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  • Display message when user leaves site

    - by Brian Rasmusson
    Hi, I'm looking for a way to display a message to the user if he leaves my site after only viewing one page. I found this (http://www.pgrs.net/2008/1/30/popup-when-leaving-website) clever solution, but it has a few flaws: staying_in_site = false; Event.observe(document.body, 'click', function(event) { if (Event.element(event).tagName == 'A') { staying_in_site = true; } }); window.onunload = popup; function popup() { if(staying_in_site) { return; } alert('I see you are leaving the site'); } It displays the message also when refreshing the page or using the back button. Do you know a better solution or how to fix it in the above code? I'm no javascript master :) My intention is to add the code on very specific landing pages only, and display the message when people leave the page without downloading my trial software or reading other pages on my site.

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  • How do you build an Oa_zones array in to utitlize OpenX full page invocation in Rails?

    - by johnml
    I'm serving ads using OpenX within Rails. To correctly use the OpenX full page invocation you need to set Oa_zones[] array, otherwise all available ads are requested (but will never be used). These are the necessary pieces: Build an array of zones. Ideally zones could be added in any partial, so working with this array needs to be accessible throughout the view. Output full page invocation link ie. delivery/spcjs.php?id=1&block=1 Output zones The problem is, the full page invocation script can't be loaded until the zone array is built (and instantiated in JavaScript). At the same time, the zone array can't be built until the entire view has been rendered.

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  • Programmaticaly grabbing text from a web page that is dynamically generated.

    - by bstullkid
    There is a website I am trying to pull information from in perl, however the section of the page I need is being generated using javascript so all you see in the source is <div id="results"></div> I need to somehow pull out the contents of that div and save it to a file using perl/proxies/whatever. e.g. the information I want to save would be document.getElementById('results').innerHTML; I am not sure if this is possible or if anyone had any ideas or a way to do this. I was using a lynx source dump for other pages but since I cant straight forward screen scrape this page I came here to ask about it! If anyone is interested, the page is http://downloadcenter.trendmicro.com/index.php?clk=left_nav&clkval=pattern_file&regs=NABU and the info I am trying to get is the row about the ConsumerOPR

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  • Code to make div appear after a certain amount of time.

    - by user307783
    Hi, I'm looking for code that makes a div appear after a certain amount of time on a site. Here's the sort of thing I'm talking about: <div class="container"> <div class="secretpopout"> This is the div I want to pop out after a couple of minutes. </div> </div> I'm relatively new to javascript and jQuery, but I'm assuming I will need to use the setTimeout or something similar. I've tried finding the answer online, but if someone could explain it in a way a designer (as opposed to a programmer) would get it, that would be great - ANY LIGHT shed on this would be greatly appreciated. Thank you.

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  • Encode/compress sequence of repeating integers

    - by Alex
    Hey there! I have very long integer sequences that look like this (arbitrary length!): 0000000001110002220033333 Now I need some algorithm to convert this string into something compressed like a9b3a3c3a2d5 Which means "a 9 times, then b 3 times, then a 3 times" and so on, where "a" stands for 0, "b" for 1, "c" for 2 and "d" for 3. How would you do that? So far nothing suitable came to my mind, and I had no luck with google because I didn't really know what to search for. What is this kind of encoding / compression called? PS: I am going to do the encoding with PHP, and the decoding in JavaScript.

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  • Using a bookmarklet to track a package

    - by user307558
    I'm trying to write a bookmarklet that tracks a package in the mail. First it checks to see if the tracking page is open, if not it opens it in a new tab, and then sets the value of the form to the tracking number. Finally, it submits the form. What I'm so far unable to do is set the value of the form in the case where the bookmarklet opens up a new tab. Here's what I have: javascript: (function(){ var trackingNumber = "/*tracking number*/"; var a = document.forms.trackingForm; if ('http://fedex.com/Tracking' == document.location) { trackingForm.trackNbrs.value = trackingNumber; document.forms.trackingForm.submit(); } else { window.open('http://fedex.com/Tracking'); this.window.onload = function(){ //This seems to be the problem trackingForm.trackNbrs.value = trackingNumber; onload(document.forms.trackingForm.submit()); } } })(); Any ideas?

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  • how to change 1 to 2 .

    - by zjm1126
    when i store my kml string to databse,i be this : 2. <?xml version="1.0" encoding="UTF-8"?> <kml xmlns="http://www.opengis.net/kml/2.2"> <Placemark> <name>Simple placemark</name> <description>Attached to the ground. Intelligently places itself at the height of the underlying terrain.</description> <Point> <coordinates>-122.0822035425683,37.42228990140251,0</coordinates> </Point> </Placemark> </kml> so how to change it using jquery or javascript

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  • How can I get jQuery to perform a synchronous, rather than asynchronous, AJAX request?

    - by Artem Tikhomirov
    Hello. I have a javascript widget witch provides standard extension points. One of them is the beforecreate function. It should return false to prevent an item from being created. I've added an AJAX call into this function using jQuery: beforecreate: function(node,targetNode,type,to) { jQuery.get('http://example.com/catalog/create/' + targetNode.id + '?name=' + encode(to.inp[0].value), function(result) { if(result.isOk == false) alert(result.message); }); } But I want to prevent my widget from creating the item, so I should return false in the mother-function, not in the callback. Is there any way to perform a synchronized AJAX request using jQuery or any other API? Thanks.

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  • Typed Arrays in Gecko 2: Float32Array concatenation and expansion.

    - by janesconference
    Hi all, I'm a bit confused with Javascript Typed Arrays. What I have several *Float32Array*s, that have no concat method. I'd like to concatenate them all inside another Float32Array, but: as I said before, there is no concatenation method if I try to write past the array length, the array is not expanded (aka this won't work - please note that event.frameBuffer and buffer are both Float32Array and that I don't know what the final length of my buffer will be): var length_now = buffer.length; for (var i = 0; i < event.frameBuffer.length; i += 1) { buffer [length_now + i] = event.frameBuffer[i]; } The only solution I found is to copy the Float32Array in a regular array, that's definitely not what I want. How would you do, stackoverflowers?

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  • How to overlay a small page on a html page?

    - by Usman Ajmal
    Hi, I have a webpage underconstruction. I want to notify the people who visit it about its under-construction nature. For that I wanted to show a small transparent or transluscent page on the above page as shown here http://img17.imageshack.us/i/normalpagewithasmallpag.png/ You may notice that i want that page to appear at the center of the webpage overlayed on the original page with a cross at top-right corner. Clicking on that cross may close this small page revealing the page behind it so that the users may see what has been developed so far. I hope you guys have some suggestions for me. I know its possible with javascript but don't know how...any tutorial if available will also help. Thanks a lot.

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  • Frameworks And 'traditional' coding

    - by YsoL8
    Hello Sorry if this too open ended for this forum, but here goes. I mostly use languages such as PHP and Javascript without frameworks (e.g Jquery, Drupal, CakePHP). The only real exception to this for me, is Wordpress when 'traditional' coding is slower for building information sites. I've dabbled with several frameworks over the past year and despite everyone else's (seemingly) good experiences with them, I seem to of hit a roadblock. My basic problem is that for the amount of time invested in effectively relearning a language, I don't get a lot in return. Jqeury as an example. There is really very little in that, that I couldn't accomplish easily with a few getElement.. commands. So my question is, what advantages do frameworks offer over previous coding styles? Thanks from 2003 guy!

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  • How to lock non-browser clients from submitting a request?

    - by Thomas Kohl
    I want to block non-browser clients from accessing certain pages / successfully making a request. The website content is served to authenticated users. What happens is that our user gives his credentials to our website to 3rd party - it can be another website or a mobile application - that performs requests on his behalf. Say there is a form that the user fills out and sends a message. Can I protect this form so that the server processing the submission can tell whether the user has submitted it directly from the browser or not? I don't want to use CAPTCHA for usability reasons. Can I do it with some javascript?

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  • I have a bunch of divs floated left, lined up in columns with different heights. They dont create a

    - by Roeland
    Hey guys, I am trying to create a grid like system with div's with content floated left. The problem is that the height of each div is not static since the content is different in each one. Since the height is different.. things get outta whack if one is taller then another in one row. Is there some sort of css way or js (prefer javascript) way to get around this. I really want to avoid setting large heights on the divs to get them to line up. You can see the example here: http://www.foreclosurejournalinc.com/index.php?option=com_hotproperty&view=type&id=1

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  • convert xml.documentElement.getElementsByTagName("marker")[index].getAttribute(temp) to string in ja

    - by user324884
    I am parsing xml file in javascript and after that want to cancatenate all the the data into string. but failing to do the same and it is returning undefined. GDownloadUrl("./include/dataemp2.xml", function(data) { var xml = GXml.parse(data); markers = xml.documentElement.getElementsByTagName("marker"); for(var t=0;t<18;t++) { var temp= markers[index].getAttribute("address"); html = html + temp; } }); it is returning as undefined because temp is not concatenating in "html"; whereas when i do this like html = html +markers[index].getAttribute("address"); it is giving me expected output;

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  • Combining javascripts into a single file

    - by toomanyairmiles
    Having read up recently on yahoo's web optimisation tips and using YSlow I've implemented a few of their ideas on one of my sites http://www.gwynfryncottages.com you can see the file here http://www.gwynfryncottages.com/js/gw-custom.js. While this technique seems to work perfectly on most occasions, and really does speed up the site, I do notice a significantly higher number of errors where the javascripts don't load or don't load completely while I'm working on the site so three questions:- is combining scripts this way a good idea at all in terms of reliablity? is there any way to measure the number of errors? is there any way to 'pre-load' the javascript or ensure that the number of loading errors is reduced?

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  • I want to query whitepages.com 4,000 times, how to save the results?

    - by John Corbin
    I have an old customer list of 4,000 businesses. I want to determine if the phone numbers associated with each listing are still working (and therefore the business is probably still open). I can put each number in whitepages.com and check them one by one... but want to automate the results. I have looked at their API and can't digest it. I can form the correct query URL, but trying things like cURL -O doesn't work. I have access to Mac tools, Unix tools, and could try various javascript stuff if anyone could point me in the right direction... would even pay. Help? Thx

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  • Switching/Linking to another external stylesheet in a .js file using Ruby on Rails

    - by Jake
    Im learning JQuery from a Sitepoint Book but Im trying to apply all the lessons to a Rails App. In one lesson, we are taught how to switch to a different stylesheet if the browser window is resized beyond a certain point. Here's the javascript code: if ($('body').width() > 900) { $('<link rel="stylesheet" href="wide.css" type="text/css" />') .appendTo('head'); } else { $('link[href=wide.css]').remove(); } Rails doesn't seem to want to link to the new stylesheet using 'link rel'. I've tried using the Rails helper: <%= stylesheet_link_tag 'base', :media => 'screen' %> but that doesn't work in a .js file. How do I link to an external stylesheet in a .js file using Ruby? Can I use Ruby on Rails code in a .js file? Thanks.

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  • jQuery effect on iframe parent document

    - by Jabes88
    Just wondering if anyone else has experienced this or knows why I am getting an error. I'm using javascript from within an iframe to call a parent dom element then use jQuery UI's effect core to shake it. Here is an example: $(document).ready(function(){ if ($("form").length>0) { $("form").submit(function(){ var oParentDoc = $(parent.document).find("div#element"); var action = $(this).attr("action"); var postdata = $(this).serialize(); $(oParentDoc).addClass("loading"); $.post(action,postdata,function(data){ $(oParentDoc).removeClass("loading").effect("shake",{"times":3,"distance":10},60); }); return false; }); } }); It works without the effect, but when I use an effect it gives me this error: uncaught exception: [Exception... "Component returned failure code: 0x80040111 (NS_ERROR_NOT_AVAILABLE) [nsIDOMCSSStyleDeclaration.getPropertyValue]" nsresult: "0x80040111 (NS_ERROR_NOT_AVAILABLE)" Thanks in advance for any insight :)

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  • Test For CSS3 Radial Gradient Vendor Syntax

    - by Scott Christopherson
    I'm having an issue where I'm trying to update the background gradient of an element with JavaScript based on values I specify. I tried this route: elem.style.backgroundImage = '-webkit-gradient(radial, '+x+' '+y+', 0, '+x+' '+y+', 800, from(#ccc), to(#333)), -moz-radial-gradient('+x+'px '+y+'px, circle cover, #ccc 0, #333 100%)'; Since Webkit and Gecko have two different syntaxes for CSS3 gradients, I need to specify both. However, the above code doesn't work. It works if I only have just the Gecko syntax or just the Webkit syntax, not both. I think you can check for CSS gradient support, but my question is, is there a way to check which syntax needs to be used without browser sniffing? Keep in mind that I need to set my gradients this way since the x and y coordinates of the gradient change dynamically. Hope this makes sense, thanks.

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  • URL encoding for document.location.href

    - by Tyler
    Hello - I am building an iFrame and am using document.location.href - my exact code is: <script type="text/javascript"> document.write("<iframe src='http://www.facebook.com/plugins/like.php?href=" + document.location.href + "&layout=standard&show_faces=false&action=like&font=verdana&colorscheme=light' frameborder=0></iframe>"); </script> This is working great for all of my pages except one. I believe the issue with the one page is caused by a dash "-" being in the page name. My questions is - is there a way to encode my src differently so that the link works? The CORRECT URL I want it to pull is: []/products/Product%252dExample.html But what it IS pulling in is: []/products/Product-Example.html And this is causing the page to not work correctly. Thanks!

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  • How to get this.grandparent() functionality in Mootools?

    - by RyOnLife
    I have built a class in Mootools and extended it twice, such that there is a grandparent, parent, and child relationship: var SomeClass1 = new Class({ initialize: function() { // Code }, doSomething: function() { // Code } }); var SomeClass2 = new Class({ Extends: SomeClass1, initialize: function() { this.parent(); }, doSomething: function() { this.parent(); // Some code I don't want to run from Class3 } }); var SomeClass3 = new Class({ Extends: SomeClass2, initialize: function() { this.parent(); }, doSomething: function() { this.grandParent(); } }); From Class3, the child, I need call the doSomething() method from Class1, the grandparent, without executing any code in Class2#doSomething(), the parent. What I need is a grandParent() method to complement the Mootools parent(), but it appears that one does not exist. What's the best way to accomplish this in either Mootools or pure JavaScript? Thanks.

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  • Ouput all the page's media queries in a list

    - by alecrust
    Using JavaScript, what would be the best way to output a list containing all media queries that are being applied to the current page. I assume this would need to filtering to find embedded media queries i.e. <link rel="stylesheet" media="only screen and (min-width: 30em)" href="/css/30em.css"> as well as media queries located in CSS files, i.e. @media only screen and (min-width: 320px) {} An example output of what I'm looking for: <p>There are 3 media queries loaded on this page</p> <ol> <li>30em</li> <li>40em</li> <li>960px</li> </ol>

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  • addEventListener gone after appending innerHTML

    - by Vishal Shah
    Okay, so i have the following html added to a site using javascript/greasemonkey. (just sample) *a id='abc'*HEllo*/a* *a id='xyz'*Hello*/a* (excuse me, i've had to replace the '<' '' with * since hyperlinks for new users aren't allowed!) and i've also added a click event listener for the elements. All works fine up to this point, the click event gets fired when i click the element. But... i have another function in the script, which upon a certain condition, modifies that html, ie it appends it, so it looks like: *a id='abc'*HEllo*/a* *a id='xyz'*Hello*/a* *a id='123'*Hello*/a* but when this is done, it breaks the listeners i added for the first two elements... nothing happens when i click them. if i comment out the call to the function which does the appending, it all starts working again! help please...

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  • Detecting if a browser is using Private Browsing mode

    - by Steve
    I'm building an extranet for a company paranoid about security. They want to make sure that (among other things) their users are browsing the site with the Private Browsing mode switched on in their web browser so that no cookies or history is kept. I found only this http://jeremiahgrossman.blogspot.com/2009/03/detecting-private-browsing-mode.html and http://serverfault.com/questions/18966/force-safari-to-operate-in-private-mode-and-detect-that-state-from-a-webserver The ideal solution would use no or minimal javascript. Would attempting to set a unique cookie work for all browsers and platforms? Anyone done this before? thanks!

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  • Selecting a radio button when a dropdown value changes

    - by Tim F.
    My setup is something like this: radiobutton1 - selection1 radiobutton2 - selection2 textinput1 I want radiobutton1 to be selected whenever selection1 is changed, and I want radiobutton2 to be selected whenever either selection2 or textinput1 is changed. There has to be a simple javascript solution here... I just can't find it. Here's my actual code ("$semopt" is a string holding the html code for the options on the first selection input): <input type='radio' name='semester' value='existing'/>Existing semester: <select name='sem_id'">$semopt </select><br/> <input type='radio' name='semester' value='new'/>New Semester: <select name='sem_name'"> <option value='Fall'>Fall</option> <option value='Spring'>Spring</option> </select> <input name='sem_year' value='$thisyear' size='5'"/><br/>

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