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how to show alternate image if source image is not found? (onerror working in IE but not in mozilla)
...myImage' /></td>
</tr></table>
<script type='text/javascript'>
document.getElementById('myImage').src = "newImage.png";
document.getElementById('myImage').onload = function() {
alert("done");
}
document.getElementById('myImage').onerror = function() {
...
How to log out user from web site using BASIC authentication?
...y bobince ...
With Ajax you can have your 'Logout' link/button wired to a Javascript function. Have this function send the XMLHttpRequest with a bad username and password. This should get back a 401. Then set document.location back to the pre-login page. This way, the user will never see the extra ...
What is a good regular expression to match a URL? [duplicate]
... for a version which is less restrictive http://regexr.com/3e6m0.
Example JavaScript implementation:
var expression = /[-a-zA-Z0-9@:%._\+~#=]{1,256}\.[a-zA-Z0-9()]{1,6}\b([-a-zA-Z0-9()@:%_\+.~#?&//=]*)?/gi;
var regex = new RegExp(expression);
var t = 'www.google.com';
if (t.match(rege...
JavaScript get clipboard data on paste event (Cross browser)
...HTML
<div id='editableDiv' contenteditable='true'>Paste</div>
JavaScript
function handlePaste (e) {
var clipboardData, pastedData;
// Stop data actually being pasted into div
e.stopPropagation();
e.preventDefault();
// Get pasted data via clipboard API
clipboar...
Prevent any form of page refresh using jQuery/Javascript
...lemented via window.onbeforeunload.
For example:
<script type="text/javascript">
window.onbeforeunload = function() {
return "Dude, are you sure you want to leave? Think of the kittens!";
}
</script>
The user will be prompted with the message, and given an option to...
How to check if element has any children in Javascript?
Simple question, I have an element which I am grabbing via .getElementById () . How do I check if it has any children?
8 A...
Trigger a button click with JavaScript on the Enter key in a text box
I have one text input and one button (see below). How can I use JavaScript to trigger the button's click event when the Enter key is pressed inside the text box?
...
Do HTML5 custom data attributes “work” in IE 6?
...o make the missing collections.” — Yeah, that’s the nice thing about JavaScript as compared to CSS: because it’s a programming language, you can fix compatibility issues yourself.
– Paul D. Waite
Mar 10 '10 at 22:22
...
How to get screen width without (minus) scrollbar?
...h = $("body").prop("scrollWidth"); // El. width minus scrollbar width
in JavaScript:
var actualInnerWidth = document.body.clientWidth; // El. width minus scrollbar width
var actualInnerWidth = document.body.scrollWidth; // El. width minus scrollbar width
P.S: Note that to use scrollWidt...
jQuery ajax error function
...
In JavaScript, say you have a method - function myMethod (err) { alert(err); } and then call it like myMethod ("something is wrong", 500, some_object) - This will work without any issue. As per your statement, this would only wo...