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JavaScript - Image Resizing Help
I'm coding my new website, and to save bandwidth, i'm letting users link to their own avatars, so I want to resize any images over 150px wide so it doesn't mess up my layout - simple, right? Well, you'd think so, but I don't know any javascript, so i've scrapped this together with what little I know:
Code: var obj=document.getElementsByTagName("img");
for(var i=0;i<obj.length;i++){
if(obj[i].className == "avatar") {
if(getElementWidth(obj[i]) > 150) {
obj[i].style.width = 150;
}
}
}
Can anyone help me fix that or code me a new one please? I need it to check all elements (well, images - but only images will be using it) for a width of over 150px, and, if it is - change it to 150px I know it's pretty simple but it's hurting my head! :P Thanks in advance -Alux Similar TutorialsIm using the below javascript to resize images on a forum I have created but I want it to ignore 2 certain images that are part of my header. Heres the code Code: <script>
window.onload = resizeimg;
function resizeimg()
{
if (document.getElementsByTagName)
{
for (i=0; i<document.getElementsByTagName('img').length; i++)
{
im = document.getElementsByTagName('img')[i];
if (im.width > 600)
{
im.style.width = '600px';
eval("pop" + String(i) + " = new Function(\"pop = window.open('" + im.src + "','phpbbegypt ','fullscale','width=400,height=400,scrollbars=1,resizable=1'); pop.focus();\")");
eval("im.onclick = pop" + String(i) + ";");
if (document.all) im.style.cursor = 'hand';
if (!document.all) im.style.cursor = 'pointer';
im.title = 'Click Here To See Image Full Size ';
}
}
}
}
</script>
But I want it to ignore 2 images..and not resize them. head1.jpg head2.jpg Any help would be gratefully recieved !! Cheers !! Hi there, I just recently took over a site that has some java code on it I'm unfamiliar with. If you go to smalltowngossipmusic.com, you'll see what this code does. Go to the pages "Sounds" or "Travel", and once your mouse leaves the main image at the top of the page, you should see those pages shrink. This is some code that was implemented on the site (which is wordpress) in the header.php template. Here is the code: Code: <script type="text/javascript">
/* <![CDATA[ */
var $ = jQuery.noConflict();
$(document).ready(function () {
headerImage();
});
var speed = 500;
var origMT = 0, origHeight = '120px';
function expandHeader(obj) {
$('.headerImage').animate({height: '436px'},speed);
$('.headerImage img').animate({'margin-top': '-2px'},speed);
}
function shrinkHeader(obj) {
$('.headerImage').stop().animate({'height': origHeight},speed);
$('.headerImage img').stop().animate({'margin-top': origMT},speed);
}
function headerImage() {
origMT = $('.headerImage img').css('margin-top');
origHeight = $('.headerImage').css('height');
$('.headerImage img').css('margin-top','0');
$('.headerImage').css('height','436px');
setTimeout(shrinkHeader,speed*2);
$('.headerImage').hover(expandHeader, shrinkHeader);
}
/* ]]> */
</script>
If you look at the page source for each page, you'll see that there is nothing out of whack (at least, not that I can find). However, for some reason, this shrinking script only works on the two pages I mentioned - on every other page, it either doesn't work at all, or it only works about half-way. I have made sure the page.php and header.php templates both have accurate picture information in them, and can not find anything wrong anywhere. Is there any advice anyone here can give me on how to fix this? I've been doing html and css for awhile, but am relatively new to javascript and php, so am a bit out of my element on this. I'm willing to post any more code, snippets, whatever needed, just let me know what you need if you think you can help. Thanks, Brandon I am trying to dynamically resize an image. Here is my code: Code: <img border="0" src="images/right.gif" width="16" height="100" name="right">
<SCRIPT Language=Javascript>
<!--
function ChangeImgSize(){
right.height = 3000;
}
ChangeImgSize()
//-->
</SCRIPT>
This is on an asp page, and the <script> tag is the last thing on the page before </body> The image does not get resized. I've been testing the page on current browsers (IE 8, Firefox, Chrome). I'm certain I'm doing something newbish, I don't really know Javascript all that well. Thanks in advance, Skip Hello all; I am trying to load four images into a canvas using an array. The images load fine and all, however they are resizing weird. I haven't specified what I want them to resize to, as the actual image are already the sizes I want. However when loaded into the canvas they are sizing differently then their actual sizes. Even when I specify their actual size in the code, they still resize weirdly. Here is my code: Code: <body>
<canvas id="worldscreen" class="map"></canvas><br />
<script type="text/javascript">
function loadImages(arrow, call) {
var images = {};
var loaded = 0;
var num = 0;
for (var src in arrow) {
num++;
}
for (var src in arrow) {
images[src] = new Image();
images[src].onload = function(){
if (++loaded >= num) {
call(images);
}
};
images[src].src = arrow[src];
}
}
window.onload = function(images) {
var canvas = document.getElementById("worldscreen").getContext("2d");
var arrow = {
top: "sideQUEST/images/arrow-top.png",
right: "sideQUEST/images/arrow-right.png",
bottom: "sideQUEST/images/arrow-bottom.png",
left: "sideQUEST/images/arrow-left.png",
};
loadImages(arrow, function(images) {
canvas.drawImage(images.top, 100, 18);
canvas.drawImage(images.right, 215, 36);
canvas.drawImage(images.bottom, 100, 115);
canvas.drawImage(images.left, 36, 36);
});
};
</script>
</body>
You can see the code in action he http://myrmidon16.x10.mx/test.php. This is very frustrating and if you have any suggestions it would be greatly appreciated. Thank you. Hi CodingForum! For my website, I have a working script that changes the background image of my website every time it is reloaded. However, I would also like the image to dynamically resize as the user resizes the browser window. here is a code snippet: Code: <head>
<script type="text/JavaScript">
/*<![CDATA[*/var el="bgImg";var bgimg=new Array("../00home/06home.jpg","../00home/07home.jpg");var random=Math.round((bgimg.length-1)*Math.random());var cssStr="#"+el+" { background: url("+bgimg[random]+") no-repeat center } ";var style=document.createElement("style");style.setAttribute("type","text/css");if(style.styleSheet){style.styleSheet.cssText=cssStr;}else{var cssText=document.createTextNode(cssStr);style.appendChild(cssText);}document.getElementsByTagName("head")[0].appendChild(style);/*]]>*/
</script>
<style type="text/css">
.rotatebg {
z-index:0;
position:fixed;
top:0; left:0;
width:1378px; height:1178px;
background-repeat: no-repeat;
background-position:inherit;
overflow:hidden;
}
</style>
</head
<body>
<div class="rotatebg" id="bgImg" style="width:100%; height:100%" ></div>
</body>
Does anyone know how I can augment/alter this coded setup to enable the randomly loaded background image to proportionately fill the browser window? I am making my first mobile website and need to put wallpapers in it. I cant make every picture in all resolution for each mobile. I found this website which can auto- resize image when user select their mobile brand...i have tried to learn it from page source but failed. Can any one help me please, m newbie xD here is the website: http://cartoonized.net/cellphone-wallpaper.ph Hey all- trying to get this bit of js to work properly. I'm close, but the issue is that if the window is opened at a size that is SMALLER than the original image, it wont scale down to the smaller size until i first make the window bigger, THEN size it down smaller. The image itself is big (its fashion photography so it needs to be high res) and the js sets the minimum width at 1070. Id like to have the image as big as possible and then on page load automatically drop down to as low as 1070px if the window size is small. Here is the js: Code: jQuery.noConflict();
function screenSize() {
var w, h;
w = (
window.innerWidth ?
window.innerWidth :
(
document.documentElement.clientWidth ?
document.documentElement.clientWidth :
document.body.offsetWidth));
h = (
window.innerHeight ?
window.innerHeight :
(
document.documentElement.clientHeight ?
document.documentElement.clientHeight :
document.body.offsetHeight));
return {w:w, h:h};
}
jQuery(document).ready(function ()
{
if( screenSize().w > 1070 )
{
document.getElementById('home-page-bg-image').style.width = screenSize().w + 'px';
}
})
jQuery(window).resize(function()
{
if( screenSize().w > 1070 )
{
document.getElementById('home-page-bg-image').style.width = screenSize().w + 'px';
}
});
let me know if you have any ideas Ok, told you I'd be asking lots of questions ... Code: <div id="resizetest" style="width:200px;height:200px;border:2px solid blue">
<div style="background:#000033">
<a href="#" style="float:right;background:#ffffff" onclick='document.getElementById("resizetest").height="50";'>_</a>
</div>
This is a resize test
</div>
Why doesn't this resize? I've looked at examples, and I don't see what's wrong. Hi, Ive written some code to try and resize a page dependant on the content oof an iframe. Code is as follows: Code: window.onload=sizeAdj();
function sizeAdj() {
var elFrame = document.getElementById('theFrame');
var elTable = document.getElementById('tableGrab');
var elDivMain = document.getElementById('main');
var elDivWrapper = document.getElementById('wrapper');
var the_height = elFrame.contentWindow.document.body;
elFrame.height = the_height;
elTable.height = the_height + 90;
elDivMain.height = the_height + 90;
elDivWrapper.height = the_height + 465;
}
I originally thought that I would just be able to resize the iframe and the other elements would follow suit but as you can see Ive tried to resize the other encasing elements also. The code resizes partially in chrome but only to a certain point and not to the full height of the doc content. Help greatly appreciated - full source content attached. Rugby Glass.zip Thanks Sol Hi folks! Very, very new to Javascript and I'm having a problem. What I'm trying to do is create a page that uses an iframe to show the fullsized image, while using thumbnails at the bottom. I need the iframe to resize depending on the size of the image since some are landscape and others are portrait oriented. I found a script online that did it for the height of the picture so I tried to modify it to do both the width and the height and haven't had much luck. Here's the code, and I apologize in advance for my noob coding. Code: <html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<title>Halloween 2009</title>
<script language="JavaScript">
<!--
function calcWidth()
{
//find the width of the internal page
var the_width=
document.getElementById('preview').contentWindow.
document.body.scrollWidth;
//change the width of the iframe
document.getElementById('preview').width=
the_width;
}
function calcHeight()
{
//find the height of the internal page
var the_height=
document.getElementById('preview').contentWindow.
document.body.scrollHeight;
//change the height of the iframe
document.getElementById('preview').height=
the_height;
}
//-->
</script>
<style type="text/css">
body {background: url(background/bg3.gif); text-align:center}
img {height: 5em; width:5em; display: inline; border: none}
</style>
</head>
<body>
<div style="height: 448px">
<iframe src="Halloween '09 021.jpg" name="preview" id="preview" onLoad="calcWidth();calcHeight();" marginheight="0" marginwidth="0" scrolling="no">
An iframe capable browser is required to view this web site.
</iframe>
</div>
<div id="thumbnails" style="padding-top: 1.5em; width: 40em; text-align: center">
<a href="Ariana.JPG" target="preview"><img src="Ariana.JPG" alt="" /></a>
<a href="Halloween '09 002.jpg" target="preview"><img src="Halloween '09 002.jpg" alt="" /></a>
<a href="Ayesha.jpg" target="preview"><img src="Ayesha.jpg" alt="" /></a>
ETC...
</div>
</body>
</html>
Hi, Am making a user registration page and i want it to be smaller then my other pages and it should open in a new window, something like a popup window. How can i do this? Thanks Hello i would need a 1x1 pixel image for my flagcounter,ive been trying for months [IMG*]http://2.s07.flagcounter.com/count/DymW/bg=ffffff/txt=ffffff/border=ffffff/columns=1/maxflags=1/viewers=3/labels=0/[/IMG*] (the stars for the image not to appear) helllp
hi, deleted old thread, since that didn't answer problem. posting code because of all the dynamic variables would be confusing. so, if anyone can help, here's some link instructions: 1) go to http://www.vehicle411.com 2) in the "vehicle classifieds" panel just click "search" which will bring up 68 vehicles. 3) click on link for any vehicle, which will display vehicle information in a popup window. up to this point everything is fine. BUT when you click the popup's "connect" button to link to a dealership the new window is undersized (actually, if it replaced the original vehicle411 window that would be fine). have tried a lot of different combinations, including the <a href="javascript:photowindow('dealerurl')"> suggested in the other post gives weird result showing javascript:photowindow('dealerurl') in the address window instead of the actual url--meaning it doesn't call the photowindow function. P.S. if you look at the source--all the server values are passed correctly and don't interfere with the code. right now, I've got a simple <a href="dealerurl"> instead of the JS method. Also, have hard coded values to make sure dynamic stuff was working-- and they work. what's really annoying is that I've used just about the same JS code to create that vehicle popups. P.P.S. went back and changed code to using <a href="#" etc. which doesn't work either. but have a direct url for anyone reading this (when clicking on "connect" button it's just creating a copy of itself!!! http://www.vehicle411.com/_system/di...9765108&cid=1# I have this slideshow, that twirls around but i'm trying to center it within the browser so the middle picture stays in the middle and the side pictures have about a 10px padding from the browsers border. The weird thing is that it adjusts itself when you first open the link, but if you have it open and resize your browser, it won't adjust to the width. Can't figure what i'm doing wrong. I already posted in the HTML/CSS forum but nobody could help. Thanks guys. Check it out he jonathaneiger.com I have two vertical frames. The left frame has an image that scales to 100% of the window's height. I am trying to make the page automatically resize the width of that left frame so that it exactly fits the scaled image's width in order to always give the right frame as much space as possible, but I can't seem to get it to work. Can anyone help me out? Here's the code for my frameset: Code: <html> <frameset id="MyFrameset" cols="25%,*" frameborder="no" border="0"> <frame noresize="noresize" src="Leftframe.html" name="LeftFrame"> <frame noresize="noresize" src="Rightframe.html" name="RightFrame"> </frameset> </html> And here's the code for my left frame: Code: <html>
<body style="overflow:hidden; margin:0; padding:0"
onload="parent.document.getElementById('MyFrameset').setAttribute('cols', 'document.body.clientWidth,*', 0);">
<img src="image.JPG" style="border:none;" height="100%" alt="image"/>
</body>
</html>
Oh yeah, the reason why I need to do this is so if someone is viewing the page on a widescreen monitor, the left frame won't eat up more space than necessary. Good Day Everyone, I need some help resizing an iframe to fit it's content. Basically, I have 10 spreadsheet pages saved as htm files. I am creating a page that enables me to view each of these htm files. I need the iframe to be resized for each htm file. This is my code: Code: <html>
<head>
<script language="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;
}
}
function autoResize(id)
{
var winW = 0, winH = 0 ;
if (document.body && document.body.offsetWidth) {
winW = document.body.offsetWidth - 235;
winH = document.getElementById('page').contentWindow.document.body.scrollHeight;
}
document.getElementById(id).height=(winH) + "px"; document.getElementById(id).width=(winW) + "px";
}
//-->
</script>
<style type="text/css">
.yssOver{background-color:#ffffff;}
.yssOut{ background-color:#E6EFFF;}
#content {
position:absolute;
left:210px;
top:40px;
}
html {
overflow:off;
}
img {
display:block;
vertical-align:text-top;}
h1{
color: #000000;
font-family:"Arial",Times,sans-serif;
font-weight:bold;
font-size:12px;
margin-bottom:0px;
}
#document{
position:absolute;
top:0px;
left:0px;
}
#menu{
margin: 0 0 0 0;
padding-left:0px;
border: 0 -10 0 0;
}
img.arrow {
margin: 4 0 0 0;
}
table.menu td { border: 1px solid; border-color:#7D91D0; }
table.div td { border: 0px solid; border-color:#7D91D0; }
a:link {color: #000000; font-family:"Arial",Times,sans-serif; font-size:12px; text-decoration: none;}
a:active {color: #000000; font-family:"Arial",Times,sans-serif; font-weight:bold; font-size:12px;}
a:visited {color: #000000; font-family:"Arial",Times,sans-serif; text-decoration: none; font-size:12px;}
a:hover {color: #000000; font-family:"Arial",Times,sans-serif; font-size:12px;}
</style>
</head>
<body onLoad = "window.frames['page'].location = 'home.png'" >
<table id=document border=0 cellpadding=0 cellspacing=0>
<tr><td>
<img src=halifax_logo.png></img>
</td><td width=100%>
<img src=headerback.png width=100% height=80></img>
</td></tr>
<tr><td>
<table width=95% class=menu border=1 id=menu border=0 cellpadding=0 cellspacing=5 background=menuback.png>
<tr><td>
</td></tr>
<tr><td class=menutd background=tdback.png>
<a href="cofunds designations.htm" target="page"> Cofunds Designations</a>
</td></tr>
<tr><td class=menutd background=tdback.png>
<a href="Commission Codes Most Used.htm" target="page" " height=516 width=974 onmousedown="if(document.getElementById('div2').style.display == 'none'){ document.getElementById('div2').style.display = 'block'; }else{ document.getElementById('div2').style.display = 'none'; }"> Commission Codes</a>
<div id="div2" style="display: none;">
<table class=div border=0 cellpadding=0 cellspacing=0 style=background-color:#E6EFFF; border: 1px solid; border-color:#7D91D0; width=100%>
<tr><td>
<img class=arrow src=side_grey_arrow.png></img>
</td><td class="yssOut" onmouseover="className='yssOver';" onmouseout="className='yssOut';">
<a href="Commission Codes Most Used.htm" target="page">Most Used</a>
</td></tr>
<tr><td valign=top>
<img class=arrow src=side_grey_arrow.png></img>
</td><td class="yssOut" onmouseover="className='yssOver';" onmouseout="className='yssOut';">
<a href="Commission Codes.htm" target="page">All</a>
</td></tr>
</table>
</div>
</td></tr>
<tr><td class=menutd background=tdback.png>
<a href="corporate accounts1.htm" target="page"> Corporate Accounts</a>
<div id="div3" style="display: none;">
<table class=div border=0 cellpadding=0 cellspacing=0 style=background-color:#E6EFFF; border: 1px solid; border-color:#7D91D0; width=100%>
<tr><td>
<img class=arrow src=side_grey_arrow.png></img>
</td><td class="yssOut" onmouseover="className='yssOver';" onmouseout="className='yssOut';">
<a href="research.png" target="page">Research Centre</a>
</td></tr>
<tr><td valign=top>
<img class=arrow src=side_grey_arrow.png></img>
</td><td class="yssOut" onmouseover="className='yssOver';" onmouseout="className='yssOut';">
<a href="reports.png" target="page">Company Reports</a>
</td></tr>
</table>
</div>
<tr><td class=menutd background=tdback.png>
<a href="dealers.htm" target="page"> Dealers</a>
</td></tr>
<tr><td class=menutd background=tdback.png>
<a href="halifax funds.htm" target="page"> Halifax Fund Managers</a>
</td></tr>
<tr><td class=menutd background=tdback.png>
<a href="other fund managers.htm" target="page"> Other Fund Managers</a>
</td></tr>
<tr><td class=menutd background=tdback.png>
<a href="international codes.htm" target="page"> International Codes</a>
</td></tr>
<tr><td class=menutd background=tdback.png>
<a href="market makers1.htm" target="page"> Market Makers</a>
</td></tr>
<tr><td height=750>
</table>
</td><td>
<div id=content>
<IFRAME name=page src="cofunds designations halifax.htm" onLoad="autoResize('page');" frameborder=0 overflow=no marginwidth=0 marginheight=0></iframe>
</div>
</td></tr>
</table>
</body>
</html>
This seems to work but it has a few issues, It does not resize properly for every link, only some of them. Can somebody please have a look & tell me where I am going wrong, or provide me with some better code, mine is a bit shoddy! Thanks Harry I have a master page that has an IFRAME, which we use for resizing. Locally, when we are using our web application within our network, the resizing works perfectly for both Firefox and IE. However, when I access the web application from outside the network the resizing doesn't always work. Most of the time, the offsetheight for the div(container is the name) is not correct, thus I don't see all the results that I need to see in the IFRAME Here is the resizing code below. function resizeTheFrame() { var iframe = document.getElementById('innerFrame'); var containerHeight = document.getElementById('container').offsetHeight; var DefaultPageHeight = 400; if (containerHeight > DefaultPageHeight) { var heightdiff = 100; } else { var heightdiff = DefaultPageHeight - containerHeight; } containerHeight = containerHeight + heightdiff; var counter = parent.top.window.location.href.lastIndexOf("/"); var urlStr = parent.top.window.location.href.substring(0, counter + 1); iframe.src = urlStr + "resizer.htm?height=" + containerHeight; } can any one say me how to resize a div by mouse dragging in javascript........ ..first of all is it possible or not?? and if so , what should i do...... |
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