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• Use Javascript variable in PHP

  - by Rhepungus

  I have seen some answers to this question in previous posts, but no one has given a real working example, just psuedo code. Has anyone ever done this before? Basically, what i have is a variable in javascript (jquery), and i want to use this variable to drive a query (for an overlay window) i am going to run in php. From what i have read you can do this using an ajax call to the same page so it doesnt refresh itself, but i must be missing something because i can't get it working... Any examples out there? Thanks.

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• Javascript Autocomplete Text

  - by WPS

  Hi All, I need to implement an autocomplete text field using JavaScript and JSF. When the user types some character in a text field, I need to make an AJAX request and get the values based on the values entered. I've an input text field, on "keyup" I'm triggering a function which submits the value to the server side. var timeoutid = 0; function intitiateTypeAhead(){ clearTimeout(timeoutid); if (document.getElementById("inputText").value.length >= 2) { timeoutid = setTimeout('clickButton', 500); } return false; } function clickButton(){ //submits the value to the server } <h:inputText id="inputText" onkeyup="intitiateTypeAhead()"></h:inputText> This works properly, but certain times the request is made for each character entered by the user. I'm not sure if there is anything wrong with the implementation. Can someone please help me to fix this?

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• Update FB:Like URL Dynamically using JavaScript

  - by br4inwash3r

  i'd like to change the URL to like of an FB:Like button dynamically using javascript. right now i've been able to change the href attribute of the fb:like tag (i've pasted the code below). but that doesn't work. perhaps i have to re-initiate the FB:Like button, but so far i can't figure out how.. function update_share(container, url) { // update fb:like href value var container = container[0] || document.body; var button = container.getElementsByTagName('fb:like'); button[0].setAttribute('href', url); } any help would be appreciated. thx..

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• Getting a drop down box value with javascript?

  - by ritch

  I'm trying to get the value currently selected and I simply want to alert it. I current have this: <script type="text/javascript"> alert(forms.elements('sets').value); </script> HTML: <form> <select name="sets"> <option value="1">1 Set</option> <option value="2">2 Sets</option> <option value="F">3 Sets</option> </select> </form>

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• javascript welcoming msgbox problem

  - by shouq

  hey... i'm doing my html and javascript class project and i want to have a msgbox welcoming the visitor asking for his name and then a welcoming msgbox shows up saying "hello (the name added)" i know how to do that but my only problem is that if i pressed back and went to the homepage of my website again, the msg will show up again asking for my name is there anyway to prevent this from happening? seriously don't want the visitor to wite his name each time he goes to the home page please help this is the code i'm using: <script> response = window.prompt("Welcome!","Please enter your name"); window.alert("hello " + response); </script> please help

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• (PHP)how to hold javascript alertbox on screen

  - by Piyush

  when user changes password I want to show message "Successfully changed!" and when user clicks on OK button of alert box I call logout.php and force user to login with new password.But the problem is PHP header() is not waiting for alertbox and directly goes to logout.php. my code- if($count==1) { $sqlchange="UPDATE $tbl_name SET password='$newpassword' WHERE userId='$myusername'"; unset($result); $result=mysql_query($sqlchange,$link); if($result>0) { ?> <script type="text/javascript"> alert("Your Password has been changed successfully.Please login again."); </script> <?php header("location:logout.php"); exit; } else {....

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• Javascript: Perform function on form submit

  - by flight643

  Hopefully this is a pretty simple question! I've got the code working in jQuery to listen for a specific form on a page to be submitted and perform an alert when it is.. I.e.: The form itself doesn't have a name so I am targetting the form within a specific form ID. $("#content form").submit(function() { alert("lorem ipsum dolor?"); }); What would be the syntax for performing this in javascript alone without using jquery? For example, I have this code (below) and just am unsure of how to listen for the form to be submitted to perform an action.. var submitform = document.getElementById("content").getElementsByTagName("form"); Thanks!

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• Handling the distinction between undefined- and null-parameters in JavaScript

  - by Jakob

  I know very well that null and undefined are distinct in JavaScript. However, I can't seem to decide whether or not use that fact when my own functions are passed one of those as its argument. Or, expressed in a different way, should myFoo(undefined) return the same thing as myFoo(null) or is everything fine if it doesn't? Or, in yet another case, since myBar(1, 2, 3) is the same thing as myBar(1, 2, 3, undefined, undefined), should myBar(1, 2, 3, null, null) return the same thing as myBar(1, 2, 3)? I feel that there's potential for confusion in both cases and that a library should probably follow a convention when handling null/undefined. I'm not really asking for personal opinions (so please express those as comments rather than answers). I'm asking if anyone knows if there is a best practice that one should stick to when it comes to handling this distinction. References to external sources are very welcome!

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• How to count the number of listitems in an asp.bulletedlist with JavaScript

  - by Andy5

  Hi I have an asp:bulletedlist control, which sits inside a div tag, and I need to count the number of list items inside the control. Searching the internet, and noting the fact the html given back by the items is a list i.e. <li>, I thought I could use an example of: var listcontrol = document.getElementById('BulletedList1'); var countItems = listcontrol.getElementByTagName('li').length; However, when I do this, it throws and error saying that no object exists for this control. So, my problem is, and because I must do this clientside because I want to use this to set the height of the div tag, is how do you count the number of items inside a asp:bulletedlist control with javascript?

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• Combining Arrays in Javascript

  - by Bigbohne

  Maybe it's to late in germany (1:04AM) or I'm missing something... How can I combine these two arrays: a = [1, 2, 3] and b = [a, b, c] so that i get: [[1, a], [2, b], [3, c]] Thank and ... spend more time sleeping! :) Edit: Ok, i see this function i called "zip". +1 Knowledge And there is no builtin function in Javascript for this. +1 Knowledge And I should have said that the arrays are equal in length. -1 Knowledge ... = positiv day. Thx

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• Concatenating string with number in Javascript

  - by Sparky

  I'm trying to create a simple calculator in Javascript. I have an array named expression chunk[0] = 12 chunk[1] = + (the "+" sign) chunk[1] = 5 I used a for loop to loop through the chunks (chunk[]) and join then into a single expression as follows:- equation = ""; // To make var equation a string for(i = 0; i <= length; i++) { equation = equation + expression[i]; alert(expression[i]); } alert(equation); alert(expression[i]) showed values 12, + and 5. But alert(equation) showed 125 (instead of "12+5"). I need the variable equation to be "12+5" so that I can later call eval(equation) and get the value of 12+5. What am I doing wrong here?

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• PHP attempting to make JavaScript friendly timestamp, failing, returns 1.34899651119E+12

  - by chris

  Well, not sure whats going on. I have been trying to follow by examples I have found here on stack, on google, even an answer someone gave me a week+ ago, which unfortunately I wasn't able to test until today. Anyway I am attempting to generate a javascript friendly timestamp via php so I can get my times synced up. The best logic I could find overall was something dealing with microtime. However that doesn't seem to work as expected, not even in the slightest. Right now I am using microtime(true)*1000; and am getting 1.34899651119E+12 for the result. Did I some how manage to mess up that one tiny line of code, Im not sure.

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• javascript show/hide with memory

  - by gloris

  Hi, i have this show/hide menu. It is possibly this menu make with memory?( I open sub menu, refresh page and this sub menu stil open. ) <script type="text/javascript"> function change(id){ ID = document.getElementById(id); if(ID.style.display == "") ID.style.display = "none"; else ID.style.display = ""; } </script> <div onclick="change(5)" style="cursor: hand"> <a href = "#">+</a>News </div> <div style="display: none" id="5"> News1<br/> News2<br/> </div>

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• Global JavaScript Variable Scope: Why doesn't this work?

  - by CoryDorning

  So I'm playing around with JavaScript and came across what I think to be an oddity. Is anyone able to explain the following? (i've included the alerted values as comments) Why is the first alert(msg) inside foo() returning undefined and not outside? var msg = 'outside'; function foo() { alert(msg); // undefined var msg = 'inside'; alert(msg); // inside } foo(); alert(msg); // outside Considering these both work fine: var msg = 'outside'; function foo() { alert(msg); // outside } alert(msg); // outside and: var msg = 'outside'; function foo() { var msg = 'inside'; alert(msg); // inside } alert(msg); // outside

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• Javascript function programming — receiving elaborate parameters

  - by Barney

  I'm writing a Javascript function that would manipulate an array written on-the-fly and sent as a parameter. The function is written as follows: function returnJourney(animation,clean){ var properties = {}; // loads of other inane stuff for(i in animation[0]) properties[animation[0][i]] = animation[0].i; // heaps more inane stuff } The animation in question is a set of parameters for a jQuery animation. Typically it takes the format of ({key:value,key:value},speedAsInteger,modifierAsString). So to kick off initial debugging I call it with: returnJouney(({'foo':'bar'},3000),1); And straight off the bat things are way off. As far as I see it this would have returnJourney acknowledge clean === 1, and animation being an array with an object as its first child and the number 3000 as its second. Firebug tells me animation evaluates as the number 3000. What am I doing wrong?

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• JavaScript: Text "submit" link?

  - by Tedd

  I have the the following code and want to use a hyper link to submit my form. <form name="form_signup" id="form_signup" method="post" action="/" enctype="multipart/form-data"> ... <input type="submit" value="Go to Step 2" name="completed" /> or <a onclick="javascript:this.form.submit();">Proceed without uploading</a></span> </form> However, my hyperlink submit doesn't work. It just keeps me on the same page. Question: any idea why my link submit text doesn't work?

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• How to export javascript generated report to pdf?

  - by Parhs

  Hello... I made a reporting engine with javascript for my project... The problem is with printing.. Although with page-break and css i can produce a good looking report, i want to export that report to a pdf in order to be printed better without ,the url,page title and other stuff that browsers add. Note in Chrome there isnt page setup!!! I am using java for server side. i think sending via ajax the Html of the report somehow and return a url for the pdf report maybe... i am looking for a good tool for this thank you

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• Styled Javascript Popup that Conncects to Database

  - by user269799

  I want to create a javascript popup box that contains text fields. I want to be able to style this box - using CSS - and I want the textfield entries to be Inserted into a MySQL database. Is this possible? I would be familiar with doing this through web forms and server side scripting but I need it to be a bit more client side this time to make things seem a bit faster. I am thinking I may need to learn some AJAX but any pointers would be a help. GF

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• HTML, Javascript, PHP and Actionscript all in one Eclipse install (2010)

  - by ThunderChunky_SF

  I just wanted to poll the community and see which plugins people are currently using to get all of these different technologies running in Eclipse. I saw this thread which mentioned Spket & WPT: http://stackoverflow.com/questions/1575617/eclipse-which-plugins-for-html-javascript But I noticed that Spket doesn't seem to have been updated since October of 2009 so I'm wondering if it's still a good tool to use. I'm not sure what would be best for PHP since it seems like some of the tools are disjointed at the moment. For Actionscript I know I can just install the latest Flash Builder plugin and be done. Any suggestions are greatly appreciated.

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• javascript : key validation

  - by Geetha

  hi all, im using javascript to validate keys in textbox. it is not working :( function numeric(e) { return ((e.keyCode == 8) || (e.keyCode == 9) || (e.keyCode > 47 && e.keyCode < 58) || (e.keyCode > 36 && e.keyCode < 41) || (e.keyCode == 46) || (e.keyCode > 95 && e.keyCode < 106) || e.keyCode == 190 || e.keyCode == 110); } help me...

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• JavaScript Prototype and Encapsulation

  - by Adam Davies

  Sorry I'm probably being a realy noob here...but: I have the following javascript object: jeeni.TextField = (function(){ var tagId; privateMethod = function(){ console.log("IN: privateMethod"); } publicMethod = function(){ console.log("IN: publicMethod: " + this.tagId); } jeeni.TextField = function(id){ console.log("Constructor"); this.tagId = id; } jeeni.TextField.prototype = { constructor: jeeni.TextField, foo: publicMethod }; return jeeni.TextField; }()); Now when I run the following code I get the corresponding result: var textField1 = new jeeni.TextField(21); // Outputs: Constructor textField1.foo(); // Outputs: IN: publicMethod: 21 console.log(textField1.tagId); // Outputs: 21 console.log(textField1.privateMethod); // Outputs: undefined So my question is why is privateMethod hidden and tagId is not. I want them both to be private scope. Please help a noob. Thanks

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• Javascript on mobile os, android and ipad

  - by albanx

  Hello I am trying to do a javascript function compatible on android and ipad, but i notice that android doesnt support ongesture** events? 1.It's really true? .ongesturestart=function(e){ .ongesturechange=function(e){ .ongestureend=function(e){ 2.Since I cant buy niether an Android system nor a Ipad, is there any Android/Ipad simulator for pc/windows/linux around the web? I need them for developenig and simulating web application based on touch/gestures events. 3.Is there possible that google hasnt develop chrome for android platform? and firefox for android/Ipad? Thanks

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• How to create url preview in javascript?

  - by Razor Storm

  Can someone help me with creation of a url preview script in javascript? What I mean is this. Say I have a link on my site, I want the user to be able to mouse over the link, and have an image pop up that shows what the target of the link looks like. Don't worry about the css, I got that working, I just need the actual script to show the image. Currently I am doing it by showing up an iframe that actually renders the page, but this is not scalable and looks ugly. No, having the page display premade images is not an option, since the links will be linking to dynamically generated user content. thanks

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• copy - paste in javascript

  - by Dumbledore of flash

  I have this code <input name="mpan[]" value="" maxlength="2" size="2"> <input name="mpan[]" value="" maxlength="2" size="3"> <input name="mpan[]" value="" maxlength="2" size="3"> <input name="mpan[]" value="" maxlength="2" size="12"> What I have to do is I am provided with a large key for example 0380112129021. When I do Ctrl+C on that key and select any box and press Ctrl+V, the number automatically get pasted in different box, for example: first input box gets 03, next gets 801, next gets 112 and rest gets pasted on last one 129021.how do i achive this from javascript

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• Extracting the most duplicate value from an array in JavaScript (with jQuery)

  - by TK

  I have several array to deal with. I need to extract the most duplicate value from each array. From [3, 7, 7, 7], I need to find the value 7. Each array size is 4. For now, I don't have to think about when the most duplicate values are more than one such as [3, 7, 7, 7]. All the values are a number. I looked around the web. I found several ways to make an array to become uniq(). But I haven't found a way to get the duplicate value. I am using jQuery, but raw JavaScript is fine for this task.

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