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• jQuery UI Tabs - bind tabs to links on the same page

  - by Troy

  Hello, I'm trying to bind tabs to a link on the same page, but I'm a relative newby to jQuery and need some help. I have the tabs working with the code from jQuery UI site. However, how do I bind the links in the sidebar on the same page? <script> $(function() { $( "#tabs" ).tabs(); }); /script> <div class="demo"> <div id="tabs"> <ul> <li><a href="#tabs-1">Nunc tincidunt</a></li> <li><a href="#tabs-2">Proin dolor</a></li> <li><a href="#tabs-3">Aenean lacinia</a></li> </ul> <div id="tabs-1"> <p>Proin elit arcu, rutrum commodo, vehicula tempus, commodo a, risus. Curabitur nec arcu. Donec sollicitudin mi sit amet mauris. Nam elementum quam ullamcorper ante. Etiam aliquet massa et lorem. Mauris dapibus lacus auctor risus. Aenean tempor ullamcorper leo. Vivamus sed magna quis ligula eleifend adipiscing. Duis orci. Aliquam sodales tortor vitae ipsum. Aliquam nulla. Duis aliquam molestie erat. Ut et mauris vel pede varius sollicitudin. Sed ut dolor nec orci tincidunt interdum. Phasellus ipsum. Nunc tristique tempus lectus.</p> </div> <div id="tabs-2"> <p>Morbi tincidunt, dui sit amet facilisis feugiat, odio metus gravida ante, ut pharetra massa metus id nunc. Duis scelerisque molestie turpis. Sed fringilla, massa eget luctus malesuada, metus eros molestie lectus, ut tempus eros massa ut dolor. Aenean aliquet fringilla sem. Suspendisse sed ligula in ligula suscipit aliquam. Praesent in eros vestibulum mi adipiscing adipiscing. Morbi facilisis. Curabitur ornare consequat nunc. Aenean vel metus. Ut posuere viverra nulla. Aliquam erat volutpat. Pellentesque convallis. Maecenas feugiat, tellus pellentesque pretium posuere, felis lorem euismod felis, eu ornare leo nisi vel felis. Mauris consectetur tortor et purus.</p> </div> <div id="tabs-3"> <p>Mauris eleifend est et turpis. Duis id erat. Suspendisse potenti. Aliquam vulputate, pede vel vehicula accumsan, mi neque rutrum erat, eu congue orci lorem eget lorem. Vestibulum non ante. Class aptent taciti sociosqu ad litora torquent per conubia nostra, per inceptos himenaeos. Fusce sodales. Quisque eu urna vel enim commodo pellentesque. Praesent eu risus hendrerit ligula tempus pretium. Curabitur lorem enim, pretium nec, feugiat nec, luctus a, lacus.</p> <p>Duis cursus. Maecenas ligula eros, blandit nec, pharetra at, semper at, magna. Nullam ac lacus. Nulla facilisi. Praesent viverra justo vitae neque. Praesent blandit adipiscing velit. Suspendisse potenti. Donec mattis, pede vel pharetra blandit, magna ligula faucibus eros, id euismod lacus dolor eget odio. Nam scelerisque. Donec non libero sed nulla mattis commodo. Ut sagittis. Donec nisi lectus, feugiat porttitor, tempor ac, tempor vitae, pede. Aenean vehicula velit eu tellus interdum rutrum. Maecenas commodo. Pellentesque nec elit. Fusce in lacus. Vivamus a libero vitae lectus hendrerit hendrerit.</p> </div> </div> </div> <div id="sidebar"> <a href="#tab-1" id="tab-1"><img src="image1.jpg" /></a> <a href="#tab-2" id="tab-2"><img src="image2.jpg" /></a> </div>

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• Class Loading Deadlocks

  - by tomas.nilsson

  Mattis follows up on his previous post with one more expose on Class Loading Deadlocks As I wrote in a previous post, the class loading mechanism in Java is very powerful. There are many advanced techniques you can use, and when used wrongly you can get into all sorts of trouble. But one of the sneakiest deadlocks you can run into when it comes to class loading doesn't require any home made class loaders or anything. All you need is classes depending on each other, and some bad luck. First of all, here are some basic facts about class loading: 1) If a thread needs to use a class that is not yet loaded, it will try to load that class 2) If another thread is already loading the class, the first thread will wait for the other thread to finish the loading 3) During the loading of a class, one thing that happens is that the <clinit method of a class is being run 4) The <clinit method initializes all static fields, and runs any static blocks in the class. Take the following class for example: class Foo { static Bar bar = new Bar(); static { System.out.println("Loading Foo"); } } The first time a thread needs to use the Foo class, the class will be initialized. The <clinit method will run, creating a new Bar object and printing "Loading Foo" But what happens if the Bar object has never been used before either? Well, then we will need to load that class as well, calling the Bar <clinit method as we go. Can you start to see the potential problem here? A hint is in fact #2 above. What if another thread is currently loading class Bar? The thread loading class Foo will have to wait for that thread to finish loading. But what happens if the <clinit method of class Bar tries to initialize a Foo object? That thread will have to wait for the first thread, and there we have the deadlock. Thread one is waiting for thread two to initialize class Bar, thread two is waiting for thread one to initialize class Foo. All that is needed for a class loading deadlock is static cross dependencies between two classes (and a multi threaded environment): class Foo { static Bar b = new Bar(); } class Bar { static Foo f = new Foo(); } If two threads cause these classes to be loaded at exactly the same time, we will have a deadlock. So, how do you avoid this? Well, one way is of course to not have these circular (static) dependencies. On the other hand, it can be very hard to detect these, and sometimes your design may depend on it. What you can do in that case is to make sure that the classes are first loaded single threadedly, for example during an initialization phase of your application. The following program shows this kind of deadlock. To help bad luck on the way, I added a one second sleep in the static block of the classes to trigger the unlucky timing. Notice that if you uncomment the "//Foo f = new Foo();" line in the main method, the class will be loaded single threadedly, and the program will terminate as it should. public class ClassLoadingDeadlock { // Start two threads. The first will instansiate a Foo object, // the second one will instansiate a Bar object. public static void main(String[] arg) { // Uncomment next line to stop the deadlock // Foo f = new Foo(); new Thread(new FooUser()).start(); new Thread(new BarUser()).start(); } } class FooUser implements Runnable { public void run() { System.out.println("FooUser causing class Foo to be loaded"); Foo f = new Foo(); System.out.println("FooUser done"); } } class BarUser implements Runnable { public void run() { System.out.println("BarUser causing class Bar to be loaded"); Bar b = new Bar(); System.out.println("BarUser done"); } } class Foo { static { // We are deadlock prone even without this sleep... // The sleep just makes us more deterministic try { Thread.sleep(1000); } catch(InterruptedException e) {} } static Bar b = new Bar(); } class Bar { static { try { Thread.sleep(1000); } catch(InterruptedException e) {} } static Foo f = new Foo(); }

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• Coda slider from within Tabbed Ajax?

  - by voyageur

  Hi I am trying to use a simple Jquery Coda slider (that works fine alone) inside one of the tabs in the Jquery Tools Tabbed Ajax. When I click that tab, it is empty ! while it actually display the Coda slider. The tab page is exactly the same as the one on Jquery Tools site: Tabs demo 11 / 13 : Loading tab contents with AJAX The Coda slider is: <div class="coda-slider-wrapper"> <div class="coda-slider preload" id="coda-slider-1"> <div class="panel"> <div class="panel-wrapper"> <h2 class="title">Panel 1</h2> <p>This slider uses default settings.</p> <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Maecenas metus nulla, commodo a sodales sed, dignissim pretium nunc. Nam et lacus neque. Sed volutpat ante id mauris laoreet vestibulum. Nam blandit felis non neque cursus aliquet. Morbi vel enim dignissim massa dignissim commodo vitae quis tellus. Nunc non mollis nulla. Sed consectetur elit id mi consectetur bibendum. Ut enim massa, sodales tempor convallis et, iaculis ac massa. Etiam suscipit nisl eget lorem pellentesque quis iaculis mi mattis. Aliquam sit amet purus lectus. Maecenas tempor ornare sollicitudin.</p> </div> </div> <div class="panel"> <div class="panel-wrapper"> <h2 class="title">Panel 2</h2> <p>Proin nec turpis eget dolor dictum lacinia. Nullam nunc magna, tincidunt eu porta in, faucibus sed magna. Suspendisse laoreet ornare ullamcorper. Nulla in tortor nibh. Pellentesque sed est vitae odio vestibulum aliquet in nec leo.</p> </div> </div> Help is very much appreciated, and thanx.

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• How to detect page zoom level in all modern browsers?

  - by understack

  How can I detect page zoom level in all modern browsers? While this thread tells how to do it in IE7 and IE8, I can't find good solution for FF, Safari and Chrome. For FF one of the suggested solution FF stores page zoom level for future. So on first page load would I be able to get zoom level? Somewhere I read it works if you're changing zoom level on that page after its loaded. Is there a way to trap 'zoom' event? I need this because some of my calculations are based on no of pixels and they get changed on Zoom. Thanks. Modified sample given by tfl. This would alert different height based on zoom level. <html> <head> <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.3.1/jquery.min.js" type="text/javascript"/></script> <title></title> </head> <body> <div id="xy" style="border:1px solid #f00; width:100px;"> Lorem ipsum dolor sit amet, consectetur adipiscing elit. Pellentesque sollicitudin tortor in lacus tincidunt volutpat. Integer dignissim imperdiet mollis. Suspendisse quis tortor velit, placerat tempor neque. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. Praesent bibendum auctor lorem vitae tempor. Nullam condimentum aliquam elementum. Nullam egestas gravida elementum. Maecenas mattis molestie nisl sit amet vehicula. Donec semper tristique blandit. Vestibulum adipiscing placerat mollis. </div> <div> <button onclick="alert($('#xy').height());">Show</button> </div> </body> </html>

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• HTML Aligning Text

  - by nevillejones

  I want to display text on a page like in the following way: My Text: Text Here My Text: More Text Here......................................................... Text from line above continued here. I have the following markup just to test: <html> <head> <style type="text/css"> body { font-family: arial; } form div { padding: 3px; } form .label { float: left; text-align: right; width: 150px; margin-right: 8px; } </style> </head> <body> <form> <div class="label">My Text:</div> <div>Aenean tellus diam, pharetra sed posuere sed, ullamcorper eget enim. Suspendisse quis posuere nisi. Integer sodales neque id erat luctus suscipit. Curabitur in nisi arcu. Curabitur suscipit tellus non lectus blandit non mollis risus aliquet. Proin et felis nulla. Integer ut felis nibh, eu condimentum elit. Sed tincidunt fermentum lorem, convallis ornare ipsum mattis sed. Vestibulum vel quam sed velit condimentum volutpat eu sed enim. Duis tincidunt, turpis id suscipit molestie, erat tortor tincidunt augue, eu venenatis erat neque nec nisi. Nunc malesuada bibendum elit eu bibendum.</div> <div class="label">My Text 2:</div> <div>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nulla suscipit arcu ut risus dapibus tincidunt et ut orci. Vestibulum vitae urna in ligula fringilla facilisis aliquet vel nisl. Quisque placerat risus eget arcu fermentum at consectetur arcu lobortis. In hac habitasse platea dictumst. In in libero non justo pellentesque cursus quis non nisi. Donec sit amet pharetra ipsum. Class aptent taciti sociosqu ad litora torquent per conubia nostra, per inceptos himenaeos. Nulla enim enim, fringilla vitae sodales id, ultrices non lacus. Etiam id augue ut dui convallis hendrerit. Vivamus urna justo, dignissim in suscipit eu, facilisis a libero. Class aptent taciti sociosqu ad litora torquent per conubia nostra, per inceptos himenaeos. .</div> </form> </body> When this is rendered about half the text is displayed underneath the corresponding "label" class div. I would like all the text to be appear to the right of the "label" div.

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• Connection Reset on MySQL query

  - by sunwukung

  OK, I'm flummoxed. I'm trying to execute a query on a database (locally) and I keep getting a connection reset error. I've been using the method below in a generic DAO class to build a query string and pass to Zend_Db API. public function insert($params) { $loop = false; $keys = $values = ''; foreach($params as $k => $v){ if($loop == true){ $keys .= ','; $values .= ','; } $keys .= $this->db->quoteIdentifier($k); $values .= $this->db->quote($v); $loop = true; } $sql = "INSERT INTO " . $this->table_name . " ($keys) VALUES ($values)"; //formatResult returns an array of info regarding the status and any result sets of the query //I've commented that method call out anyway, so I don't think it's that try { $this->db->query($sql); return $this->formatResult(array( true, 'New record inserted into: '.$this->table_name )); }catch(PDOException $e) { return $this->formatResult($e); } } So far, this has worked fine - the errors have been occurring since we generated new tables to record user input. The insert string looks like this: INSERT INTO tablename(`id`,`title`,`summary`,`description`,`keywords`,`type_id`,`categories`) VALUES ('5539','Sample Title','Sample content',' \'Lorem ipsum dolor sit amet, consectetur adipiscing elit. In et pellentesque mauris. Curabitur hendrerit, leo id ultrices pellentesque, est purus mattis ligula, vitae imperdiet neque ligula bibendum sapien. Curabitur aliquet nisi et odio pharetra tincidunt. Phasellus sed iaculis nisl. Fusce commodo mauris et purus vehicula dictum. Nulla feugiat molestie accumsan. Donec fermentum libero in risus tempus elementum aliquam et magna. Fusce vitae sem metus. Aenean commodo pharetra risus, nec pellentesque augue ullamcorper nec. Class aptent taciti sociosqu ad litora torquent per conubia nostra, per inceptos himenaeos. Nullam vel elit libero. Vestibulum in turpis nunc.\'','this,is,a,sample,array',1,'category title') You'll probably notice the big chunk of whitespace before the Lorem Ipsum string. The description field is being populated from a TinyMCE textarea - I'm guessing it's chucking in some line returns, so I've tried stripping those out. However, even if I disable the TinyMCE field, the reset error still occurs. The next port of call was checking the limits on the table, since it seems to insert if the length of "description" is around the 300 mark (it varies between 310 - 330). The field limit is set to VARCHAR(1500) and the validation on this field won't allow anything past bigger than 1200 with HTML, 800 without. The real kicker is that if I take this sql string and execute it via the command line, it works fine - so I can't for the life of me figure out what's wrong. So, in a nutshell, I'm stumped. Any ideas?

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• jQuery fadeIn and fadeOut buggy on hover of image

  - by user186319

  Hi All, I have four images on a page that on hover, needs to replace the main text with relevant text pertaining to that image. It's working but buggy. If I roll over slowly and roll off slowly, I get the desired effect. When I rollover quickly both div's content show. Here is a thinned out version of what I need to be able to do. <img src="btn-open.gif" class="btn" /> <div class="mainText"> <h1>Main text</h1> <p>Morbi mollis auctor magna, eu sodales mi posuere elementum. Donec lacus lorem, vestibulum sed luctus ac, tincidunt sit amet eros. Nullam tristique lectus lobortis nibh pharetra placerat. Aliquam quis tellus mauris. Quisque eu convallis elit. Sed vitae libero est. Suspendisse laoreet magna magna, vitae malesuada diam. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. Fusce eros ipsum, interdum et volutpat sed, commodo aliquam odio. Maecenas auctor condimentum mi. Maecenas ante eros, tristique nec viverra sed, molestie sit amet nulla. Suspendisse vitae turpis ac felis rutrum interdum.</p> </div> <div class="replacementText"> <h1>Replacement text</h1> <p>Nulla ac magna nec quam cursus mollis eget a nulla! Vestibulum quis nibh ipsum, ut vehicula leo. Etiam ac felis suscipit mi semper vehicula. Praesent est mi, suscipit sit amet bibendum at, porta quis elit. Integer lectus est, consequat non sodales ac, pharetra sit amet tellus. Suspendisse porttitor massa a dolor suscipit sed ullamcorper ipsum vehicula. In malesuada augue sit amet ante volutpat euismod. Ut vel felis sed enim placerat ultricies. Aliquam erat volutpat. Vivamus rutrum; ante vitae euismod accumsan, felis odio lacinia magna, eu viverra nisl metus non ligula? In metus nisi, viverra vel scelerisque non, ullamcorper sed arcu? In hac habitasse platea dictumst. Donec laoreet dapibus quam vitae pulvinar. Morbi ut purus nisl. Nulla eu velit ipsum; vel mattis magna. Aenean sodales faucibus dapibus.</p> </div> $(document).ready(function() { $(".btn").hover( function() { $(this).css({ cursor: "pointer" }); $(".mainText").hide(); $(".replacementText").slideDown("slow"); }, function() { $(".replacementText").hide(); $(".mainText").slideDown("slow"); }); });

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• IE 6 and 7 background inheritance problem, how do I solve this?

  - by Evilalan

  When I'm trying to create a rounded shaded box it works fine on FF and IE8 but on IE6 and IE7, any div inside the box gets the last background but if you set that all divs on the level where there should not be a background have background:none it doesn't show any background on the level that comes before *The code is pointing to live images on Image Shack so you can save and run that it will work normally on Firefox but you can see what happen on IE6/7. Also I can't give a specific class for the intens inside the containet "background" because it's a CMS that I'm trying to style! the code: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>Problem With IE6 and 7</title> <style type="text/css"> * {padding:0px; margin:0px auto;} body {font-family:Verdana, Geneva, sans-serif; color:#666; font-size:14px; text-align:justify;} .background {width:300px;} .background div {background:url(http://img6.imageshack.us/img6/5763/76022084.png) repeat-y;} .background div div {background:url(http://img253.imageshack.us/img253/444/97936614.png) top left no-repeat;} .background div div div {background:url(http://img13.imageshack.us/img13/3667/45918712.png) bottom left no-repeat;} .background div div div div {padding:15px; background:none;} </style> </head> <body> <div class="background"> <div><div><div><div> <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Duis ut sagittis nisl. Nullam facilisis volutpat metus eu semper. Sed eleifend, mi sed rhoncus interdum, neque quam pellentesque diam, in tincidunt metus nulla in ligula. Donec dui tellus, ultricies vel venenatis vitae, aliquam et purus. Cras eu nunc urna, in placerat quam. Pellentesque lobortis pellentesque orci, a tempus diam consequat nec. Aliquam erat volutpat. Aliquam laoreet blandit tellus in mollis. Duis tincidunt, justo sit amet lacinia ultrices, nibh justo venenatis erat, non commodo libero ligula quis ante. Cras eget nulla nec est accumsan porttitor at euismod nulla. Integer pharetra lacinia malesuada. Donec commodo vestibulum est, eget pellentesque velit volutpat nec. In id erat nec ipsum consequat convallis id non libero. Sed dui nisl, molestie vel dignissim sed, mattis in est. Vestibulum porttitor posuere ipsum, id facilisis libero dapibus et. Fusce consequat malesuada nulla, vitae faucibus neque consectetur eget. Curabitur porta dapibus justo dictum porttitor. Curabitur facilisis faucibus diam, vel dapibus ipsum ornare sed. Vestibulum turpis nulla, facilisis condimentum sodales sed, imperdiet placerat mi. Cras ac risus ipsum. </p> </div></div></div> </div><!-- class background end here --> </body> </html>

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• Fix a box 250px from top of content with wrapping content

  - by Matt

  I'm having trouble left aligning a related links div inside a block of text, exactly 250 pixels from the top of a content area, while retaining word wrapping. I attempted to do this with absolute positioning, but the text in the content area doesn't wrap around the content. I would just fix the related links div in the content, however, this will display on an article page, so I would like for it to be done without placing it in a specific location in the content. Is this possible? If so, can someone help me out with the CSS for this? Example image of desired look & feel... UPDATE: For simplicity, I've added example code. You can view this here: http://www.focusontheclouds.com/files/example.html. Example HTML: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>Example Page</title> <style> body { width: 400px; font-family: Arial, sans-serif; } h1 { font-family: Georgia, serif; font-weight: normal; } .relatedLinks { position: relative; width: 150px; text-align: center; background: #f00; height: 300px; float: left; margin: 0 10px 10px 0; } </style> </head> <body> <div class="relatedLinks"><h1>Related Links</h1></div> <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nunc tempus est luctus ante auctor et ullamcorper metus ullamcorper. Vestibulum molestie, lectus sed luctus egestas, dolor ipsum aliquet orci, ac bibendum quam elit blandit nulla.</p> <p>In sit amet sagittis urna. In fermentum enim et lectus consequat a congue elit porta. Pellentesque nisl quam, elementum vitae elementum et, facilisis quis velit. Nam odio neque, viverra in consectetur at, mollis eu mi. Etiam tempor odio vitae ligula ultrices mollis. </p> <p>Donec eget ligula id augue pulvinar lobortis. Mauris tincidunt suscipit felis, eget eleifend lectus molestie in. Donec et massa arcu. Aenean eleifend nulla at odio adipiscing quis interdum arcu dictum. Fusce tellus dolor, tempor ut blandit a, dapibus ac ante. Nulla eget ligula at turpis consequat accumsan egestas nec purus. Nullam sit amet turpis ac lacus tincidunt hendrerit. Nulla iaculis mauris sed enim ornare molestie. </p> <p>Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. Maecenas non purus diam. Suspendisse iaculis tincidunt tempor. Suspendisse ut pretium lectus. Maecenas id est dui.</p> <p>Nunc pretium ipsum id libero rhoncus varius. Duis imperdiet elit ut turpis porta pharetra. Nulla vel dui vitae ipsum sollicitudin varius. Duis sagittis elit felis, quis interdum odio. </p> <p>Morbi imperdiet volutpat sodales. Aenean non euismod est. Cras ultricies felis non tortor congue ultrices. Proin quis enim arcu. Cras mattis sagittis erat, elementum bibendum ipsum imperdiet eu. Morbi fringilla ullamcorper elementum. Vestibulum semper dui non elit luctus quis accumsan ante scelerisque.</p> </body> </html>

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