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  • how can a firefox extension detect content-type of the page loaded ?

    - by bosky101
    since my extension's pageload is triggered even when I view css or js files, i want to add another check that triggers my extension only when the current page's content-type is text/html . //eg: at my page load handler function onPageload(){ // only want to proceed if content-type reflects a text/html or */html page if ( contentTypeIsHtml() ){ //continue here } } what should contentTypeIsHtml() do ?

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  • d3: Coloring Multiple Lines from Nested Data

    - by diet_coke
    I'm currently assembling some line graphs with circles at the datapoints from arrays of JSON objects formatted like so: var data = [{ "name": "metric1", "datapoints": [ [10.0, 1333519140], [48.0, 1333519200] ] }, { "name": "metric2", "datapoints": [ [48.0, 1333519200], [12.0, 1333519260] ] }] I want to have a color for each metric, so I'm trying to color them based on the index of the object within the array data. The code I have currently for just placing the circles looks like: // We bind an svg group to each metric. var metric_groups = this.vis.selectAll("g.metric_group") .data(data).enter() .append("g") .attr("class", "metric_group"); // Then bind a circle for each datapoint. var circles = metric_groups.selectAll("circle") .data(function(d) { return d.datapoints; }); circles.enter().append("circle") .attr("r", 3.5); Now if I change that last bit to something like: circles.enter().append("circle") .attr("r", 3.5); .style("fill", function(d,i) { return i%2 ? "red" : "blue"; } I get alternating red and blue circles, as could be expected. Taking some advice from Nested Selections : 'Nesting and Index', I tried: circles.enter().append("circle") .attr("r", 3.5); .style("fill", function(d,i,j) { return j%2 ? "red" : "blue"; } Which doesn't work (j is undefined), presumably because we are in the named property datapoints, rather than an array element. How might I go about doing the coloring that I want without changing my data structure? Thanks!

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  • How do I retrieve and display html/asp/aspx page on different host using jQuery ajax?

    - by user717236
    I have an html page, which is a dynamically created asp/aspx page on http://host2.mydomain.com. I have no control over the html page. I cannot modify it in any such way. I cannot modify this page; so, setting document.domain is out of the question, unfortunately. I want to retrieve and display this page on http://host1.mydomain.com/page1.jsp using Ajax. FYI: host1 is being served by IIS 7 and Apache Tomcat (for JSP pages). And host2 is using IIS 7 and ASP. How can I retrieve this page using a Ajax POST request? Thank you.

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  • How to I correctly add brackets to this code

    - by Mohammad
    This code removes whites paces, (fyi: it's credited to be very fast) function wSpaceTrim(s){ var start = -1, end = s.length; while (s.charCodeAt(--end) < 33 ); //here while (s.charCodeAt(++start) < 33 ); //here also return s.slice( start, end + 1 ); } The while loops don't have brackets, how would i correctly add brackets to this code? while(iMean){ like this; } Thank you so much!

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  • What is the best way to get an element's tag name in JS?

    - by webdestroya
    I want to get the name of a certain tag (to tell whether it is a div/input/span/p/so on) I found that there are 3 different attributes that give me the tag name: tagName, nodeName, and localName My question is: Which one is the most supported in all browsers? And/or is there a method to get the tag name in Prototype (I looked but couldn't find one)?

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  • XPath expression exception

    - by fftoolbar
    Hi I am not really sure if i am doing this right with XPath expression. I am trying to locate a text on DOM and this text is assingned to a variable. I have text stored in SQLite and i have retrievd the text and i am trying to locate it on the webpage which actually contains the text. so i ahve the following code: var searchText = dataset[x]['selectedText']; alert(dataset[x]['selectedText']); var res = googbar_frames[0].contentDocument.evaluate("//*[.=searchText]",googbar_frames[0].contentDocument.body,null,XPathResult.ANY_TYPE,null); alert(res.snapshotLength); And i get the following error. Error: Permission denied for <http://en.wikipedia.org> to call method XPathException.toString on <>. Error: Permission denied for <http://en.wikipedia.org> to call method XPathException.toString on <>. Have got the expression correct. I am trying to look for the text on DOM. Or am i going wrong somwehere? cheers

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  • jQuery drawing and modifying lines and positions

    - by Chris
    I want to allow people to select a feature region on an image using jQuery. This should work similarly to the Facebook tagger except once someone "tags" an area of the image an ellipse should appear with the ability for the user to rotate and scale it. How can I achieve this using jQuery?

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  • How do I handle the messages for a simple web-based live chat, on the server side?

    - by Carson Myers
    I'm building a simple live chat into a web application running on Django, but one thing I'm confused about is how I should store the messages between users. The chat will support multiple users, and a chat "session" is composed of users connected to one user that is the "host." The application is a sort of online document collaboration thing, so user X has a document, and users Y and Z would connect to user X to talk about the document, and that would be one chat session. If user Y disconnected for five minutes, and then signed back in and reconnected to user X, he should not get any of the messages shared between users X and Z while he was away. if users X, Y, and Z can have a chat session about user X's document, then users X and Y can connect to a simultaneous, but separate discussion about user Z's document. How should I handle this? Should I keep each message in the database? Each message would have an owner user and a target user (the host), and a separate table would be used to connect users with messages (which messages are visible to what users). Or should I store each session as an HTML file on the server, which messages get appended to? The problem is, I can't just send messages directly between clients. They have to be sent to the server in a POST request, and then each client has to periodically check for the messages in a GET request. Except I can't just have each message cleared after a client fetches it, because there could be multiple clients. How should I set this up? Any suggestions?

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  • CSS3 image rotation and reposition to fit in div

    - by blid
    I'll start with JS Fiddle: http://jsfiddle.net/zy2xy/4/ <div id="page" style="position: relative; background: #ccc; width: 500px; height: 600px;"> <div id="container" style="top: 50px; left: 100px; width: 200px; height: 200px; position: absolute; background: #fff;"> <img src="http://lorempixel.com/200/100/"> </div> </div>????????? I've got a whole page div #page, and inside that another div #container positioned absolute against #page. What I want to achieve, is to rotate image inside it 90deg, 180deg or 270deg but always move that image to top left corner of #container. I tried a little bit with transform-origin but I couldn't find any solution.

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  • get cookie after set cookie

    - by user1432779
    I've set my cookie using set-cookie as follows on the server's cgi scripts print """Content-type: text/html\r\n""", print """Set-Cookie: name=value\r\n\r\n""", but when I reload the page I can't get the cookie as it doesn't appear on document.cookie How do I get the cookies? and was Set-cookie : name=value supposed to appear on document.cookie after I refresh the page? Overall I want the client side to recognize the cookie if exists and act accordingly Thanks

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  • Is it possible to wrap an asynchronous event and its callback in a function that returns a boolean?

    - by Rob Flaherty
    I'm trying to write a simple test that creates an image element, checks the image attributes, and then returns true/false. The problem is that using the onload event makes the test asynchronous. On it own this isn't a problem (using a callback as I've done in the code below is easy), but what I can't figure out is how to encapsulate this into a single function that returns a boolean. I've tried various combinations of closures, recursion, and self-executing functions but have had no luck. So my question: am I being dense and overlooking something simple, or is this in fact not possible, because, no matter what, I'm still trying to wrap an asynchronous function in synchronous expectations? Here's the code: var supportsImage = function(callback) { var img = new Image(); img.onload = function() { //Check attributes and pass true or false to callback callback(true); }; img.src = 'data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs='; }; supportsImage(function(status){ console.log(status); }); To be clear, what I want is to be able to wrap this in something such that it can be used like: if (supportsImage) { //Do some crazy stuff } Thanks! (Btw, I know there are a ton of SO questions regarding confusion about synchronous vs. asynchronous. Apologies if this can be reduced to something previously answered.)

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  • fixed position of inner div related to its container

    - by Lina
    Hi, if have the following code: <div id="container" style="position:relative; width:300px; height:300px; overflow:scroll;"> <div id="header"> </div> <div> a table of contents </div> </div> how do i make the inner div with the id "header" follows when i scroll down the outer div "container"? TIA Lina

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  • i want to show a panel just like facebook or for captcha validation

    - by Lokesh
    i have a simple form and when user enters all the information and hits the submit botton than a panel should open just a width of 200px and height of 100px inside the same window. which should have two fields one is captcha image and a text box and a check botton and if captcha code is right than panel should automatically close and redirect to another page just like facebook . all the details of the panel is saved on another php file.

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  • CSS Z-Index with Gradient Background

    - by Jona
    I'm making a small webpage where the I would like the top banner with some text to remain on top, as such: HTML: <div id = "topBanner"> <h1>Some Text</h1> </div> CSS: #topBanner{ position:fixed; background-color: #CCCCCC; width: 100%; height:200px; top:0; left:0; z-index:900; background: -moz-linear-gradient(top, rgba(204,204,204,0.65) 0%, rgba(204,204,204,0.44) 32%, rgba(204,204,204,0.12) 82%, rgba(204,204,204,0) 100%); /* FF3.6+ */ background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,rgba(204,204,204,0.65)), color-stop(32%,rgba(204,204,204,0.44)), color-stop(82%,rgba(204,204,204,0.12)), color-stop(100%,rgba(204,204,204,0))); /* Chrome,Safari4+ */ background: -webkit-linear-gradient(top, rgba(204,204,204,0.65) 0%,rgba(204,204,204,0.44) 32%,rgba(204,204,204,0.12) 82%,rgba(204,204,204,0) 100%); /* Chrome10+,Safari5.1+ */ background: -o-linear-gradient(top, rgba(204,204,204,0.65) 0%,rgba(204,204,204,0.44) 32%,rgba(204,204,204,0.12) 82%,rgba(204,204,204,0) 100%); /* Opera 11.10+ */ background: -ms-linear-gradient(top, rgba(204,204,204,0.65) 0%,rgba(204,204,204,0.44) 32%,rgba(204,204,204,0.12) 82%,rgba(204,204,204,0) 100%); /* IE10+ */ background: linear-gradient(to bottom, rgba(204,204,204,0.65) 0%,rgba(204,204,204,0.44) 32%,rgba(204,204,204,0.12) 82%,rgba(204,204,204,0) 100%); /* W3C */ filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#a6cccccc', endColorstr='#00cccccc',GradientType=0 ); /* IE6-9 */ } /*WebPage Header*/ h1{ font-size:3em; color:blue; text-shadow:#CCCCCC 2px 2px 2px, #000 0 -1px 2px; position: absolute; width: 570px; left:50%; right:50%; line-height:20px; margin-left: -285px; z-index:999; } The z-index works fine, except that because I'm using a gradient any time I scroll down the elements behind the banner are still visible, albeit somewhat transparent. Is there any way to make them total invisible? i.e., what I'm trying to do is make it as though the banner is a solid color, even though it's a gradient. Thanks in advance for any help!

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  • Highlight DIV and dim the rest on mouseover

    - by Darren Sweeney
    I have a page full of DIVs which contain images. When I mouse over an image I can highlight it or add a shadow to accent it easily by adding class etc but is there a way to dim every other image instead. DIVs are loaded into DOM and I would like the DIV currently hovered over to retain 100% or 1 opacity and the rest of the DIVs on the page to fade to say 70% or 0.7 when one DIV is highlighted. Is this possible?

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  • Google Charts - Adding Tooltip to Colorized Column Chart

    - by David K
    I created a column chart with google charts that has a different color assigned to each column using the following posting: Assign different color to each bar in a google chart But now I'm trying to figure out how to customize the tooltips for each column to also include the number of users in addition to the percent, so "raw_data[i][1]" I would like it to look like "70% (80 Users)" I understand that there is "data.addColumn({type:'number',role:'tooltip'});" but I'm having trouble understanding how to implement it for this use-case. function drawAccountsChart() { var data = new google.visualization.DataTable(); var raw_data = [ ['Parents', 80, 160], ['Students', 94, 128], ['Teachers', 78, 90], ['Admins', 68, 120], ['Staff', 97, 111] ]; data.addColumn('string', 'Columns'); for (var i = 0; i < raw_data.length; ++i) { data.addColumn('number', raw_data[i][0]); } data.addRows(1); for (var i = 0; i < raw_data.length; ++i) { data.setValue(0, i+1, raw_data[i][1]/raw_data[i][2]*100); } var options = { height:220, chartArea: { left:30, width: "70%", height: "70%" }, backgroundColor: { fill:"transparent" }, tooltop:{ textStyle: {fontSize: "12px",}}, vAxis: {minValue: 0} }; var formatter = new google.visualization.NumberFormat({ suffix: '%', fractionDigits: 1 }); formatter.format(data, 1); formatter.format(data, 2); formatter.format(data, 3); formatter.format(data, 4); formatter.format(data, 5); var chart = new google.visualization.ColumnChart(document.getElementById('emailAccountsChart')); chart.draw(data, options); }

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  • Showing same dfp ads in a single page web application

    - by mivaas19
    I have a single page web application which contains dfp ads. I have two dfp adunits that Iam firing and they are placed in between the content which is a list of articles for a particular category. When I click on another category,it just loads articles for different category(doesnt change the url in address bar) and triggers the same ads. So this is like triggering the ads on the same page. The ads dont show up the second time and this is because you cant use the same adunits on the same page. Since I cannot use the refresh function provided by dfp since my DOM is reconstructed everytime, is there any way I can do this?.

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  • Smarty iteration: is there a similar function when not in a foreach loop?

    - by Kyle Sevenoaks
    Hi, I'm trying to add a JS fly to basket plugin to the site I'm working on, but the plugin needs unique productID numbers, is there a way to iterate this in Smarty when not in a foreach loop? Something like: {$smarty.foreach.foo.iteration} Here's the code I need to itrate: <span id="slidingProd57404045"> <a href="{link controller=order action=addToCart id=$product.ID returnPath=true}" rel="nofollow" class="addToCart" title="Bestill" onclick="addToBasket(57404045); return false;" id="fly_to_basket">&nbsp;</a> </span> The 57404045 needs to be iterated. Thanks.

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  • How to get rid of the 'progress' cursor?

    - by Ivan
    I have an interval that launches an AJAX call to check if there is any update for the page (I imagine that it's similar to the mechanism used by Facebook or StackExchange to check for new notifications). The problem is that this call changes the cursor to the 'progress' or 'busy' cursor (visual problem) and disables to option to click on links (functional problem). I suppose both problems are related. How can get rid of this effect or at least minimize the consequences? Some code: setInterval(function() { try { var mid = $($("ul#alert-messages li.regular")[0]).attr('ref'); call_ajax('/load_alerts', {num:0, id:mid}, function (data) { if (data.ok) { for (var i=0; i<data.result.length; i++) { // .... } // ... } }, function() {}, // Do not show any error for this!! false); // Do not change cursor! } catch (e) {} }, 15000); function call_ajax(url, data, fnSuccess, fnError) { $.ajax({ 'url': url, 'type': 'POST', 'data': data, 'dataType': "json", 'success' : function(data) { if (fnSuccess) { fnSuccess(data); } else { if (typeof data.msg != 'undefined') { topBar(data.msg, typeof data.ok != 'undefined' && data.ok? 'message' : 'error'); } } }, error : function (jqXHR, textStatus, errorThrown) { console.log(errorThrown); if (fnError) { fnError(STR_ERROR_AJAX + textStatus); } else { topBar(STR_ERROR_AJAX + textStatus, 'error'); } } }); }

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  • how to parse string into a date pattern using dojo

    - by Dojouser
    Hi, I have a value as '05/17/2010' I would like to get it as May 17, 2010 by using dojo.date.locale.I have tried using the dojo.date.locale.parse as follows : x = '05/17/2010' var x= dojo.date.locale.parse(x, {datePattern: "MM/dd/yyyy", selector: "date"}); alert(x) This doesnt give me the desired date pattern I also tried replacing the pattern as datePattern : "MMMM d, yyyy" but it returns me null. Any help highly appreciated. Thanks

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