javascript

Mapping a drop-down menu over an image

I have a menu bar that is rotated slightly. Here are two buttons as an example: As a result, I can't use regular HTML to handle this. I need to use a <map> to put hyperlinks over the menu parts. (Or am I missing a killer CSS feature I don't know about?) I want to map drop-down menus to these buttons. This looks like a nice way to imp...

CSS Background-Images Loading after HTML Images (Involves Javascript)

I threw together a quick little microsite that you can see at http://monterraauction.com. If you don't have a super-fast connection (and nothing's cached), the very last items to load are the background-images that are used for CSS image-text replacement (primarily, that h1#head at the top, with a 7kb background image). Nothing debilitat...

Javascript working in Firefox but not in IE -

I have this authnav='<li class="last"><a href="auth/login">login</a></li>'+ '<li><a href="auth/create_account">create account</a></li>'; It works fine in Firefox, but Internet Explorer gives me an "Error: Object doesn't support this property or method" I'm mystified - what could be going on here? There's a comment line above the o...

Point data structure for a sketching application

I am currently developing a little sketching application based on HTML5 Canvas element. There is one particular problem I haven't yet managed to find a proper solution for. The idea is that the user will be able to manipulate existing stroke data (points) quite freely. This includes pushing point data around (ie. magnet tool) and manipu...

Is it possible to use javascript to change the meta-tags of the page?

if I put a div in the head and display:none, than use javascript to display it, will this work? Edit: I have stuff loaded in ajax. And as my ajax changes the "main" portion of the site, I want to change the meta-tags as well. ...

Problem with document.getElementById

Hi, This works : alert(document.getElementById("Container").nodeName); But this doesnt : var CurParent = document.getElementById("Container"); alert(CurParent.nodeName); I am using IE7. Why ? ...

JQuery URL Validator

All, I am trying to use JQuery's URL Validator plugin. http://docs.jquery.com/Plugins/Validation/Methods/url I have a text box that has a URL. I want to write a function which takes the textbox value, uses the jquery's validator plugin to validate urls and returns true or false. Something like Ex: function validateURL(textval) { /...

Website. VoteUp or VoteDown Videos. How to restrict users voting multiple times?

Im working on a website (html,css,javascript, ajax, php,mysql), and I want to restrict the number of times a particular user votes for a particular video. Its similar to the YouTube system where you can voteUp or voteDown a particular video. Each vote involves adding a row to the video.votes table, which logs the time, vote direction(u...

How do I blur everything by focusing on the document?

using Jquery/javascript Is it: $(document).focus()? ...

How do I pass the value (not the reference) of a JS variable to a function?

Here is a simplified version of something I'm trying to run: for (var i = 0; i < results.length; i++) { marker = results[i]; google.maps.event.addListener(marker, 'click', function() { change_selection(i); }); } but I'm finding that every listener uses the value of results.length (the value when the for loop terminates)....

Is window.location.href = 'some_page.html' followed by search engines?

Currently our website uses links to allow the user to change their locale. The problem with this is that you get a lot of random outlinks from each page on the site to... the same page, in other languages. When a search engine traverses this, it gets an excessively complex view of the site. We were going to change it to a form post to...

How can I detect if the browser has encountered a JavaScript error ... in JavaScript?

For automated testing reasons I want to detect if the browser has encountered JavaScript errors for a page. The type of things that would cause the red numbers in the bottom right in Firebug or yellow warning icon in the Internet Explorer status bar. These JS errors could come from any one of a large numbers of scripts. How in JavaScrip...

jQuery error callback on ajax call if server is down

I am using jQuery and I am making AJAX request from the many methods available to me. I am testing error callback condition and so far so good. If I bring the server down then firebug shows the request in RED which means it was an error. However error callback is not getting called. Is this expected ? Or should jQuery's error callback ...

javascript simple object creation test: opera leaks?

Hi, I am trying to figure out certain memory leak conditions in javascript on a few browsers. Currently I'm only testing FF 3.6, Opera 10.10, and Safari 4.0.3. I've started with a fairly simple test, and can confirm no memory leaks in Firefox and Safari. But Opera just takes memory and never gives it back. What gives? Here's the test:...

jquery/javascript - image resize to fit screen

not an expert programmer. i created this code to resize photos/images to fit the screen, considering the space available for the nav bar. the script happens on load of image, and on click of the navigation. is it a good piece of code, or could it be done better? any browser issues? in the html: $(document).ready(function(){ $("#photo"...

I'm looking for a introduction to php(5 or 6)/mysql/javascript web development book

Basically I want the books to be text book based, ie, author discusses the background,philosophy,syntax,semtantix for every language AND after every section there are questions what you learned so far and mini projects. Is there any books like this, I'm absolutely new to php/mysql/javascript and web development in general. Thanks in ad...

Scroll to a div contained in a overflow:auto

Hello i have this: <div id="parent" style="overflow:auto"> ... <div id="test">Hello</div> ... </div> My question is: how to scroll parent div to have test div as first line of parent ? ...

How to call javascript function when url variable is sent

Hello, heres basically what I need to get done. I have a jsp page which allows me to add/modify/delete an item. The items are stored in a database which I have controller classes to access(dont worry bout that part) When an item gets selected and deleted the id of the item gets sent to the controller to be processed. The item will no...

Conflict between two Javascripts (MailChimp validation etc. scripts & jQuery hSlides.js)

I have two scripts running on the same page, one is the jQuery.hSlides.js script http://www.jesuscarrera.info/demos/hslides/ and the other is a custom script that is used for MailChimp list signup integration. The hSlides panel can be seen in effect here: http://theatricalbellydance.com. I've turned off the MailChimp script because it ...

IE-only Styling for jQuery qTip

I'm using jquery.qTip on http://comps.gunnjerkens.com/phws/services/ Looks beautiful with the drop shadow and rounded borders in modern browsers...unfortunately the drop shadow is lost on IE. So I want to specify an IE-only rule that makes the border a different color than white. Here's how I currently have it setup: $(this).qtip({ ...