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JavaScript - Get Image Width In Firefox At Onload
Hi CF,
I'm a graphic/designer and occasional Actionscript developer making what's turning out to be a rather clumsy transition into Javascript. Be gentle. I'm trying to create a script that will load an external image and test whether it's in my document's "tall" or "wide" formats before placing it in the page. This is easy in IE just using imageObject.width, but Firefox seems to always return a value of 0, no matter what I do (this includes using imageObject.naturalWidth). Refreshing the page suddenly causes the wide mode to activate, but any time before the image is actually placed in the document, FF just won't read the width. I've tried maybe a dozen different scripts, but here's my most recent: Code: function testImage(){
if (defaultImage.naturalWidth > 320){
wideMode = true;
}
placeImage();
}
function loadFirstImage(){
defaultImage.src = "images/myGIF.gif";
defaultImage.onLoad = testImage();
}
Any ideas on how to accurately get an image object's width after loading, but before placing it on the page? Any help is much appreciated. Thanks, ~gyz Similar TutorialsHello Can anyone help with the following problem On the following page http://www.stroudskittles.co.uk/signingon.html I have a Body onload event (to load the chained Menu) and a windows.onload event (to load the IFrame Ticker) If I open the page in Internet explorer both scripts function; however in Firefox I'm having problems. The Chained Menu works, however the IFrame Ticker does not display. Both events ahave ben placed on the boady tag. Can anyone advise how I can get both to display in Firefox Can anyone I have an ajax member search form that I'm just about done with but I have a couple of really irritating firefox issues. The first one is the lack of support of the click() method. I added the following but it still doesn't want to work: Code: <script>
if(typeof HTMLElement != 'undefined' && !HTMLElement.prototype.click) {
HTMLElement.prototype.click = function() {
var evt = this.ownerDocument.createEvent('MouseEvents');
evt.initMouseEvent('click', true, true, this.ownerDocument.defaultView, 1, 0, 0, 0, 0, false, false, false, false, 0, null);
this.dispatchEvent(evt);
}
}
</script>
The second issue I'm having is with dependent dropdown selects not hiding in firefox. This seems to be due to the other functions that need to trigger onload and is dependent on what order it's loaded. Here's how I'm handling the onload functions: Code: <script>
function addLoadEvent(func) {
var oldonload = window.onload;
if (typeof window.onload != 'function') {
window.onload = func;
} else {
window.onload = function() {
if (oldonload) {
oldonload();
}
func();
}
}
}
addLoadEvent(function() {
ajaxFunction(document.getElementById('country').value);
handleOnChange(country);
setupDependencies('cbcheckedadminForm', 'adminForm', 'locationsearch');
handleOnChange2(cb_state);
});
</script>
I don't have an issue with either of these in chrome. IE is a WHOLE other story, it's all kinds of wonky there. I still need to go through and do some debugging for that. Any quick ideas off hand on these two issues? I'll try and post the full php file in a reply. I've been looking for a way to fade a selection of images in on load while keeping their background present until they fade in. similar to whats been used on this site: http://inventorystudio.co.uk/ thought this would be relatively simple but seems to be harder than i expected. any suggestions? Greetings. I am using an image galery script written by another person - frogjs (http://www.puidokas.com/portfolio/frogjs/) This script is showing current pic in the middle of the screen and next/previous little tumbnails on right/left sides of the current. When you click the next pic, current pic is zoomed out to the left and next pic is zoomed in to the middle, then replaced by a full-size pic. Then a new tumbnail appears on the place of the next pic you clicked. Zooming and stuff is done with another thirdparty script "effects" (script.aculo.us effects.js v1.7.0) My problem is, the actual next tumbnail is not being shown until the big image is preloaded for this thumbnail. This is done to make it look smooth. So, when i click "next" picture, the next picture is shown, but switching to the following one is delayed until that following one is actually loaded. It is done by making an imgpreloader=Image() object and setting imgpreloader.onload to a function, then setting imgpreloader.src to the big image path. The big image then is supposed to be automatically loaded by browser. When its done, an onload event should fire and that should execute the function that shows the thumbnail for the big picure. Problem is, sometimes the onload event won't happen! And since it wont happen, my gallery will "stall" - it will never show next thumbnail and never allow to continue viewing. And if i show next thumbnail immediately, the next picture would be shown partially and that does not look good. Moreover, i've seen numerous image galeries on numerous sites and all of them seem to work with onload because i only see the image when its loaded, until that i see some "wait" or "grey screen" thing. Never had a problem with those stalling. Problem happens mostly with Opera and Chrome and happens seldom with IE. So, question is, do you probably know what can prevent browsers from firing and OnLoad event or from loading a picture when its suppied as an src for an Image() object? Do you know a workaround that can "poke" the browser to remind it to get the damn picture again and not to stall. Hey guys, I'm trying to accomplish something similar to what the develop on this site did: http://backlinkwatch.com/ When you click on the text area, a clickable image, with a 50% black opacity background overlay, and an exit either through a link or clicking outside of the box, shows up. I want to accomplish the same thing, but have the image popup show up on the page load instead of requiring a click of the text area. In addition, I would like this popup only once to each IP address; ie, if you visit a page on my site, this will show up, but if you close it and refresh the page or visit another page on the site a cookie will be stored that knows its already been opened once and it won't try to do it again. Thanks to anyone who can help me with this! I want to set the width of a div to be the same width of the image inside the div. The following code works great. But... The images are different widths, so both wrappers are set to the width of the first image. Without having to add an ID to each wrapper or image, can the wrapper width be set to the image width using the name of the image as the unique identifier? Any help would be great! PHP Code: jQuery: $(document).ready(function(){ var newWidth = $('div.wrapper img').attr('width'); $('div.wrapper').width(newWidth); }); HTML: <div class="wrapper"> <p><img src="image1.jpg" width="200" /><br /> Caption</p> </div> <div class="wrapper"> <p><img src="image2.jpg" width="250" /><br /> Caption</p> </div> Hello guys ! I'm fairly new to JavaScript, so this is maybe an obvious mistake, but here is the code that doesn't work, it goes inside the body of my document : Code: <script type="text/javascript">
aImg = new Image();
aImg.src = "myimage.jpg";
aHeight = aImg.height;
aWidth = aImg.width;
document.write(aHeight + "," + aWidth);
document.write("<img src=" + aImg.src + ">");
</script>
While the image is displayed, the value written for the height and width is "0". This code worked fine when I compiled it in the "Tryit Editor" of w3schools.com (I told you I was new to JS :P), but it fails when I insert it in a page and then view the page with Google Chrome or IE7. Of course this is not all fo the code, I intend to display the image differently depending of its size... but I need to get that part right before moving on Any help would be greatly apreciated, thanks ! I have a list of thumbnails generated by Wordpress. I've been trying to piece together a script that would change the ID of the parent element based on the image inside of it I can't seem to get anywhere, does anyone have a simple solution? I need the id of the li to be "sm" or "smp" depending on the width of the image inside of it (landscape or portrait) Code: <li class="frame" id="sm">
<div class="frm" id="frame1">
<img src="image.jpg">
</div>
</li>
I am trying to write a custom BBcode for a forum I moderate. I don't have the licensing information because its not my forum and i am just a moderator. If anyone wants to verify the legitimacy of the forum I work for please PM me and I will try and get you any information I can. This code that I has works perfect in EditRocket, but when I add it to the custom BBcode the image does not resize. Original EditBucket Code: Code: <html>
<head>
<script type="text/javascript">
function show_confirm(testimg)
{
var theImg = document.getElementById('testimg');
var theWidth = theImg.width;
var theHeight = theImg.height;
if (theWidth<250)
{
theImg.width = theWidth;
theImg.height = theHeight;
}
else
{
theImg.width = 250;
theImg.height = theHeight*(250/theWidth);
}
}
</script>
</head>
<body>
<img id="testimg" onload="show_confirm(testimg)" src="http://upload.wikimedia.org/wikipedia/commons/thumb/8/84/Example.svg/600px-Example.svg.png">
</body>
</html>
vBulletin Custom BBcode: title: Test Image bbcode tag name: timage Replacement: Code: <script type="text/javascript">
function show_confirm(testimg)
{
var theImg = document.getElementById('testimg');
var theWidth = theImg.width;
var theHeight = theImg.height;
if (theWidth<250)
{
theImg.width = theWidth;
theImg.height = theHeight;
}
else
{
theImg.width = 250;
theImg.height = theHeight*(250/theWidth);
}
}
</script>
<body>
<img id="testimg" onload="show_confirm(testimg)" src="{param}">
</body>
Example: [timage]http://upload.wikimedia.org/wikipedia/commons/thumb/8/84/Example.svg/600px-Example.svg.png[/timage] Description: Embed imaged inline with forum Option: no I came across your forums here and it looked like a great place to get some help, and help is exactly what I need! I have been struggling with this javascript that changes an image and its corresponding useMap. For reference: - All images are the same size and located in the same directory, except the main map image - All images are preloaded (I did this just in case it was an image problem) - The page works fine in Firefox, and fine in IE until it crashes - http://www.forthecode.com/imagemap/untitled.htm The Problem: - When clicking on a state in the main image, the state image appears, if you then click on the "return to the overview" it returns to the overview image then promptly crashes IE within 1-2 seconds. - This even happens in a completely blank page (no other content) Exceptions: - Clicking on the state Mississippi does not cause this problem (you can go back and forth with Mississippi without problem) - Tennessee, Ohio, Arkansas, Illonois crash as soon as their state map comes up! The Javascript function itself: Code: <script language="Javascript">
function changemap(vari){
var vari;
var stoptime;
if(vari=="regionview"){
document.regionmap.src = "/images/branchmap2.jpg";
stoptime = setTimeout( function changemap1(){ document.regionmap.useMap="#Map"; clearTimeout(stoptime);} , 300);
}
else{
document.regionmap.src = "/images/states/" + vari + ".jpg";
stoptime = setTimeout( function changemap2(){ document.regionmap.useMap="#"+vari; clearTimeout(stoptime);} , 300);
}
}
</script>
The image tag and image maps: Code: <img src="images/branchmap2.jpg" name="regionmap" usemap="#Map" border="0">
<map name="Map">
<area shape="rect" coords="144,14,189,91" href="#" onClick="javascript: changemap('indiana');" alt="Indiana" title="Indiana">
<area shape="poly" coords="139,91,137,104,132,108,132,115,128,118,160,110,167,109,189,91" href="#" onClick="javascript: changemap('indiana');" alt="Indiana" title="Indiana">
<area shape="poly" coords="230,138,123,139,121,131,127,122,140,117,153,115,170,107,191,90,194,85,202,87,213,90,221,91,225,90,232,92,232,100,238,107,242,114,245,119" href="#" onClick="javascript: changemap('kentucky');" alt="Kentucky" title="Kentucky">
<area shape="poly" coords="153,177,143,244,144,280,127,287,115,286,113,272,83,271,78,264,86,249,93,239,89,228,88,212,90,202,97,192,105,178" href="#" onMouseUp="javascript: changemap('mississippi');" alt="Mississippi" title="Mississippi">
<area shape="poly" coords="87,226,17,227,16,212,7,212,3,128,108,130,107,142,113,142,120,128,121,131,121,141" href="#" onClick="javascript: changemap('arkansas');" alt="Arkansas" title="Arkansas">
<area shape="poly" coords="246,118,255,98,272,87,284,64,283,11,265,17,258,25,241,31,217,18,187,18,190,81,218,90,224,87,232,92,235,100" href="#" onClick="javascript: changemap('ohio');" alt="Ohio" title="Ohio">
<area shape="poly" coords="124,116,128,121,120,128,111,140,109,129,23,127,21,70,15,60,2,33,74,33,79,39,78,51,95,76,103,77,100,87,101,95,108,103,113,111,114,118" href="#" onClick="javascript: changemap('missouri');" alt="Missouri" title="Missouri">
<area shape="poly" coords="129,117,131,109,136,104,138,91,144,80,142,19,137,4,99,3,102,14,94,22,87,22,90,34,81,45,78,50,94,75,105,77,103,88,104,97,112,107,116,114" href="#" onClick="javascript: changemap('illonois');" alt="Illonois" title="Illonois">
<area shape="poly" coords="204,177,109,176,123,139,249,139" href="#" onMouseUp="javascript: changemap('tennessee');" alt="Tennessee" title="Tennessee">
</map>
<map name="arkansas">
<area shape="rect" coords="240,135,284,163" href="/branches/westmemphis.php" alt="West Memphis" title="West Memphis">
<area shape="circle" coords="209,143,7" href="/branches/westmemphis.php" alt="West Memphis" title="West Memphis">
<area shape="rect" coords="130,275,283,290" href="#" onClick="javascript: changemap('regionview');" alt="Overview" title="Overview">
</map>
<map name="mississippi">
<area shape="rect" coords="20,177,64,191" href="/branches/jackson.php" alt="Jackson" title="Jackson">
<area shape="circle" coords="103,183,8" href="/branches/jackson.php" alt="Jackson" title="Jackson">
<area shape="rect" coords="217,198,277,214" href="/branches/hattiesburg.php" alt="Hattiesburg" title="Hattiesburg">
<area shape="circle" coords="175,208,7" href="/branches/hattiesburg.php" alt="Hattiesburg" title="Hattiesburg">
<area shape="rect" coords="222,96,279,111" href="/branches/columbus.php" alt="Columbus" title="Columbus">
<area shape="circle" coords="195,106,8" href="/branches/columbus.php" alt="Columbus" title="Columbus">
<area shape="rect" coords="222,71,261,85" href="/branches/tupelo.php" alt="Tupelo" title="Tupelo">
<area shape="circle" coords="174,84,6" href="/branches/tupelo.php" alt="Tupelo" title="Tupelo">
<area shape="rect" coords="130,275,283,290" href="#" onClick="javascript: changemap('regionview');" alt="Overview" title="Overview">
</map>
<map name="missouri">
<area shape="rect" coords="195,262,243,275" href="/branches/sikeston.php" alt="Sikeston" title="Sikeston">
<area shape="circle" coords="216,199,7" href="/branches/sikeston.php" alt="Sikeston" title="Sikeston">
<area shape="rect" coords="247,173,280,186" href="/branches/ozora.php" alt="Ozora" title="Ozora">
<area shape="circle" coords="206,182,6" href="/branches/ozora.php" alt="Ozora" title="Ozora">
<area shape="rect" coords="232,158,278,169" href="/branches/sullivan.php" alt="Sullivan" title="Sullivan">
<area shape="circle" coords="194,165,7" href="/branches/sullivan.php" alt="Sullivan" title="Sullivan">
<area shape="rect" coords="228,128,275,142" href="/branches/stlouis.php" alt="St. Louis" title="St. Louis">
<area shape="circle" coords="206,137,8" href="/branches/stlouis.php" alt="St Louis" title="St Louis">
<area shape="rect" coords="198,97,258,112" href="/branches/wentzville.php" alt="Wentzville" title="Wentzville">
<area shape="circle" coords="182,130,6" href="/branches/wentzville.php" alt="Wentzville" title="Wentzville">
<area shape="rect" coords="130,275,283,290" href="#" onClick="javascript: changemap('regionview');" alt="Overview" title="Overview">
</map>
<map name="kentucky">
<area shape="rect" coords="24,218,72,231" href="/branches/paducah.php" alt="Paducah" title="Paducah">
<area shape="circle" coords="46,190,6" href="/branches/paducah.php" alt="Paducah" title="Paducah">
<area shape="rect" coords="35,127,95,141" href="/branches/henderson.php" alt="Henderson" title="Henderson">
<area shape="circle" coords="63,174,7" href="/branches/henderson.php" alt="Henderson" title="Henderson">
<area shape="rect" coords="94,218,175,232" href="/branches/bowlinggreen.php" alt="Bowling Green" title="Bowling Green">
<area shape="circle" coords="127,188,6" href="/branches/bowlinggreen.php" alt="Bowling Green" title="Bowling Green">
<area shape="rect" coords="108,75,159,90" href="/branches/louisville.php" alt="Louisville" title="Louisville">
<area shape="circle" coords="144,130,7" href="/branches/louisville.php" alt="Louisville" title="Louisville">
<area shape="rect" coords="179,75,232,89" href="/branches/georgetown.php" alt="Lexington" title="Lexington">
<area shape="circle" coords="193,127,8" href="/branches/georgetown.php" alt="Lexington" title="Lexington">
<area shape="rect" coords="130,275,283,290" href="#" onClick="javascript: changemap('regionview');" alt="Overview" title="Overview">
</map>
<map name="indiana">
<area shape="rect" coords="18,199,73,213" href="/branches/vincennes.php" alt="Vincennes" title="Vincennes">
<area shape="circle" coords="110,204,6" href="/branches/vincennes.php" alt="Vincennes" title="Vincennes">
<area shape="rect" coords="210,180,273,193" href="/branches/clarksville.php" alt="Clarksville" title="Clarksville">
<area shape="circle" coords="187,186,6" href="/branches/clarksville.php" alt="Clarksville" title="Clarksville">
<area shape="rect" coords="211,117,276,132" href="/branches/indianapolis.php" alt="Indianapolis" title="Indianapolis">
<area shape="circle" coords="159,124,5" href="/branches/indianapolis.php" alt="Indianapolis" title="Indianapolis">
<area shape="rect" coords="211,101,250,113" href="/branches/muncie.php" alt="Muncie" title="Muncie">
<area shape="circle" coords="178,116,7" href="/branches/muncie.php" alt="Muncie" title="Muncie">
<area shape="rect" coords="212,46,257,60" href="/branches/fremont.php" alt="Fremont" title="Fremont">
<area shape="circle" coords="185,55,7" href="/branches/fremont.php" alt="Fremont" title="Fremont">
<area shape="rect" coords="36,73,92,86" href="/branches/ftwayne.php" alt="Ft. Wayne" title="Ft. Wayne">
<area shape="circle" coords="179,79,5" href="/branches/ftwayne.php" alt="Ft. Wayne" title="Ft. Wayne">
<area shape="rect" coords="36,109,87,121" href="/branches/lafayette.php" alt="Lafayette" title="Lafayette">
<area shape="circle" coords="138,113,6" href="/branches/lafayette.php" alt="Lafayette" title="Lafayette">
<area shape="rect" coords="130,275,283,290" href="#" onClick="javascript: changemap('regionview');" alt="Overview" title="Overview">
</map>
<map name="illonois">
<area shape="rect" coords="28,184,89,197" href="/branches/estlouis.php" alt="East St. Louis" title="East St. Louis">
<area shape="circle" coords="126,192,6" href="/branches/estlouis.php" alt="East St. Louis" title="East St. Louis">
<area shape="circle" coords="148,153,5" href="/branches/effingham.php" alt="Effingham" title="Effingham">
<area shape="rect" coords="218,146,273,159" href="/branches/effingham.php" alt="Effingham" title="Effingham">
<area shape="rect" coords="219,120,260,134" href="/branches/urbana.php" alt="Urbana" title="Urbana">
<area shape="circle" coords="164,130,6" href="/branches/urbana.php" alt="Urbana" title="Urbana">
<area shape="rect" coords="130,275,283,290" href="#" onClick="javascript: changemap('regionview');" alt="Overview" title="Overview">
</map>
<map name="tennessee">
<area shape="rect" coords="0,199,49,213" href="/branches/memphis.php" alt="Memphis" title="Memphis">
<area shape="circle" coords="25,170,7" href="/branches/memphis.php" alt="Memphis" title="Memphis">
<area shape="rect" coords="41,80,90,94" href="/branches/jacksontn.php" alt="Jackson" title="Jackson">
<area shape="circle" coords="64,149,8" href="/branches/jacksontn.php" alt="Jackson" title="Jackson">
<area shape="rect" coords="130,275,283,290" href="#" onClick="javascript: changemap('regionview');" alt="Overview" title="Overview">
</map>
<map name="ohio">
<area shape="rect" coords="49,221,105,237" href="/branches/cincinatti.php" alt="Cincinatti" title="Cincinatti">
<area shape="circle" coords="74,162,7" href="/branches/cincinatti.php" alt="Cincinatti" title="Cincinatti">
<area shape="rect" coords="6,138,46,151" href="/branches/dayton.php" alt="Dayton" title="Dayton">
<area shape="circle" coords="91,146,6" href="/branches/dayton.php" alt="Dayton" title="Dayton">
<area shape="rect" coords="130,275,283,290" href="#" onClick="javascript: changemap('regionview');" alt="Overview" title="Overview">
</map>
This is exactly how it is in my html files. I really appreciate any input, suggestions or comments you can give me. Thanks in advance! Hello, let me try to explain better what I'm trying to do. I'm a real newbie I don't know much javascript but I understand more or less the logic behind it... tell me if this solution should work and if you know how to do it please show me. I have this page. http://felixdeportu.com/5/ The images are inside a div#content div#photo. I need to make div#photo's width to match the total width measurement of all the images it contains. If you load the page and you don't touch the size, it will work fine... but that's not realistic. If I resize the page, which will happen often on this kind of page (I'm assuming), the whole thing goes haywire (try it, scroll to the last image and resize the page you'll see what I mean). What can I do? Is my idea the right solution? Am I not explaining this clearly enough? Let me know please, I'm desperate. I've been trying to get CSS to do this for me for 3 hours now. Nothing works... Hello all! I am fairly experienced in HTML but javascript I am useless with. My website can be found here; http://mgwalker.site90.com/index.html If you would be as kind as to load it in Chrome and in firefox, in firefox the changing image pops up on the top right of the screen. In Chrome it is centered in the div, as it should be... Please help I have no idea why this would happen! Hi, I was wondering why in mozilla firefox the same image menu has different way of transition on different sites. If you use firefox and go to this link and then hover over different pictures you will get to know how it moves http://www.alohatechsupport.net/exam...ge-menu-2.html after doing that go to this link http://bloghutsbeta.blogspot.com/201...ting-main.html and hover over images and see how it moves. In both cases the transition effect is same but in one it is slow (hanging) while in other it is smooth. I didn't presented the Markup as the both are identical but still if you feel like let me know in comments I will edit it to provide you with as much relevant data as possible and required. Code: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html;charset=utf-8" />
<title></title>
<style type="text/css">
#imgSlides {
display: none;
width: 500px;
height: 500px;
}
</style>
<script type="text/javascript">
var img = [];
img[0] = {src: "http://www.blogsdna.com/wp-content/uploads/2011/03/Google-labs.png",
cap: "",
url: "",
des: ""
};
img[1] = {src: "http://thenextweb.com/socialmedia/files/2010/07/youtube_logo.png",
cap: "",
url: "",
des: ""
};
img[2] = {src: "http://www.techlifeweb.com/facebook_logo.jpg",
cap: "",
url: "",
des: ""
};
img[3] = {src: "http://www.thetechherald.com/media/images/201115/Adobe_2.jpg",
cap: "",
url: "",
des: ""
};
for (var imgs=[], i=0; i<img.length; i++){
imgs[i] = new Image();
imgs[i].src = img[i].src;
}
var curPic = 0;
var fadeTimer;
var speed = 50;
var opacStep = 0.5;
var dirn = -1;
var curOpac = 10;
function fade(){
if(fadeTimer){clearInterval(fadeTimer);}
fadeTimer = setInterval(setOpacity,speed);
}
function setOpacity() {
curOpac += opacStep * dirn;
if (curOpac < 0){
swapImage();
curOpac = 0;
document.getElementById("autoPic").onclick = function(){
dirn = (dirn==1) ? 0 : 1 ;
}
dirn = 1;
fade();
return;
}
if (curOpac > 10){
curOpac = 10;
clearInterval(fadeTimer);
document.getElementById("autoPic").onclick = function(){
dirn = (dirn==-1) ? 0 : -1 ;
}
dirn = -1;
setTimeout(fade,1000);
return;
}
if (imgSlider.style.opacity=="string"){
imgSlider.style.opacity = curOpac/10;
}
else {
imgSlider.style.filter = 'alpha(opacity=' + curOpac*10 + ')';
imgSlider.style.MozOpacity = curOpac/10;
}
}
function swapImage(){
curPic = (++curPic > img.length-1) ? 0 : curPic;
imgSlider.src = img[curPic].src;
}
function prevImage(){
document.getElementById("prevImage").onclick = function fade(){
if(fadeTimer){clearInterval(fadeTimer);}
fadeTimer = setInterval(setOpacity,speed);
}
function setOpacity() {
curOpac += opacStep * dirn;
if (curOpac < 0){
swapImage();
curOpac = 0;
dirn = 1;
fade();
return;
}
if (curOpac > 10){
curOpac = 10;
clearInterval(fadeTimer);
dirn = -1;
document.getElementById("prevImage").onclick = function(){setTimeout(fade,1000);}
return;
}
if (imgSlider.style.opacity=="string"){
imgSlider.style.opacity = curOpac/10;
}
else {
imgSlider.style.filter = 'alpha(opacity=' + curOpac*10 + ')';
imgSlider.style.MozOpacity = curOpac/10;
}
}
function swapImage(){
curPic = (--curPic < 0)? img.length-1 : curPic;
imgSlider.src = img[curPic].src;
}
}
window.onload = function(){
imgSlider = document.getElementById('imgSlides');
imgSlider.src = img[curPic].src;
imgSlider.style.display = 'inline';
document.getElementById("autoPic").onclick = fade;
prevImage();
}
</script>
</head>
<body>
<img id="imgSlides" src="" alt="" />
<br />
<a id="prevImage" href="#">PREV</a>
<a id="autoPic" href="#" title="Play / Pause">AUTO</a>
</body>
</html>
I've taken reference of this code from this forum and altered it a bit to achieve the effect that an image will be changed once the prev button is pressed. Image by image fading works well in IE8 (press the button once, the image is changed once; when pressed again, it changes again; step by step) But in Firefox 4, it just auto fades into another image. I tried to debug it in the Firefox console but due to my lack of knowledge in JS, I could not find the root of the problem. Can anyone explain a bit why it works in IE but not in Firefox? Hello and thanks for the help. I'm no expert by any means, and I have no idea what the problem could be. Internet Explorer crops my images on my image fade, but Chrome and Safari view it just fine. the website is www.pisanchynproductions.com If you open it in IE and Chrome you can see Chrome shows image fadeshow fine, and IE crops the images. For the record, I don't want the images cropped. The problem must be in here somewhere. Code: var fadeimages=new Array()
//SET IMAGE PATHS. Extend or contract array as needed
fadeimages[0]=["images/SSPP1.JPG", "", ""] //plain image syntax
fadeimages[1]=["images/SSPP2.JPG", "", ""] //plain image syntax
fadeimages[2]=["images/SSPP3.JPG", "", ""] //plain image syntax
fadeimages[3]=["images/SSPP4.JPG", "", ""] //plain image syntax
fadeimages[4]=["images/SSPP5.JPG", "", ""] //plain image syntax
fadeimages[5]=["images/SSPP6.JPG", "", ""] //plain image syntax
fadeimages[6]=["images/SSPP7.JPG", "", ""] //plain image syntax
fadeimages[7]=["images/SSPP11.JPG", "", ""] //plain image syntax
fadeimages[8]=["images/SSPP12.JPG", "", ""] //plain image syntax
fadeimages[9]=["images/SSPP13.JPG", "", ""] //plain image syntax
fadeimages[10]=["images/SSPP14.JPG", "", ""] //plain image syntax
var fadebgcolor="white"
var fadearray=new Array() //array to cache fadeshow instances
var fadeclear=new Array() //array to cache corresponding clearinterval pointers
var dom=(document.getElementById) //modern dom browsers
var iebrowser=document.all
function fadeshow(theimages, fadewidth, fadeheight, borderwidth, delay, pause, displayorder){
this.pausecheck=pause
this.mouseovercheck=0
this.delay=delay
this.degree=10 //initial opacity degree (10%)
this.curimageindex=0
this.nextimageindex=1
fadearray[fadearray.length]=this
this.slideshowid=fadearray.length-1
this.canvasbase="canvas"+this.slideshowid
this.curcanvas=this.canvasbase+"_0"
if (typeof displayorder!="undefined")
theimages.sort(function() {return 0.5 - Math.random();})
this.theimages=theimages
this.imageborder=parseInt(borderwidth)
this.postimages=new Array() //preload images
for (var p=0;p<theimages.length;p++){
this.postimages[p]=new Image()
this.postimages[p].src=theimages[p][0]
}
var fadewidth=fadewidth+this.imageborder*2
var fadeheight=fadeheight+this.imageborder*2
if (iebrowser&&dom||dom) //if IE5+ or modern browsers (ie: Firefox)
document.write('<div id="master'+this.slideshowid+'" style="position:relative;width:'+fadewidth+'px;height:'+fadeheight+'px;overflow;"><div id="'+this.canvasbase+'_0" style="position:absolute;width:'+fadewidth+'px;height:'+fadeheight+'px;top:0;left:0;filter:progid:DXImageTransform.Microsoft.alpha(opacity=10);opacity:0.1;-moz-opacity:0.1;-khtml-opacity:0.1;background-color:'+fadebgcolor+'"></div><div id="'+this.canvasbase+'_1" style="position:absolute;width:'+fadewidth+'px;height:'+fadeheight+'px;top:0;left:0;filter:progid:DXImageTransform.Microsoft.alpha(opacity=10);opacity:0.1;-moz-opacity:0.1;-khtml-opacity:0.1;background-color:'+fadebgcolor+'"></div></div>')
else
document.write('<div><img name="defaultslide'+this.slideshowid+'" src="'+this.postimages[0].src+'"></div>')
if (iebrowser&&dom||dom) //if IE5+ or modern browsers such as Firefox
this.startit()
else{
this.curimageindex++
setInterval("fadearray["+this.slideshowid+"].rotateimage()", this.delay)
}
}
function fadepic(obj){
if (obj.degree<100){
obj.degree+=10
/*@cc_on @*/
/*@if(@_jscript_version >= 5)
try{
@end @*/
if (obj.tempobj.filters&&obj.tempobj.filters[0]){
if (typeof obj.tempobj.filters[0].opacity=="number") //if IE6+
obj.tempobj.filters[0].opacity=obj.degree
else //else if IE5.5-
obj.tempobj.style.filter="alpha(opacity="+obj.degree+")"
}
else if (obj.tempobj.style.MozOpacity)
obj.tempobj.style.MozOpacity=obj.degree/101
else if (obj.tempobj.style.KhtmlOpacity)
obj.tempobj.style.KhtmlOpacity=obj.degree/100
else if (obj.tempobj.style.opacity&&!obj.tempobj.filters)
obj.tempobj.style.opacity=obj.degree/101
/*@cc_on @*/
/*@if(@_jscript_version >= 5)
}
catch(e){}
@end @*/
}
else{
clearInterval(fadeclear[obj.slideshowid])
obj.nextcanvas=(obj.curcanvas==obj.canvasbase+"_0")? obj.canvasbase+"_0" : obj.canvasbase+"_1"
obj.tempobj=iebrowser? iebrowser[obj.nextcanvas] : document.getElementById(obj.nextcanvas)
obj.populateslide(obj.tempobj, obj.nextimageindex)
obj.nextimageindex=(obj.nextimageindex<obj.postimages.length-1)? obj.nextimageindex+1 : 0
setTimeout("fadearray["+obj.slideshowid+"].rotateimage()", obj.delay)
}
}
fadeshow.prototype.populateslide=function(picobj, picindex){
var slideHTML=""
if (this.theimages[picindex][1]!="gallery") //if associated link exists for image
slideHTML='<a href="'+this.theimages[picindex][1]+'" rel="nofollow" target="'+this.theimages[picindex][2]+'">'
slideHTML+='<img src="'+this.postimages[picindex].src+'" border="'+this.imageborder+'px">'
if (this.theimages[picindex][1]!="gallery") //if associated link exists for image
slideHTML+='</a>'
picobj.innerHTML=slideHTML
}
fadeshow.prototype.rotateimage=function(){
if (this.pausecheck==1) //if pause onMouseover enabled, cache object
var cacheobj=this
if (this.mouseovercheck==1)
setTimeout(function(){cacheobj.rotateimage()}, 100)
else if (iebrowser&&dom||dom){
this.resetit()
var crossobj=this.tempobj=iebrowser? iebrowser[this.curcanvas] : document.getElementById(this.curcanvas)
crossobj.style.zIndex++
if(document.getElementById('content'))
document.getElementById('content').style.zIndex++
fadeclear[this.slideshowid]=setInterval("fadepic(fadearray["+this.slideshowid+"])",50)
this.curcanvas=(this.curcanvas==this.canvasbase+"_0")? this.canvasbase+"_1" : this.canvasbase+"_0"
}
else{
var ns4imgobj=document.images['defaultslide'+this.slideshowid]
ns4imgobj.src=this.postimages[this.curimageindex].src
}
this.curimageindex=(this.curimageindex<this.postimages.length-1)? this.curimageindex+1 : 0
}
fadeshow.prototype.resetit=function(){
this.degree=10
var crossobj=iebrowser? iebrowser[this.curcanvas] : document.getElementById(this.curcanvas)
/*@cc_on @*/
/*@if(@_jscript_version >= 5)
try{
@end @*/
if (crossobj.filters&&crossobj.filters[0]){
if (typeof crossobj.filters[0].opacity=="number") //if IE6+
crossobj.filters(0).opacity=this.degree
else //else if IE5.5-
crossobj.style.filter="alpha(opacity="+this.degree+")"
}
else if (crossobj.style.MozOpacity)
crossobj.style.MozOpacity=this.degree/101
else if (crossobj.style.KhtmlOpacity)
crossobj.style.KhtmlOpacity=this.degree/100
else if (crossobj.style.opacity&&!crossobj.filters)
crossobj.style.opacity=this.degree/101
/*@cc_on @*/
/*@if(@_jscript_version >= 5)
}catch(e){}
@end @*/
}
fadeshow.prototype.startit=function(){
var crossobj=iebrowser? iebrowser[this.curcanvas] : document.getElementById(this.curcanvas)
this.populateslide(crossobj, this.curimageindex)
if (this.pausecheck==1){ //IF SLIDESHOW SHOULD PAUSE ONMOUSEOVER
var cacheobj=this
var crossobjcontainer=iebrowser? iebrowser["master"+this.slideshowid] : document.getElementById("master"+this.slideshowid)
crossobjcontainer.onmouseover=function(){cacheobj.mouseovercheck=1}
crossobjcontainer.onmouseout=function(){cacheobj.mouseovercheck=0}
}
this.rotateimage()
}
I wish i knew more so I could realized how dumb this question was. I have this code: Code: <script type="text/javascript" src="http://s7.addthis.com/js/250/addthis_widget.js#username=xa-4c7b22470e521876"></script> I want this JavaScript code above to be executed when all My page finished loading (maybe by using JavaScript onload) So how can I do that? Am I saying the onload event wrong or something? PHP Code: <input type="button" value="Mouse" onload="popup_show('popup', 'popup_drag', 'popup_exit', 'mouse', -10, -10);" /> Other events like onmouseover and onClick work Hi all I would like the img src to be populated after page load I'm not sure this is doing what I would like it to do. I have done this. (tag shortened for post) Code: <img src="" id="testImg2" onload="(this.src='images/USA.jpg')"/> Is this populating the img src after page load or when the img tag is loaded? LT Hi, I'm looking to create a box that shows to IE6 users or lower, to tell them that my site does not render properly in the IE6 browser and that they should therefore upgrade to a newer version or alternative browser. Basically I would put whatever the code to show the box into these tags: Code: <!--[if lte IE 6]> INSERT HERE <![endif]--> to enable it to only appear to IE6 or below users. Preferably when this box appeared, it would be nice if it could fade the page behind it. Does anyone have a script for this or know of a tutorial I could use? The box would also need buttons at the bottom that said "Ok, upgrade me" (this would load another window with links to alternative browsers) or "No thanks" (or "Close") Thanks in advance. Hi there, I'm trying to port a pretty old javascript to a brand new Joomla website. I didn't create the original site that the javascript comes from, and haven't been able to locate it in my Google searches either. I'm assuming it's quite old. That being said, it seems to *want* to load up correctly. Since this is in an individual Joomla article, I didn't want to set the template to always try and load this script from <body>, so I'd found what I thought might be a workaround by calling it from another javascript within the article. It *looks* like it starts to want to call the required images, but then they disappear. I am not a javascript programmer in any way. I really don't do more than copy & paste various scripts of that nature. So I'm a little flummoxed here. Any help you can afford will be appreciated. Here is the development page: Mixes Thanks in advance. ~Laura |
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