is a query to MySQL to retrieve a record. The record will be retrieved by a Query based on the name of the picture. Apparently the PHP cannot do the job. I had an idea to make the thumbnail page as a form and to use use a hidden field with the thummnail name which should be carried on with the $_POST array through the submit button but i do not want to have a submit button. The more elegant way is just by clicking the picture the detailed page is opened and the variable is transferred where my php code can make use of the variable for the query. I have never used java before so you have to excuse for the lack of knowledge. Can anyone gie me an idea how i should implemnt this Best regards MSP I have a html page with a lot of thumbnails. The idea is that when the user clicks on an image the onClick event is to display another detailed form and deliver to that form the name of the image in a variable. In the detailed php-form there is a query to MySQL to retrieve a record. The record will be retrieved by a Query based on the name of the picture. Apparently the PHP cannot do the job. I had an idea to make the thumbnail page as a form and to use use a hidden field with the thummnail name which should be carried on with the $_POST array through the submit button but i do not want to have a submit button. The more elegant way is just by clicking the picture the detailed page is opened and the variable is transferred where my php code can make use of the variable for the query. I have never used java before so you have to excuse for the lack of knowledge. Can anyone gie me an idea how i should implemnt this Best regards MSP Hi, well i searched at google and was not exactly able to find what i was looking for, i am looking for a script the shows by logo while loading the game at back end, shows loading percentage or bar representing how game is loaded and then makes the my logo disappear once the game is loaded e-g like this site has used http://www.gamegape.com/en-2095-elemental-battles.html if some thing like this is not available can someone atleast tell me how this site has done it, so we could copy it from them ^_^ Hi, im having a problem adding a frame busting killer that counteracts a frame killer script on sites so i can load them inside my iframes.. here is the code i use <?php $result = mysql_query("SELECT ru.id, ru.username, ru.owid FROM raidbar_users ru LEFT JOIN raidbar_groups rg ON ru.groupid = rg.id WHERE rg.id = '".(int)$_REQUEST['group']."'") or die(mysql_error()); $myRaidid = raidid(); if(isset($_GET['gm'])) { echo '<FRAMESET rows="*,*,*,30" frameborder="0">' . "\n"; echo ' <FRAMESET cols="*,*" frameborder="0" scrolling="no">' . "\n"; $i = 0; while($row = mysql_fetch_array($result)) { if ($i == 2) { echo ' </FRAMESET>' . "\n"; echo ' <FRAMESET cols="*,*" frameborder="0" scrolling="no">' . "\n"; $i = 0; } echo ' <FRAME src="http://'.$server[$siteConfig['userServer']].'.***********/joinraid.php?raidid=' . $myRaidid . '&suid=' . $row['owid'] . '&serverid='.$siteConfig['userServer'].'">' . "\n"; $i++; } echo ' <FRAME src="">' . "\n"; echo ' </FRAMESET>' . "\n"; echo ' <FRAMESET frameborder="0" scrolling="no">' . "\n"; echo ' <FRAME src="http://'.$server[$siteConfig['userServer']].'.***********/raidmembers.php?raidid=' . $myRaidid . '">' . "\n"; echo ' </FRAMESET>' . "\n"; echo '</FRAMESET>' . "\n"; } else { echo '<table cellspacing=1 cellpadding=1>' . "\n"; echo '<tr>' . "\n"; $i = 0; while($row = mysql_fetch_array($result)) { if ($i == 2) { echo '</tr>' . "\n"; echo '<tr>' . "\n"; $i = 0; } echo ' <td><iframe src="./acct.php?suid=' . $row['owid'] . '" width=450 height=225 scrolling=no frameborder=0></iframe>' . "\n"; $i++; } echo '</tr>' . "\n"; echo '<tr>' . "\n"; echo ' <td><iframe src=http://'.$server[$siteConfig['userServer']].'.***********/raidmembers.php?raidid=' . raidid() . '&serverid='.$siteConfig['userServer'].' width=250 height=30 scrolling=no></iframe>' . "\n"; echo '</tr>' . "\n"; echo '</table>' . "\n"; } ?> Now im told to use the following.. <script type="text/javascript"> var prevent_bust = 0 window.onbeforeunload = function() { prevent_bust++ } setInterval(function() { if (prevent_bust > 0) { prevent_bust -= 2 window.top.location = 'http://server-which-responds-with-204.com' } }, 1) </script> or var prevent_bust = 0; // Event handler to catch execution of the busting script. window.onbeforeunload = function() { prevent_bust++ }; // Continuously monitor whether busting script has fired. setInterval(function() { if (prevent_bust > 0) { // Yes: it has fired. prevent_bust -= 2; // Avoid further action. // Get a 'No Content' status which keeps us on the same page. window.top.location = 'http://server-which-responds-with-204.com'; } }, 1); But the window.top.location i dont know how to incorporate that to work. Can anyone help? I know this was here previously but no solution was found and I wonder if someone could help. JavaScript loads before even DOM is fully loaded but only in Chrome browser. I know I could use setTimeout function but it's now ideal in my case. I am working on a program based on Chromium and have a html page inside it. Page has 4 images that resize (useing javascript) depending on window size Here is load finction Code: window.onload = function(){
window.document.body.onload = initDocument;
};
function initDocument()
{
stretchFit("divMy", "bg");
stretchFit("divG", "bgG");
stretchFit("divTech", "bgTech");
stretchFit("divKB", "bgKB");
}
Any ideas how to load function after DOM is loaded? Hi guys, I am new here and am looking for a bit of help! I am building a website for a friend and am using Javascript. When I preview the site from my computer in Chrome/Firefox then all the JS elements render correctly. I am using jCarouselLite by the way and have used HTML Boilerplate too. However, when I upload the site the Carousel does not work... Also, I seem to have a lot of scripts kicking around inside the html so I will give you a list of those, but here are my external JS files so my question before posting up all the code are 1.) what is the problem with rendering the JS elements live on t'internet, and 2.) can I reduce the amount of JS files/scripts to help page loading times? css_browser_select.js modernizr-1.7.min.js jquery-1.6.1.min.js jcarousellite.js functions.js Code: $(document).ready(function(){
// Activate the main slider
$("#mainSlider").jcarousellite({
btnNext: "#sliderBtnNext",
btnPrev: "#sliderBtnPrev",
visible: 1
});
});
plugins.js script.js jquery.placeholder.min.js and this is the code inside my HTML: Head: Code: <!-- CSS: implied media="all" -->
<link rel="stylesheet" href="css/style.css" media="screen">
<link rel="stylesheet" media="handheld" href="css/handheld.css">
<!-- CSS Browser Compatibility -->
<script src="js/css_browser_select.js"></script>
<!-- Mobile viewport optimized: j.mp/bplateviewport -->
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<!-- All JavaScript at the bottom, except for Modernizr which enables HTML5 elements & feature detects -->
<script src="js/libs/modernizr-1.7.min.js"></script>
/Head and this is at the bottom of the Body: Code: <script src="js/libs/jquery-1.6.1.min.js"></script>
<script src="js/libs/jcarousellite.js"></script>
<script src="js/libs/functions.js"></script>
<!-- Grab Google CDN's jQuery, with a protocol relative URL; fall back to local if necessary -->
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.6.1/jquery.min.js"></script>
<script>window.jQuery || document.write("<script src='js/libs/jquery-1.6.1.min.js'>\x3C/script>")</script>
<!-- scripts concatenated and minified via ant build script-->
<script src="js/plugins.js"></script>
<script src="js/script.js"></script>
<!-- THIS MAY NEED TO BE REDONE! Placeholder for Forms -->
<script src="js/libs/jquery.placeholder.min.js"></script>
<script>
if (!Modernizr.input.placeholder){
$('input[placeholder], textarea[placeholder]').placeholder();
}
</script>
<!-- Form Submit -->
<script>
function submitForm()
{
document.contactPhone.submit();
}
</script>
<!-- Google Analytics Script - Change UA-XXXXX-X to be your site's ID -->
<script>
var _gaq=[["_setAccount","UA-XXXXX-X"],["_trackPageview"]];
(function(d,t){var g=d.createElement(t),s=d.getElementsByTagName(t)[0];g.async=1;
g.src=("https:"==location.protocol?"//ssl":"//www")+".google-analytics.com/ga.js";
s.parentNode.insertBefore(g,s)}(document,"script"));
</script>
<!-- Bookmark Script -->
<script>
function bookmark_us(url, title){
if (window.sidebar) // firefox
window.sidebar.addPanel(title, url, "");
else if(window.opera && window.print){ // opera
var elem = document.createElement('a');
elem.setAttribute('href',url);
elem.setAttribute('title',title);
elem.setAttribute('rel','sidebar');
elem.click();
}
else if(document.all)// ie
window.external.AddFavorite(url, title);
}
</script>
I have several list items in an html document. Each list item has an anchor tag and each anchor has an 'onmouseover' event. Is it possible to get the containing object for the event upon the mouseover? can someone please explain the code in this link. Just this small bit since i seen it in a few different places. it starts off with if (!e) ... please explain wth that means thank you so much heres the link - http://www.w3schools.com/js/tryit.as...ent_srcelement I assum the following html code: <div id="id1" onclick="click()">A<div> <div id="id2" onclick="click()">B<div> Do you know how to get ID = id2 when I onclick on A? Hello everyone, If I type the name, and I check and Gender Scholar, my button will appear What I am looking to: Check my buttons, and when I start typing the name, the button Submit appear, st if I delete the text, the Submit button disappear Here's the script: Code: <head>
<script type="text/javascript" src="jquery.validate.js"></script>
<script>
$(document).ready(function(){
$("#commentForm").validate();
});
function check_required(){
//alert(document.getElementById('rdo_boursier_oui').checked);
//alert(document.getElementById('txt_lastname').value != "");
if((document.getElementById('rdo_boursier_oui').checked == true
|| document.getElementById('rdo_boursier_non').checked == true) &&
(document.getElementById('rdo_sexe_eleve_m').checked == true ||
document.getElementById('rdo_sexe_eleve_f').checked == true)
&& (document.getElementById('txt_lastname').value != "" )
)
{
document.getElementById
('submit_etape2').style.display='block';
}else{
document.getElementById
('submit_etape2').style.display='none';
}
}
</script>
</head>
<form action="#" method="post" id="commentForm">
<input class="submit" type="submit" name="submit_etape2"
id="submit_etape2" value="" style="display:none;"/>
<p class="p_float">
<label for="lastname">Votre nom<span
class="required_red">*</span></label>
<input type="text" name="txt_lastname"
id="txt_lastname" value="" class="required" minlength="3"
onchange="check_required();"
/>
</p>
<p class="p_float rdo">
<label for="boursier">Boursier<span
class="required_red">*</span></label>
<input type="radio" name="rdo_boursier"
id="rdo_boursier_oui" value="" class="rdo_sexe_eleve snd_inscription
required" onclick="check_required();"/>Oui
<input type="radio" name="rdo_boursier"
id="rdo_boursier_non" value="" class="rdo_sexe_eleve snd_inscription
required" onclick="check_required();"/>Non
</p>
<p class="p_float rdo">
<label for="sexe">Sexe<span
class="required_red">*</span></label>
<input type="radio"
name="rdo_sexe_eleve" id="rdo_sexe_eleve_m" class="rdo_sexe_eleve
snd_inscription required" onclick="check_required();" value="">M
<input type="radio"
name="rdo_sexe_eleve" id="rdo_sexe_eleve_f" class="rdo_sexe_eleve
snd_inscription required" onclick="check_required();" value="">F
</p>
</form>
Hai all, iam trying to use java script code in my jsp page. i used a onclick event.while clicking on the button that wil goes to the javascript function(deleteRecord(name,subject)). this deleterecord() wil post the url request. my code is like this ----------------- function deleteRecord(name,subject){ document.write("name received is:"+name); f.method="post"; var url="http://localhost/myproject/DeleteRecord?"; var url1= "name="+name; var url2="subject="+subject; var URL=url+url1+url2; f.action(URL); f.submit(); } my onclickevent code is' <td width="20%" height="25" align="left" valign="middle"><input type="submit" name="delete" value="Delete" style="background-color:#ff0000;font-weight:bold;color:#ffffff;" onclick="deleteRecord(<%=rs.getString("name")%>,<%=rs.getString("subject")%>);" /></td> --------------------------------------------- wil iam running my jsp page internet explorer is giving in variable subject (error:'divi' is invalid).divi is the value of the parameter name which iam passing to the function . and mozilla firefox my script is not working there is some syntax issues as wel as browser issues...and with url syntax can any one help me... Regards, Divya |
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