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JavaScript - Making Images Load With Onclick
I have an image gallery with about 10 images. Its a very simple image gallery, basically you have "A" "B" "C" "D" etc, and for each letter you click on, JavaScript changes the relative image from hidden to block.
The problem I have is that all of the 10 images load in the background, despite the user not clicking on the corresponding letter, which wastes a ton of bandwidth. I have isolated and placed the image gallery code into a HTML file and included 3 pics so you can see it working: http://www.maxsurl.com/link.php?ref=rk925Lzd48 I don't know much about JavaScript, but I hope this code I just made up gives you can idea of what I am trying to achieve: Code: <SCRIPT type="text/javascript">
function pic1() {
load.pic('src="pic1.png"')
}
function pic2() {
load.pic('src="pic2.png"')
}
function pic3() {
load.pic('src="pic3.png"')
}
</SCRIPT>
<SPAN onclick="return pic1()">PIC 1</SPAN>
<SPAN onclick="return pic2()">PIC 2</SPAN>
<SPAN onclick="return pic2()">PIC 3</SPAN>
<IMG id="pic">
Does anyone have a suggestion on how I could achieve what I would like to do? If so, could you please show me a basic example of code so I can make sense of it (I am a visual learner). Similar TutorialsMy website contains a ton of hidden divs. I thought this would make everything easier for the user because now they can stay on one page and view tons of content but it is making my page load very slowly. Is there a way to not load the pages hidden content until the user clicks the link and makes it visible? I see various tutorials online but I am having trouble learning how to translate that to my site. So again this content is hidden, and an onclick makes it visible, but I would like the onclick to make it visible and load for the first time. Thank you for reading, link to site and code below. Source: By clicking the info or photo tabs you will see the toggle for hidden divs Code for my tabs: PHP Code: <?php if( $page <= 1 and !$public ) { ?> <div id="mngl-profile-tab-control"> <ul> <li id="mngl-board-tab-button" class="dark"><a href="javascript:mngl_set_active_tab('board');"><span><?php _e('Board', 'mingle'); ?></span></a></li> <li id="mngl-info-tab-button"><a href="javascript:mngl_set_active_tab('info');"><span><?php _e('Info', 'mingle'); ?></span></a></li> <li id="mngl-log-tab-button"><a href="javascript:mngl_set_active_tab('log');"><span><?php _e('Log', 'mingle'); ?></span></a></li> <li id="mngl-fav-tab-button"><a href="javascript:mngl_set_active_tab('fav');"><span><?php _e('Favorites', 'mingle'); ?></span></a></li> <li id="mngl-display-photo-tab-button"><a href="javascript:mngl_set_active_tab('display-photo');"><span><?php _e('Photos', 'mingle'); ?></span></a></li> <li id="mngl-video-tab-button"><a href="javascript:mngl_set_active_tab('video');"><span><?php _e('Videos', 'mingle'); ?></span></a></li> </ul> </div> <?php } ?> Code for one of the tabs content. The class mngl-hidden is just a display:none PHP Code: <div id="mngl-fav-tab" class="mngl-profile-tab mngl-hidden"> <div style="color:#171717; font-weight:bold;"><?php echo $user->first_name . "'s Favorites >> For Motivational Posts You Enjoy"?></div> <?php //require_once(MNGL_MODELS_PATH . "/MnglUser.php"); foreach ($fav_posts as $fav_post) { $author = MnglUser::get_stored_profile_by_id($fav_post->author_id); $owner = MnglUser::get_stored_profile_by_id($fav_post->owner_id); if($author and $owner) $this->display_board_post($fav_post,$public); } /*$this->display_board_post('5705',$public);*/ //echo count($fav_posts).'--'.$page_size; ?> <?php if( count($fav_posts) >= $page_size ) { ?> <!-- <div id="mngl-older-posts"><a href="javascript:mngl_show_older_posts( <?php echo ($page + 1) . ",'" . (($public)?'activity':'boards') . "','" . (($public)?$mngl_user->screenname:$owner->screenname) . "'"; ?> )"><?php _e('Show Older Posts', 'mingle'); ?></a></div>--> <?php } ?> </div> Javascript that Sets Active Tab Code: function mngl_set_active_tab( tab )
{
jQuery('#mngl-profile-tab-control li').removeClass('mngl-active-profile-tab');
jQuery('#mngl-' + tab + '-tab-button').addClass('mngl-active-profile-tab');
jQuery('.mngl-profile-tab').hide();
if((tab != 'board') && (tab != 'fav')){
jQuery('.mngl-board-post').hide();
} else {
jQuery('.mngl-board-post').show();
}
jQuery('#mngl-' + tab + '-tab').show();
}
I am a javascript newbie. I have a radio website that runs a live stream 24/7. The live stream is loaded in to an iframe named "stream". I only ever have 2 files that show in that iframe. 1 for when the user has the stream on and another for when they turn it off. stream_on.php and stream_off.php I also have podcasts on the site and my goal is when the user clicks the .swf object to play the podcast, the live stream in the iframe changes to stream_off.php so that the 2 audios don't overlap each other. Here's the code I have so far for the .swf object. PHP Code: <object type='application/x-shockwave-flash' data='player_mp3_maxi.swf' width='50' height='20' class='blur' onclick="window.open('stream_off.php','stream')\"> <param name='movie' value='player_mp3_maxi.swf' /> <param name='bgcolor' value='#666666'>"; if ($row['location'] == "") { echo "<param name='FlashVars' value='mp3=". $site ."podcasts/". $filename ."&showslider=0&showstop=1&autoload=0&bgcolor1=330066&width=50' />"; } else { echo "<param name='FlashVars' value='mp3=http://". $row['location'] . $filename ."&showslider=0&showstop=1&autoload=0&bgcolor1=330066&width=50' />"; } </object> And the code for the iframe. It's default state is stream_on.php since on load I want the stream to start right away. I only need it to change upon clicking of any .swf object on the page. PHP Code: <iframe src='stream_on.php' id='stream' marginheight='0' width='195' height='110' frameborder='0' scrolling='no'></iframe> As you can see, I put the onclick in the object tag. Is this correct ? Is there a piece of javascript code I am missing ? Please Help. Hi, I'm trying to make a comment field that only appears once you've clicked the "Add comment link". I'd like it to replace the add comment link. I assume this is an onclick event of some sort, but I'm not sure quite how to go about doing it. Help would be highly appreciated. Hello Guys, Seems im moving on from the css forums to java (im scared). I am a keen learner but an absolute beginner to java. What i need to be able to do is.. When a student clicks on a link in the main menu e.g number I need a something that can load the following two divs. #contentwindow #three I already have jquery running on the page and all css is embeded for now if that is helpful. http://www.bushcottages.co.uk/new.htm Thanks your help is supremely appreciated Peter I'd like to place an AJAX call to load another SELECT menu in my form, and I'm having trouble finding a tutorial. Can someone point me to a good tute, or provide some guidance/examples here? For your Copying/Pasting pleasure , here's an example button for which I'd include the onclick(): Code: <button type="button" >Add</button> And here's an example SELECT menu: Code: <select id="idNumber" name="weekday_1['workPeriod_new'][] > <option value="1" >one</option> <option value="2" >2</option> </select> Thanks-a-bunch, ~ Mo NOTE: Overall, I'm pretty green in JS. Hello all, my second post! I finally got the below script working in Firefox and was really pumped about it until I realized it didn't load in Google chrome or Safari. What this script does is its a dual onclick event which makes a hidden div appear and loads an iframe within the now visible div. Here is the code, I would love any input on how to make this work in other browsers. Here is the header code: Code: <SCRIPT type="text/javascript">
<!--
var state = 'none';
function showhide(layer_ref) {
if (state == 'block') {
state = 'none';
}
else {
state = 'block';
}
if (document.all) { //IS IE 4 or 5 (or 6 beta)
eval( "document.all." + layer_ref + ".style.display = state");
}
if (document.layers) { //IS NETSCAPE 4 or below
document.layers[layer_ref].display = state;
}
if (document.getElementById &&!document.all) {
hza = document.getElementById(layer_ref);
hza.style.display = state;
}
}
//-->
</script>
<SCRIPT type="text/javascript">
function loadIframe(iframeName, url) {
if ( window.frames[iframeName] ) {
window.frames[iframeName].location = url;
return false;
}
else return true;
}
</script>
Here is the code on the page where a link click shows the hidden div and loads the iframe contained. Code: <p><a href="#" onclick="showhide('div1');return loadIframe('ifrm1', 'http://www.google.com');">show/hide me</a></p>
</td></tr>
<div id="div1" style="display: none; position: fixed; z-index:4; width: 1010px; height: 500px; left: 5%; top: 15%; background-color: #f0f0f0; border: 1px solid #000; padding: 10px;"><iframe name="ifrm1" id="ifrm1" width="100%" height="90%" scrolling="yes" frameborder="0">Sorry, your browser doesnt support iframes.</iframe><p><a href="#" onclick="showhide('div1')">close</a></div>';
As always, any input is greatly appreciated! Hi all, I have a client who wants a gallery of images to pop up on her enter page similar to this site, http://bit.ly/mUscmo . It won't be identical, but she likes the way the images all pop up and then just stay there. I know how to function JavaScript, but I don't know how to write it from scratch. Is there any where I could find a code that does something similar to this? Or, does anyone know the basic coding that I'd need for this? Thanks! Q Hey guys, I'm new to the forums, so if i post anything wrong let me know. I'm trying to use links to hide all the images, and show just ones from a certain category. I've used the img name attribute to group them and tried to do a function that shows only one img. here's the script... <script language="javascript"> function showone(x) { document.getElementByName('a').style.display='none'; document.getElementByName('b').style.display='none'; document.getElementByName('c').style.display='none'; document.getElementByName(x).style.display='block'; } </script> and the code... <a href="#" onClick="showone('a'); ">show CAT. A</a><br> <a href="#" onClick="showone('b'); ">show CAT. B</a><br> <a href="#" onClick="showone('c'); ">show CAT. C</a><br> <a href="#">show all cats</a><br> <br> <img name="a" src="imgs/a1.jpg" /><br> <img name="b" src="imgs/b1.jpg" /><br> <img name="a" src="imgs/a2.jpg" /><br> <img name="a" src="imgs/a3.jpg" /><br> <img name="b" src="imgs/b2.jpg" /><br> <img name="c" src="imgs/c1.jpg" /> Here's what it looks like... http://mattfalcone.com/tests/showhide.html except the links don't work like they should, and I can't figure out why. I'm an idiot with javascript, so if feel free to make fun of me, and if anyone knows how to get this simple function to work, please let me know and I'de appreciate it. Hi, well I have like 1000 images on the same page, unfortunately I can't use sprites on them, as the number of images increases continuously. So you can imagine it sends 1000 http requests, so it takes lots of time for the images to load plus it's not good experience for the visitors. I have seen one of the scripts named as Lazy Load, but I was thinking if there is more SMARTER WAY of loading images (good regarding SEO, loads images faster and is good for user experience). So, I was wondering if there is a way out to loading images in a better way? Hello everyone! This is my first post. I know some html and css, but not much about javascript, and I have an existential problem with a portfolio i'm helping to design: The portfolio itself is for a night photographer that covers different events. For each event there is a page where the photos from that event are displayed. The thing is i don't want to write html code for each and every event, so i've been investigating how to automate this process and i've been answered: javascript. I want a horizontal layout page for each event, where all the images from its folder are displayed, with a horizontal scrollbar and no vertical scrollbar. I've managed to cover this with a combination between css and javascript code. The javascript code i'm using: <script src="../../docs/js/jquery-1.2.6.min.js" type="text/javascript" charset="utf-8"></script> <script type="text/javascript" charset="utf-8"> $(function(){ $("#page-wrap").wrapInner("<table cellspacing='30'><tr>"); $(".post").wrap("<td>"); }); </script> Then i call for each image in the body of the html page: <div id="page-wrap"> <div class="post"> <img src="../../images/baobab04.02.11/1.jpg" width="720" height="480" border="0" /> </div> <div class="post"> <img src="../../images/baobab04.02.11/2.jpg" width="720" height="480" border="0" /> </div> </div> I've read about this function to loop for each image in a directory: foreach(string fileName f in Directory.GetFiles("SomeDirectory")) { ... } But i'm lost as to how to implement it and make a new <div class="post"> for each file in the directory. Thank you all in advance FIXED Hi, I'm trying to this script: http://www.lukescoates.com/designs/plusimageviewer.js to display an enlarged image when a thumbnail is clicked - the page in question is: http://lukescoates.com/designs/portfolio.php. It seems to be working for the most part, however, when I first load the page, sometimes the "View Full Image" buttons don't align with the images, they bulk up together: http://screencast.com/t/r1cauKx6X When I reload the page, they align properly. The next problem is that when I first click on the "View Full Image", the popup is not centered on the page: http://screencast.com/t/4LYou1WfXXJ If I click it a second time, it centers perfectly. Any suggestions? The CSS also associated with this is: http://lukescoates.com/designs/plusimageviewer.css Really appreciate any help! Luke FIXED Hi, thanks for your time first of all- secondly, I am at a loss for what to do next to get these slideshows functioning. You can see the current iteration he http://www.pauljameswilliams.com/portfolio.html I am using hte plug in galleria, and I have got it working in a stand alone version with the same images and and folder structure. The difference may be that I have the content nested in these div tags? to create tabs. i really don't know. Here is the structure within the portfolio tab, under the Identity heading: ( there will be more images once I get this working: Code: <div> <div class="demo"> <ul class="gallery_demo galleria"> <li><img src="images/portfolio01.jpg" alt="Flowing Rock" title="Flowing Rock Caption"></li> <li><img src="images/portfolio02.jpg" alt="Stones" title="Stones - from Aple images"></li> <li><img src="images/portfolio03.jpg" alt="Grass Blades" title="Apple nature desktop images"></li> </ul> <div class="galleria_container"></div> <p class="nav"><a href="#" onclick="$.galleria.prev(); return false;">previous</a> | <a href="#" onclick="$.galleria.next(); return false;">next</a></p> </div> </div> I can give you more code if necesary, but I don't want to overwhelm anyone. thanks. 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 I am a Javascript newbie. I'm trying to code a page that has thumbnails of smaller images that when each image is clicked a larger image will load above the thumbnails, plus text within a div will change, plus more Javascript behind a shopping cart button will change. I'm not sure if this is even possible and have been searching and experimenting with the code without success. To view the webpage I'm working on: http://toymakerpress.com/website/Fre.../TestPage.html If you click on the dog image you can see where I'm headed (I also haven't had any luck loading the shopping cart button with it's unique Javascript code). Here is my code so far: The shopping cart button (I would like this code to swap out everytime I load a new image): Code: <a href="https://www.e-junkie.com/ecom/gb.php?c=cart&i=A0085&cl=82487&ejc=2" rel="nofollow" target="ej_ejc" class="ec_ejc_thkbx" onclick="javascript:return EJEJC_lc(this);"><img src="../images/addtocart1.gif" border="0" alt="Add to Cart"/></a> The code I'm working on for each thumbnail image: Code: <td><div align="center">
<a href="javascript:changeImage('../images/FreePlans/littledog-4Lg.jpg') "javascript:="javascript:"" onClick="load_content('orderform','more content') "><img src="../images/FreePlans/littledog-4.jpg" width="140" height="140" border="0" /></a></div></td>
Thanks! Hi all Is there a way to get the image(s) to load into the table after the page has loaded instead of the way I have it now? I have 4 tabs, but I would like the imgs in tabs 2,3,4 to load after page load. Example of how the tabs look. Code: <div class="tabbertab">
<h2>Australia_____</h2>
<table width="100%" border="0" cellpadding="3" cellspacing="1" bgcolor="#FFFFCC">
<caption class="highlight_Red">澳洲 Australia
</caption>
<tr>
<td><a href="pages/promotion.html#aus_ACE" rel="nofollow" target="_blank"><img src="pages/images/Pics/AUS/ace.jpg" alt="ACE / ATTC" width="110" height="69" border="0" align="left" class="ozimg_L"/> ...a few more images etc
the other tabs look the same. LT I'm currently working on a project and I am doing a bunch of image switching. I'm having a problem with the following... I have seven medium image objects and one small one. One is at the top and the other 7 are below. When one of the 7 is clicked, it then becomes the one up top and the one up top then takes the place of the image clicked. This needs to be able to happen no matter which of the seven i click. Also when you click one of the seven it runs a script to change 9 other images in the center of the page. this isnt too important because i have it working already. What i have is, each of the seven images run their function that changes the 9 center images and then it runs another function. What i need is for that function to determine which company for example(shaws, lowes, target) the top image belongs to and replace the image that was clicked with the top one. But i also need to replace the NAME="" and ONCLICK="function()" with the proper ones for the original company up top. Please if you can understand what im trying to do let me know, if you need further clarification i can do so. i can draw a picture of what im trying to do or the layout if needed but i cant necessarily show anyone the project due to a non-disclosure. This script displays a link to a registration/login form that loads in a light box for Joomla. I've been goin nuts trying to figure out how to get this to load on page load with a delay. Anyone know how to get this done? PHP Code: <?php JHTML::_('behavior.mootools'); $document = JFactory::getDocument(); $document->addStyleSheet(JURI::base() . 'media/system/css/modal.css'); $document->addScript(JURI::base() . 'media/system/js/modal.js'); $document->addScriptDeclaration("window.addEvent('domready', function() {SqueezeBox.initialize({});});"); $user = & JFactory::getUser(); $uri = JFactory::getURI(); $url = $uri->toString(); $return = base64_encode($url); ?> <div id="lbframeid" style="position:absolute;top:1px;left:1px;height:0px;width:0px;overflow:hidden"> <a href="http://www.wowjoomla.com/"><h1>Joomla Login LightBox powered by WowJoomla.com</h1> </a> </div> <?php if ($user->get('guest')) :?> <a href="<?php echo JRoute::_('index.php?option=com_loginbox')?>" onclick="SqueezeBox.fromElement(this); return false;" rel="{handler: 'iframe', size: {x: 660, y: 500}}"><?php echo JText::_('SIGNUP_LOGIN')?></a> <?php else: ?> <?php echo JText::sprintf( 'HINAME', $user->get('name') ); ?> <br> <a href="javascript:void(0);" onclick="LB_onLogout(); return false;"><?php echo JText::_('LOGOUT')?></a> <?php endif; ?> <script type="text/javascript"> function LB_onLogout() { var form = new Element('form'); form.setProperty('method', 'POST'); form.setProperty('target', '_self'); form.setProperty('action', 'index.php'); var input = new Element('input'); input.setProperty('type', 'hidden'); input.setProperty('name', 'option'); input.setProperty('value', 'com_user'); form.appendChild(input); var input = new Element('input'); input.setProperty('type', 'hidden'); input.setProperty('name', 'task'); input.setProperty('value', 'logout'); form.appendChild(input); var input = new Element('input'); input.setProperty('type', 'hidden'); input.setProperty('name', 'return'); input.setProperty('value', '<?php echo $return; ?>'); form.appendChild(input); $E('body').appendChild(form); form.submit(); } </script> Is it possible disable an onclick after clicking it and then enable it from another onclick by id Code: <img id="one" href="images/homepage/sliders/bonus_button.jpg" style="position:relative; top:30px; left:50px; height:30px; width:70px; float:left;"> This code runs when it is clicked: Code: $("#one").click(function() {
runEffectB();
return false;
});
What I would like to happen is for either runEffectB() to not run if it was just run or to disable the #one.click once it has run. I am assuming I will be able to re-enable it from another onclick running a similar function. This is jquery and jquery ui if that helps. Any ideas much appreciated. Hi guys, I am trying to insert the following call into my page; Code: <script type="text/javascript" defer="true">
$('#query').autocomplete({
serviceUrl:'service/autocomplete.ashx',
minChars:1,
delimiter: /(,|;)\s*/, // regex or character
maxHeight:400,
width:250,
deferRequestBy: 0, //miliseconds
params: { country:'Yes' }, //aditional parameters
// local autosugest options:
lookup: ['January', 'February', 'March', 'April', 'May'] //local lookup values
});
</script>
It works fine in all browsers except ie(6,7,8) Code: Internet Explorer can not open website. Operation Aborted. I understand it is caused by the jquery autocomplete function loading before the page / DOM has fully loaded. I tried adding Defer="true" to the script however this doesn't seem to work. Could someone please tell me what i must add to the script so that it loads after the dom has fully loaded? Thanks guys George |
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