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• JavaScript function to validate an integer value

  - by Psyche

  Hello, I'm building a shopping cart and I would like to use a JavaScript function to validate user input when entering the quantity value in the quantity text input. I would like to allow the entering of integer values only (no floats, no other characters). I know that I can apply this function using onKeyUp event and also I found isNaN() function, but it returns true even for floats (which is not ok). Can you guys help me out with this one? Thanks.

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• How to create a file using javascript in Mozilla Firefox

  - by minu

  Hi, I want to write a function in javascript which creates a file and write some content to it, iam working with firefox, can anybody help me in this case. Thanks...

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• Iframe loaded in javascript

  - by zachary

  I dynamically am changing the location and src of an iframe. Is there an event that will tell me when the page i just put has loaded from javascript? Basically I want to append something to the page but first need to know that everything is loaded.

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• Javascript plugin creation

  - by Aneesh

  How to create a pure JavaScript(without using any library) plugin which looks like: document.getElementById('id').myPlugin(); like jquery ?

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• Brightening an image using styles or Javascript

  - by CP

  Hello All, I would like to brighten an image on my webpage on mouseover using css or javascript. Ive seen some examples using opacity and filters in styles but they dont seem to work for me. Thanks in advance CP

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• What does "with" do in JavaScript?

  - by streetparade

  I saw JavaScript code which begins with with. That's a bit confusing. What does it do and how can it be used correctly? with (sObj) return options[selectedIndex].value;

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• JavaScript Calender in edit item template of datagrid in asp.net

  - by pravakar

  Hi friends, My problem is, i am using a Javascript calender in my datagrid in asp.net and wants to make update the date based on the selection on the calender's date while editing, which is not happening. Can any one help me to solve this problem. Code is as follows <%#Container.DataItem("EventDate")% <%--' Width="80"/  --% ' 

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• Slideshow in Javascript when the image changed is the background image

  - by gnomixa

  The client wants to have a simple slideshow with a little twist: he wants the menu to be on top of the image being changed. what would be the way to achieve this using css and javascript?

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• javascript basics question

  - by refge

  i have this small javascript code which i need some help with. function doFocus(text) { if (text.value == "Enter Name") { text.value = "Student Name -" } } All i need here is when someone clicks on my textbox, the text "Student Name -" should change its color, and should text-align=left. so text.color and text.align or the appropriate sytax.

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• Object window left over in a javascript bookmark

  - by user333578

  Currently I'm using the following as a bookmark in Firefox 3.6.3. It redirects me to the RFC just fine, but the active tab says [object Window]. What do I need to do to get rid of that artifact? javascript:var rfc=prompt("RFC Number");window.open("http://ietf.org/rfc/rfc" + rfc + ".txt")

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• Close button detection using JavaScript

  - by Ajay_kumar

  I want to give an alert using JavaScript when the user clicks the close button of the browser. How do I detect the event?

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• A better javascript to string function?

  - by Jeff

  Before I go and create this myself, I thought I'd see if anyone knows a library that does this. I'm looking for a function that will take something in Javascript, be it an array, an associative array, a number, or even a string, and convert it to something that looks like it. For example: toString([1,2,3]) === '[1, 2, 3]' toString([[1,2], [2,4], [3,6]]) === '[[1,2], [2,4], [3,6]]' toString(23) === '23' toString('hello world') === 'hello world' toString({'one': 1, 'two': 2, 'three': 3}) === "{'one': 1, 'two': 2, 'three': 3}"

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• Convert a Javascript Date format to desired PHP format

  - by Ajith

  How can we convert Wed Jun 09 2010 which is returns from a javascript function and get in a php script.I need to convert this date format to 2010-06-09.Thanks

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• javascript funtion to catch return value

  - by kumar

  hi, I have a funtion like this <script type="text/javascript"> funtion result() { return "string"; } </script> I need to get this string value in to var var gotresult= ???? how to get here that result value

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• Javascript review/refactoring tools

  - by SachinJadhav

  Hi, What are the available javascript review/refactoring tools? Thanks in advance. Thanks and Regards, SachinJadhav.

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• JavaScript split function

  - by lalchand

  i like to split a string depending on "," character using JavaScript example var mystring="1=name1,2=name2,3=name3"; need output like this 1=name1 2=name2 3=name3

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• how can put a javascript variable in img tag

  - by ajithperuva

  I need to put a javascript variable as image source.That is my image tag should be in this format here i am adding my script document.getElementById("pricefilter").innerHTML ='' here variablename carries my image path.How can i put this in double quates.Please help to solve this

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• Javascript Debuuger plugin for eclipse

  - by vineth

  hi , I am new for java and iam doing the project with extjs & JAVA ,i using eclipse version (Eclipse Java EE IDE for Web Developers. Build id: 20100218-1602) . Can any one suggest any javascript debugging plugin for this id or pls provide link.. Thanks in advance

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• Javascript switch vs. if...else if...else

  - by John Hartsock

  Guys I have a couple of questions: Is there a preformance difference in Javascript between a switch statement and an if...else if....else? If so why? Is the behavior of switch and if...else if...else different across browsers? (FireFox, IE, Chrome, Opera, Safari)

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• VB6: assign javascript function to a dom element

  - by Fuxi

  hi, i'm using the mshtml library for parsing out html via MSHTML.HTMLDocument. my question: is there a way to assign a javascript function to a dom element? i've tried something like: div.onmouseover = "function(){alert('mouseover')}" and div.setattribute "onmouseover" , "function(){alert('mouseover')}" without success (no error but no effect either). anyone knows if its possible? thx

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• Are there any (somewhat) advanced mathematics Javascript libraries?

  - by pr1001

  Are there any libraries knocking around that provide any additional general purpose math functions for Javascript? Say things like sums over a range, derivatives, integrals, etc. I can imagine that many things aren't possible, so even libraries that do rough approximations would be interesting. Thanks!

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• javascript error causes page reload?

  - by seanlinmt

  I have been getting some weird page refresh in deployment and I can't seem to find the cause of it or replicate it in development. Is there a way for a javascript error or exception to cause a page reload? Or some tips to help me narrow down the cause?

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• how can i convert a date in javascript to string

  - by scatman

  i have a javascript method that takes a date: convert(new Date("02/20/2010"); how can i let convert return "02/20/2010" as a string?

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• Best Book on HTML, CSS, Javascript, ASP.NET & Ajax

  - by Satyaprakash J

  Hi Which is best book to learn HTML, CSS, Javascript, ASP.NET 3.5 & Ajax? I would like to have a single book covering all the above topics. Thanks Satyaprakash

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• javascript: use getElementsByName for 'this'?

  - by stelmate

  I need to get some children elements and loop over them using inline javascript for a onmouseover event. When I try to use this.getElementsByName I'm getting an error that the object does not support this property. I was under the impression that getElementsByName work for element objects which I thought 'this' would be considered. Anyone have any other ideas on how I can achieve this?

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