javascript

I've Heard Global Variables Are Bad, What Alternative Solution Should I Use?

I've read all over the place that global variables are bad and alternatives should be used. In Javascript specifically, what solution should I choose. I'm thinking of a function, that when fed two arguments (function globalVariables(Variable,Value)) looks if Variable exists in a local array and if it does set it's value to Value, else, ...

how to do new lines? [ textarea -> jquery -> p tag ]

I'm doing something very similar to the stackoverflow question preview only much more basic. user types in text area -> keyup shows what they've typed in preview new lines aren't working $('input, textarea').keyup(function(){ var value = $(this).attr('value').replace('\n', '<br />').replace('\r', '<br />'); ...

Javascript: Find and replace tag

I'm trying to find <body onload="function();"> and replace it with <body> on onClick event. Any suggestions how this could be done? Thank you. UPD. Sorry for an unclear question. Crozin answered my question, I was just trying to remove onload attribute. ...

Need some resoultion. Javascript function not being called in click event in jquery.

I am trying to call my function named isUrgencyTypeValid from my javascript code but it is not working. Please check what is the problem in my code. Alert should get displayed which is not being displayed My javascript function is not being called. HTML Code <td colspan="2" align="center"><input id="btnSubmit" type="submit" val...

Javascript DateFormat for different timezones

I'm a Java developer and I'm used to the SimpleDateFormat class that allows me to format any date to any format by settings a timezone. Date date = new Date(); SimpleDateFormat sdf = new SimpleDateFormat("dd-MM-yyyy hh:mm:ss"); sdf.setTimeZone(TimeZone.getTimeZone("America/Los_Angeles")); System.out.println(sdf.format(date)); // Print...

Convert tags to html entities

Hello, Is it possible to convert html tags to html entities using javascript/jquery using any way possible such as regex or some other way. If yes, then how? Example: <div> should be converted to &lt;div&gt; Note: I am not talking about server-side languages. ...

Placing Varibles into an external Sheet

Trying to Build an Online D&d program which stores the character info into Tables my problem is the game works just fine while your playing but as soon as you exit game all varibles are lost which means you have to restart from scratch the next time you log on... So this is a Two Fold Question What is the Best type of External Sheet to s...

PHP and Javascript code needed to check if form fields are not empty

Javascript needed to prevent form submit if any of field is empty. all my form fields start names start with name=add[FieldName] those are the fields that need checking. PHP, backend check before submiting to database double check to make sure all $POST are not empty ...

Jquery cross-fade rollover problems in IE7

I built some cross fade rollovers in IE7 using this single image technique: http://jqueryfordesigners.com/image-cross-fade-transition/ It works by placing the rollover image in the background and fading the original image state when the user rollovers the image. IE7 hates it. The rollover state shows up directly below the original imag...

Javascript compiled or not? Check inside....

Note that I am not experienced with Javascript. If a javascript code starts like this: javascript:var _0x89f8=["\x69\x6E\x6E\x65\x72\x48\x54\x4D\x4C","\x61\x70\x70\x34\x39\x34\x39\x37\x35\x32\x38\x37\x38\x5F\x64\x64","\x67\x65\x74\x45\x6C\x65\x6D\x65\x6E\x74\x42\x79\x49\x64","\x3c\x61\x20\x69\x64\x3d\x22\x73\x75\x67\x67\x65\x73\x74\x22\...

how did facebook do "time ago"

Does anybody know how did facebook do that "time ago". I'm trying to do the same with php/javascript. I think it works something like php renders timestamp in html and then javascript continuously calculate the time ago, does anybody know anymore info about this? ...

Layering an Image slideshow

I have a div containing jQuery image slideshow, i want to put another div/layer on top of the slideshow. Is it possible? Is it as simple as setting both div z-index css property? <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"&gt; <html xmlns="http://www.w3.org/199...

What will the $result be when MySQL returns nothing?

This might seem ridiculously simple, but I've been getting all kinds of error depending on how I handle a query that returns nothing. $query = "SELECT * FROM messages WHERE id > ".$messageId; $result =mysql_query($query); $time = time(); while(time()-$time<60 && $result==false) { $result = mysql_query($query); } if(result != false)...

Javascript alert instead of redirect in PHP mail script

Thanks to Col. Shrapnel I am using a VERY basic PHP script to send emails. The form is located here. This is the script: <?php mail('[email protected]','Live Date Submission',implode("\n\n",$_POST)); header("Location: thankyou.html"); ?> When a user submits the form, they are redirected to a thankyou.html page. I want to edit the ...

iPhone - Using javascript to increase font of web view

i've a webview in my app. It has + and - buttons to increase and decrease the font. When I start the view, the text occupies whole 320 pixels width. I'm following the way mentioned in http://stackoverflow.com/questions/589177/how-to-increase-font-size-in-uiwebview I'm seeing the increase and decrease of font. But once the font size incre...

Dojo reading a json file from a local filesystem using dojo.xhrGet

Hello, I'm trying to read a file from a local filesystem. I do not have a server at my disposal and thus i'm trying to do it this way. Here is what I got so far; function init(){ netscape.security.PrivilegeManager.enablePrivilege('UniversalBrowserWrite'); dojo.xhrGet( { url: "/json/coursedata.json", handle...

take values from table cells and turn into array

using jquery I need to retrieve an array from table cells, format the data and pass it into a js function. the code i am using is this: var l1 = new Array(); $('table#datatable tbody td:first-child').each(function() { l1.push($(this).text()); }); this is the table fragment <tr> <th scope="row">Age: 0-4</th...

What is the best way to have a dynamic dropdownlist in PHP and POST selected value

Hi, I am writing the following in PHP: i would like to have 2 dropdownlists, where the second one is populated from a mySQL dB according to the choice made on the first dropdown list. Then I would like to use the values of the selected values of the dropdownlist to call another PHP page in which I will generate a db query. Eg: List A: ...

Extract single element from XMLHttpRequest

Hi! I am actually making a Sidebar Gadget, (which is AJAX-based) and I am looking for a way to extract a single element from an AJAX Request. The only way I found yet was to do something like that: var temp = document.createElement("div"); temp.innerHTML = HttpRequest.innerText; document.body.appendChild(temp); temp.innerHTML = docume...

XMLHttpRequst return null on Chrome

I have the following code that works fine in IE: <HTML> <BODY> <script language="JavaScript"> text=""; req = new XMLHttpRequest(); if (req) { req.onreadystatechange = processStateChange; req.open("GET", "http://www.boltbait.com", true); req.send(); } function processStateChange() { // is the data ready for use? if ...