How can you make a vote-up-down button like in Stackoverflow?

Problems

1. how to make an Ajax buttons (upward and downward arrows) such that the number can increase or decrease
   


2. how to save the action af an user to an variable NumberOfVotesOfQuestionID
   

Chrome: Disable same origin policy

Is there a way to disable the same origin policy on Google's Chrome browser? This is strictly for development, not production, use.

Do you know of a bleeding-edge HTML5 leveraging, legacy-ignoring JavaScript framework?

What's the best framework (sort of jquery, extjs, etc like) to use if I'd like to intensively use all the freshest technologies of the HTML5 stack provided by modern browsers (Firefox 7, Safari 5, Chrome 14) and have absolutely no need to support any legacy browsers (incl. no need in IE support at all and no need in Firefox or Chrome prior to the latest stable releases)? I'd like to get all the newest available goodness without having (even abstracted by a library layer) a line of code meant just fore legacy compatibility or keeping any legacy-induced things in mind.

Getting the ID of the element that fired an event using JQuery

Is there any way to get the ID of the element that fires an event?

Which keycode for escape key with jQuery

I have two functions. When enter is pressed the functions runs correctly but when escape is pressed it doesn't. What's the correct number for the escape key?

jQuery lose focus event

I'm trying to show up a container if a input field gets the focus and - that's the actual problem - hide the container if focus is lost. Is there an opposite event for jQuery's focus?

Online Tool to Unminify / Decompress JavaScript

Are there any scripts and/or online tools that can reverse the effects of minification similar to how Tidy can clean up horrific HTML?

Are there legitimate uses for JavaScript"s "with' statement?

Alan Storm's comments in response to my answer regarding the with statement got me thinking. I've seldom found a reason to use this particular language feature, and had never given much thought to how it might cause trouble. Now, I'm curious as to how I might make effective use of with , while avoiding its pitfalls...

Do browsers parse javascript on every page load?

Do browsers (IE and Firefox) parse linked javascript files every time the page refreshes?

Formatting a date in JavaScript

I noticed that JavaScript's new Date() function is very smart in accepting dates in several formats.

Changing the image source using jQuery

My DOM looks like this:

<div id="d1">

   <div class="c1">

            <a href="#"><img src="img1_on.gif"></a>

            <a href="#"><img src="img2_on.gif"></a>

   </div>

</div>

Is javascript guaranteed to be single-threaded?

Javascript is known to be single-threaded in all modern browser implementations, but is that specified in any standard or is it just by tradition? Is it totally safe to assume that javascript is always single-threaded?

How to find event listeners on a DOM node?

I have a page where some event listeners are attached to input boxes and select boxes. Is there a way to find out which event listeners are observing a particular DOM node and for what event?

How can I obfuscate JavaScript?

I want to make a JavaScript application that's not open source, and thus have two questions:

parseInt(null, 24) === 23… wait, what?

Alright, so I was messing around with parseInt to see how it handles values not yet initialized and I stumbled upon this gem. The below happens for any radix 24 or above.

jQuery Set Cursor Position in Text Area

How do you set the cursor position in a text field using jQuery? I've got a text field with content, and I want the users cursor to be positioned at a certain offset when they focus on the field. The code should look kind of like this:

multiple facebook like buttons (fb:like) are not working: unliking themself

EDIT: LAST UPDATE :

So, we've tested some more. I used the facebook developers 'lintner' http://developers.facebook.com/tools/lint/ . There are no errors found on either one of my pages PLUS the like button on the lint-page is working perfectly. If I switch back to my own website, I can clearly see my like has been counted.

How to "enable' HTML5 elements in IE that were inserted by AJAX call?

See the solution at the bottom of the question.

IE does not work good with unknown elements (ie. HTML5 elements), one cannot style them , or access most of their props. Their are numerous work arounds for this for example: http://remysharp.com/2009/01/07/html5-enabling-script/

In 2011 is it truly necessary to still degrade js?

Serious question.

I tried most of the famous websites (including facebook) and I can say that tons of functionality doesn't degrade at all with js disabled. I've been always told that js should degrade gracefully, but does this still applies in these day and age?

How can I write an iPhone app entirely in JavaScript without making it just a web app?

I don't want to take the time to learn Obj-C. I've spent 7+ years doing web application programming. Shouldn't there be a way to use the WebView and just write the whole app in javascript, pulling the files right from the resources of the project?