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  • Call an anonymous function defined in a setInterval

    - by Tominator
    Hi, I've made this code: window.setInterval(function(){ var a = doStuff(); var b = a + 5; }, 60000) The actual contents of the anonymous function is of course just for this small example as it doesn't matter. What really happens is a bunch of variables get created in the scope of the function itself, because I don't need/want to pollute the global space. But as you all know, the doStuff() function won't be called until 60 seconds in the page. I would also like to call the function right now, as soon as the page is loaded, and from then on every 60 seconds too. Is it somehow possible to call the function without copy/pasting the inside code to right after the setInterval() line? As I said, I don't want to pollute the global space with useless variables that aren't needed outside the function.

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  • Suggest Sphinx index scheme

    - by htf
    Hi. In a MySQL database I have documents of different type: some have text content, meta keys, descriptions, others have code, SKU number, size and brand name and so on. The problem is, I have to search something in all of these documents and then display a single page, where the results will be grouped by the document type, such as help page, blog post, item... It's not clear for me how to implement the Sphinx index: I want to have a single index to speed up queries, but since different docs have different structure - how can I group them? I was thinking about just concatenating them, but it just doesn't feel right.

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  • Equivalent to produce field glow in other browsers?

    - by Liso22
    I was long using this to add a glow to focused fields, I accessed my page from Firefox for the first time and realized it doesn't work on it, and most likely not on explorer either. border: 1px solid #E68D29; outline-color: -webkit-focus-ring-color; outline-offset: -2px; outline-style: auto; outline-width: 5px; I had copy pasted it from another page so I'm not quite sure how it works. What is the equivalent for Firefox or Explorer? I mean how do I make a similar glow in other browsers? Thanks

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  • YAHOO.util.Connect.asyncRequest does not work in Safari

    - by 24x7Programmer
    When I request a webpage using YAHOO.util.Connect.asyncRequest in Safari I always get Communication Failure message in callback's failure properties statusText. The same method works in IE. What could be wrong here? Here is the code. When the code is executed I always get two alerts: "Three" and "communications failure undefined" (corresponding to the second alert in the failure part below.) Also when I attach the debugger and put break point in the SAProvision.aspx's page load event, the break point is not hit. So it is sure that in safari the page is not being called. While the same is called when executed from IE. function ProvisionBlade() { var path = "http://localhost/SC/Dashboard/SAProvision.aspx" YAHOO.util.Connect.asyncRequest("POST", path, callbacks1, null); } var callbacks1 = { success: function(o) { var check = "test"; alert(o.responseText); }, failure: function(o) { alert("Three"); alert(o.statusText + ' ' + o.responseText); } }

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  • Wicket and a rich ajax website: easiest way to do it?

    - by Sherkaner
    I want to use Wicket to build an application, but I have some designers that would like to write/maintain the javascript, and they basically expect 1 JS-segment per page, and a global JS-file. I think the most natural way to add javascript in wicket is to add it per component (not per page), which would create problems for those designers (fractioned javascript, and having to write it in java-files). Is there a better way to solve this? (of course, I expect things to work after a partial refresh.) And a second (related) thing they'd like (and I'd like actually) is the possibility to request information in JSON-format through a static link , is this possible in Wicket?

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  • AutoComplete field and IE

    - by user102533
    My web page does not have the autocomplete attribute that would tell browsers not to autocomplete the field. In spite of not having this attribute, IE 8 or Safari (not sure on other browsers) does not autocomplete the page. Autocomplete does work on some sites (such as Gmail) so I am assuming that the browser setting is not causing it? Here's the code: <tr> <td>User Id</td> <td><input name="userId" type="text" id="userId" runat="server" /></td> </tr> <tr> <td>Password</td> <td><input name="password" type="password" id="password" enableviewstate="false" runat="server" /></td> </tr>

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  • How can I improve my select query for storing large versioned data sets?

    - by Jason Francis
    At work, we build large multi-page web applications, consisting mostly of radio and check boxes. The primary purpose of each application is to gather data, but as users return to a page they have previously visited, we report back to them their previous responses. Worst-case scenario, we might have up to 900 distinct variables and around 1.5 million users. For several reasons, it makes sense to use an insert-only approach to storing the data (as opposed to update-in-place) so that we can capture historical data about repeated interactions with variables. The net result is that we might have several responses per user per variable. Our table to collect the responses looks something like this: CREATE TABLE [dbo].[results]( [id] [bigint] IDENTITY(1,1) NOT NULL, [userid] [int] NULL, [variable] [varchar](8) NULL, [value] [tinyint] NULL, [submitted] [smalldatetime] NULL) Where id serves as the primary key. Virtually every request results in a series of insert statements (one per variable submitted), and then we run a select to produce previous responses for the next page (something like this): SELECT t.id, t.variable, t.value FROM results t WITH (NOLOCK) WHERE t.userid = '2111846' AND (t.variable='internat' OR t.variable='veteran' OR t.variable='athlete') AND t.id IN (SELECT MAX(id) AS id FROM results WITH (NOLOCK) WHERE userid = '2111846' AND (t.variable='internat' OR t.variable='veteran' OR t.variable='athlete') GROUP BY variable) Which, in this case, would return the most recent responses for the variables "internat", "veteran", and "athlete" for user 2111846. We have followed the advice of the database tuning tools in indexing the tables, and against our data, this is the best-performing version of the select query that we have been able to come up with. Even so, there seems to be significant performance degradation as the table approaches 1 million records (and we might have about 150x that). We have a fairly-elegant solution in place for sharding the data across multiple tables which has been working quite well, but I am open for any advice about how I might construct a better version of the select query. We use this structure frequently for storing lots of independent data points, and we like the benefits it provides. So the question is, how can I improve the performance of the select query? I assume the nested select statement is a bad idea, but I have yet to find an alternative that performs as well. Thanks in advance. NB: Since we emphasize creating over reading in this case, and since we never update in place, there doesn't seem to be any penalty (and some advantage) for using the NOLOCK directive in this case.

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  • CSS optimization - extra classes in dom or preprocessor-repetitive styling in css file?

    - by anna.mi
    I'm starting on a fairly large project and I'm considering the option of using LESS for pre-processing my css. the useful thing about LESS is that you can define a mixin that contains for example: .border-radius(@radius) { -webkit-border-radius: @radius; -moz-border-radius: @radius; -o-border-radius: @radius; -ms-border-radius: @radius; border-radius: @radius; } and then use it in a class declaration as .rounded-div { .border-radius(10px); } to get the outputted css as: .rounded-div { -webkit-border-radius: 10px; -moz-border-radius: 10px; -o-border-radius: 10px; -ms-border-radius: 10px; border-radius: 10px; } this is extremely useful in the case of browser prefixes. However this same concept could be used to encapsulate commonly-used css, for example: .column-container { overflow: hidden; display: block; width: 100%; } .column(@width) { float: left; width: @width; } and then use this mixin whenever i need columns in my design: .my-column-outer { .column-container(); background: red; } .my-column-inner { .column(50%); font-color: yellow; } (of course, using the preprocessor we could easily expand this to be much more useful, eg. pass the number of columns and the container width as variables and have LESS determine the width of each column depending on the number of columns and container width!) the problem with this is that when compliled, my final css file would have 100 such declarations, copy&pasted, making the file huge and bloated and repetitive. The alternative to this would be to use a grid system which has predefined classes for each column-layout option, eg .c-50 ( with a "float: left; width:50%;" definition ), .c-33, .c-25 to accomodate for a 2-column, 3-column and 4-column layout and then use these classes to my dom. i really mislike the idea of the extra classes, from experience it results to bloated dom (creating extra divs just to attach the grid classes to). Also the most basic tutorial for html/css would tell you that the dom should be separated from the styling - grid classes are styling related! to me, its the same as attaching a "border-radius-10" class to the .rounded-div example above! on the other hand, the large css file that would result from the repetitive code is also a disadvantage so i guess my question is, which one would you recommend? and which do you use? and, which solution is best for optimization? apart from the larger file size, has there even been any research on whether browser renders multiple classes faster than a large css file, or the other way round? tnx! i'd love to hear your opinion!

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  • Indexing Bilingual Sites

    - by Affar
    Hi all I have a site that supports two languages. The way the user changes the language is by clicking on a language link that will change his session language from A to B and return him to the same page. The problem that I am facing is that Google doesn't index the other language since it is seeing that the language link is the same as the page link but with changes in the parameters. So is there a way to inform google of the language, or should I add the language in the url, i.e. www.example.com/A/home?

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  • Navigation Dropdown Text Color doesn't work in FF and IE

    - by Genadinik
    Hello, I was able to get the navigation dropdown to show the letters in a different color from the background (white in this case) in Chrome browser. But when I view the same page in IE or FF, the whole background is just all green. Here is an example of such a page: http://www.comehike.com/hikes/hikes_and_groups.php And here is the CSS code that makes the color show up white in Chrome navigation li li a {color:#white; text-decoration:none;} To see the difference, just mouse over the top right where it says "community" or "hikes" Thanks, Alex

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  • global applied stylesheet link on debian box

    - by James
    Hi there, Having some trouble identifying what is wrong with my link to an external CSS stylesheet... I am using a debian box to host some things... including a file i am accessing page.py which is located in /var/www/cgi-bin. I need this page to link to a css file which currently has the pathname /var/www/styles.css. Now I know I could link as: <link rel="stylesheet" href="**../styles.css**" type="text/css"> and the problem is solved but I would rather have a 'global' link, that I can use in other py files elsewhere in my filesystem and they will all point to /var/www/styles.css The information I have searched suggests that <link rel="stylesheet" href="**/var/www/styles.css**" type="text/css"> should work fine... but it doesn't. I have tried multiple combinations of everything I know but it doesn't seem to link as I would expect. Can anyone point me in the right direction?

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  • How to peform an external request in Kohana 3?

    - by alex
    I've always used cURL for this sort of stuff, but this article got me thinking I could request another page easily using the Request object in Kohana 3. $url = 'http://www.example.com'; $update = Request::factory($url); $update->method = 'POST'; $update->post = array( 'key' => 'value' ); $update->execute(); echo $update->response; However I get the error Accessing static property Request::$method as non static From this I can assume it means that the method method is static, but that doesn't help me much. I also copied and pasted the example from that article and it threw the same error. Basically, I'm trying to POST to a new page on an external server, and do it the Kohana way. So, am I doing this correctly, or should I just use cURL (or file_get_contents() with context)?

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  • Secure to store an ID in an ASP.NET control ID?

    - by Curtis White
    I'm auto-generating a form in my ASP.NET page. This is already tested and working. I want to know if: If there are any security problems with storing the database ID as part of my controls ID? I can see think of 2 issues: the id will be visible in page source (not really important in this case), and the possibility someone could change the name of the control somehow? This second possibility is more serious. Is this a potential problem and how to void it? If there would be a better preferred way to associate a unique data with any type of control? Is it possible to store a custom item in the viewstate for the control?

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  • Rewriting URL in AJAX application

    - by Artem Moskalev
    I am making a simple online application. I have a navigation bar with a few buttons and one "div" into which all the new contents will be loaded dynamically i.e. when I click "About", it will load the page parts into the "div" without reloading the whole page with .load() function. The problem is: what if I need to give a link to the Documents section of my web site, or the user wants to store this kind of link, the url is not rewritten when browsing my site. when the user stores the default link it will always link him to the default "Home" part. How can I rewrite the URL and what is the most correct way to do this?

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  • Apache2 on Ubuntu Server w/ CGI, FastCGI, mod_php

    - by illegal3alien
    I've looked at various websites on configuring Apache with cgi and can't get mod_fcgid to work. It works fine using mod_php5, but I wanted to compare performance using cgi and fastcgi. I tried methods using FGCIWrapper among various other techniques and the only one that didn't result in an unlogged 403 or download of the file was using "Action application/x-httpd-php /usr/bin/php-cgi" When trying to configure mod_fcgid the file normally just started a download of an unprocessed file. I used wget to check headers and type was "application/x-httpd-php" At one point I was able to get to the page, but it resulted in a 403, which was listed in access.log, but not error.log (I was told it should be in there too) I tried to get it working on a fresh install of Ubuntu Server 10.04 LTS and 10.10 and had the same results on both, so I'm not doing something correctly in terms of configuration. I tried virtualmin and could only get mod_php to work. The page just prompted a download when selecting cgi or fcgi from the control panel.

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  • Using Lambda Statements for Event Handlers

    - by lush
    I currently have a page which is declared as follows: public partial class MyPage : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { //snip MyButton.Click += (o, i) => { //snip } } } I've only recently moved to .NET 3.5 from 1.1, so I'm used to writing event handlers outside of the Page_Load. My question is; are there any performance drawbacks or pitfalls I should watch out for when using the lambda method for this? I prefer it, as it's certainly more concise, but I do not want to sacrifice performance to use it. Thanks.

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  • How can I allow only privledged users to download a pdf with php?

    - by ThinkingInBits
    Lets say I have some pdf files stored on my server and I only want to allow a person who's paid have access to download a particular pdf. So for an example, let's say I have a bunch of e-books. The only way a user would be able to download e-book A is if his account contains the right credentials for that particular book. What's the best way to accomplish this? Any ideas/advice on how to improve my idea are greatly appreciated! My current idea: A user places an order Upon success, a new folder would be created by their /account_num/order_id/ A copy of the particular file would be stored in this directory Have php generate an .htaccess that would only allow access from a url that contains a random hash embedded into it. The only way a user would be able to access this random hashed page is if they are signed in as the right user, and the hash matches up with the hash stored in the database, otherwise they are redirected to home page.

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  • Using Gridview in aspx.vb (code-behind)

    - by Tauron Xavenberg
    I need to create a gridview based on 2 different datasources: main and sub-cathegory. And I need to list them like below: Productinfo sub-product 1 sub-product 2 Productinfo sub-product 1 sub-product 2 sub-product 3 sub-product 4 Etc... the thing is that both the "productinfo" and the "sub-product" are dynamic as the number of both can vary, so I would have to create a gridview within a gridview, plus the necessary filters too. For this reason I thought it was best to do it all in code-behind, but I can't understand how to use the gridview-class in codebehind and bind it so that it actually shows something in the main aspx page. Basically what I'm asking for is a simple example of how, when you have nothing but <asp:GridView/> in the aspx -page, can you add components to it and show it, from code-behind (vb)? Thanks.

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  • How shared hostings, domain names and DNS work together?

    - by vtortola
    Hi, I 've this little doubt but I couldn't find information about it, probably because I'm not searching the correct thing. When a browser ask for "www.mydomain.com", the DNS server returns an IP Address, then the browser go there... but what does happen then? I mean, that IP address could be a shared hosting that contains hundreds of web pages and domains, so how does it knows where it have to go? Is something that the web server does? is it something that I could implement in a web application? I mean, for example I have a web application that contains accounts, and each account has a default web page. You could access that page passing the account namne, for example "www.mydomain.com/myaccount", but now I want to register "www.myaccount.com" and then it will get the "www.mydomain.com/myaccount" content. Is it possible? Kind regards.

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  • jquery .before() if class isn't present

    - by Afonso Gomes
    Using pagination, I have a div structure like so in the first page: <div class="ctema">...</div> <hr /> <div class="ctema">...</div> <hr /> <div class="ctema">...</div> <hr /> But with a jquery script to fetch content via AJAX... the following pages have only: <div class="ctema">...</div> <div class="ctema">...</div> <div class="ctema">...</div> I tried this: $('.ctematicas').before('<hr />'); But this doesn't checks if the HR tag is there or not and after 5 dynamic reloads In the first page I have 5 HR in a row ... How can I check if the HR tag is present between classes CTEMA and add one if not present?

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  • connection between two android phones

    - by user1770346
    I m not able to connect my android device to other device(either android or non-android)via bluetooth.After detecting the devices from my android phone,i m not able to connect it to selected device from the list.The main problem is it not showing connectivity conformation message in selected device from list.How can i recover from this problem. please help me.Thanks My code for searching device is:(BluetoothSearchActivity.java) public class BluetoothSearchActivity extends Activity { ArrayAdapter<String> btArrayAdapter; BluetoothAdapter mBluetoothAdapter; TextView stateBluetooth; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); ImageView BluetoothSearchImageView=new ImageView(this); BluetoothSearchImageView.setImageResource(R.drawable.inner1); setContentView(BluetoothSearchImageView); setContentView(R.layout.activity_bluetooth_search); mBluetoothAdapter=BluetoothAdapter.getDefaultAdapter(); ListView listDevicesFound=(ListView) findViewById(R.id.myList); btArrayAdapter=new ArrayAdapter<String> (BluetoothSearchActivity.this,android.R.layout.simple_list_item_1); listDevicesFound.setAdapter(btArrayAdapter); registerReceiver(ActionFoundReceiver,new IntentFilter(BluetoothDevice.ACTION_FOUND)); btArrayAdapter.clear(); mBluetoothAdapter.startDiscovery(); listDevicesFound.setOnItemClickListener(new OnItemClickListener() { public void onItemClick(AdapterView<?> parent,View view,int position,long id) { Intent i6=new Intent(getApplicationContext(),AcceptThread.class); startActivity(i6); } }); } private final BroadcastReceiver ActionFoundReceiver=new BroadcastReceiver() { @Override public void onReceive(Context context, Intent intent) { // TODO Auto-generated method stub String action=intent.getAction(); if(BluetoothDevice.ACTION_FOUND.equals(action)) { BluetoothDevice device=intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE); btArrayAdapter.add(device.getName()+"\n"+device.getAddress()); btArrayAdapter.notifyDataSetChanged(); Log.d("BluetoothSearchActivity",device.getName()+"\n"+device.getAddress()); } } }; @Override protected void onDestroy() { super.onDestroy(); unregisterReceiver(ActionFoundReceiver); } @Override public boolean onCreateOptionsMenu(Menu menu) { getMenuInflater().inflate(R.menu.activity_bluetooth_search, menu); return true; } } and my connectivity code is:(AcceptThread.java) class ConnectThread extends Thread { private static final UUID MY_UUID=UUID.fromString("fa87c0d0-afac-11de-8a39-0800200c9a66"); private static final String ConnectThread = null; BluetoothSocket mSocket; BluetoothDevice mDevice; BluetoothAdapter mBluetoothAdapter; public ConnectThread(BluetoothDevice device) { BluetoothSocket temp=null; mDevice=device; try{ temp=mDevice.createRfcommSocketToServiceRecord(MY_UUID); }catch(IOException e) { } mSocket=temp; } public void run() { mBluetoothAdapter.cancelDiscovery(); try{ Log.i(ConnectThread,"starting to connect"); mSocket.connect(); }catch(IOException connectException) { Log.e(ConnectThread,"connection Failed"); try{ mSocket.close(); }catch(IOException closeException){ } return; } } public void cancel() { try{ mSocket.close(); }catch(IOException e) { } } } public class AcceptThread extends Thread{ private static final String NAME="BluetoothAcceptThread"; private static final UUID MY_UUID=UUID.fromString("fa87c0d0-afac-11de-8a39-0800200c9a66"); BluetoothServerSocket mServerSocket; BluetoothAdapter mBluetoothAdapter; public AcceptThread() { BluetoothServerSocket temp=null; try{ temp=mBluetoothAdapter.listenUsingRfcommWithServiceRecord(NAME,MY_UUID); }catch(IOException e){ } mServerSocket=temp; } public void run() { BluetoothSocket socket=null; while(true) { try{ socket=mServerSocket.accept(); }catch(IOException e) { break; } if(socket!=null) { try { mServerSocket.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } break; } } } public void cancel() { try{ mServerSocket.close(); }catch(IOException e) { } } }

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  • Dropdown binding and postbacks - ASP.NET

    - by DotnetDude
    I have a rather complex page. The ASPX page loads a user control which in turn loads a child User control. Parent Control protected override void OnInit(EventArgs e) { //Loads child control } In the child user control, I use custom control that inherits from System.Web.UI.HtmlControls.HtmlSelect ASCX: <cust:CustDropDownList id="ctlDdl" runat="server"/> ASCX.CS protected void Page_Load(object sender, EventArgs e) { //Binds CtlDdl here } When the user clicks on the Save button, the controls get user controls get dynamically reloaded, but Iose the value the user has selected in the dropdown. I run into the chicken and egg problem here. I think I need to bind the ctlDdl only on if its not a postback, but that results in the dropdown not getting populated. If I bind it everytime, then i lose user's selection EDIT: Can someone respond to my comment to Jonathan's answer? Thanks

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  • Why are my JavaScript variables not persisting across functions?

    - by Eric Belair
    I have the following JavaScript in my HTML page referencing an HTML form on the page: <script type="text/javascript"> <!-- var myForm = document.myForm; function validateForm() { if (myForm.myInput == "") alert("Please input some text."); return false; } myForm.submit(); } function showFormInput() { myForm.reset(); document.getElementById('myInput').style.display = 'inline'; } //--> </script> ... <form name="myForm" id="myForm" action="..." method="post"> <input id="myInput" name="myInput" type="text" value="" style="display:none;" /> </form> Both functions are throwing an exception when trying to access the variable myForm, saying that "myForm is null or not an object". Why is this occurring?

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