pedrocorreia.net - mySnippets

Jquery Cycle Gallery with lazy loading

pc@pedrocorreia.net — Sat, 05 Sep 2009 18:48:18 +0100

Jquery's a powerful javascript Framework and nowadays's a commonly use by web-developers all around de globe. This will be my first snippet using Jquery, as you can easily see by going throughout the javascript-related snippets in this website, I ...

Javascript Encode HtmlSpecialChars

pc@pedrocorreia.net — Thu, 27 Aug 2009 13:34:31 +0100

If you're a PHP web-developer, you're certanily familiar with htmlspecialchars. This is a function that "... convert special characters to HTML entities..." JavaScript doesn't have such functionality in its core, however building one covering the ...

getElementsByClassName by Walking down the DOM

pc@pedrocorreia.net — Sun, 02 Aug 2009 17:18:45 +0100

In JavaScript we have a few methods to get html objects, such as getElementById, getElementsByName, getElementsByTagName, normally these methods will be enough, but what if want to get all elements but by their class name? Well, easy, we build one. ...

Javascript Fade animation

pc@pedrocorreia.net — Sat, 11 Apr 2009 18:44:00 +0100

As you probably know JavaScript has animation capabilities too, I'll talk about that in this snippet, making focus on a fading animation. It'll be a simple fading animation script, but I hope it'll help you in some way. Nowadays with all framework ...

Javascript get mouse coordinates/ position

pc@pedrocorreia.net — Fri, 10 Apr 2009 13:49:10 +0100

Here's a short snippet about mouse coordinates/ position in a webpage. Since different browsers support DOM in different ways, we'll just have to adopt our script to get mouse coordinates, regarding that's equal to all browsers (well, nothing that ...

Javascript Tooltip

pc@pedrocorreia.net — Fri, 10 Apr 2009 00:28:54 +0100

'The tooltip is a common graphical user interface element. It is used in conjunction with a cursor, usually a mouse pointer. The user hovers the cursor over an item, without clicking it, and a small "hover box" appears with supplementary information ...

Javascript Get QueryString Variable

pc@pedrocorreia.net — Sun, 08 Mar 2009 17:40:32 +0000

Probably this won't be a normal procedure, getting query string variables using a client-script, JavaScript, mainly you use a server-side script, such as PHP, ASP.NET. But you can, also, easily get variables in GET request (this is, all variables ...

Javascript Tic Tac Toe

pc@pedrocorreia.net — Tue, 24 Feb 2009 12:34:43 +0000

Here's a game that, I think, almost everyone knows about, Tic-Tac-Toe, who never played this one? I�ll try to give a full working example, well, almost full, I won�t implement a Human vs Computer, only Human Vs Human, later on a future snippet I'll ...

Adsense Blogger Manager

pc@pedrocorreia.net — Sat, 13 Dec 2008 18:59:03 +0000

As an AdSense and Blogger user, I think that using ads in Blogger could be more efficient, although it's very easy to use. Blogger fully supports AdSense in its mechanism, however I think that we could have a little more power over the places we w ...

A So Called IMDB API

pc@pedrocorreia.net — Sat, 08 Nov 2008 16:39:44 +0000

As far as I know IMDB doesn't provide any official API, there's a Pro version but I think that doesn't give you access to their database, what I heard is that IMDB will do something in that area, but for the moment, there's no official solution. ...

Array.prototype, Shuffling e ... EuroMilh�es

pc@pedrocorreia.net — Sun, 12 Oct 2008 21:38:42 +0100

Lendo o titulo, o jogo EuroMilh�es parece estar um pouco fora do contexto, mas � mesmo propositado, pois irei dar um exemplo do preenchimento de um boletim do EuroMilh�es, sendo esse preenchimento totalmente aleat�rio, l� mais para a frente estar� tu ...

O Jogo do Galo em Javascript

pc@pedrocorreia.net — Sun, 05 Oct 2008 16:40:43 +0100

N�o � que isto v� trazer a felicidade a algu�m, mas depois de escrever alguns snippets na ligua materna de William Shakespeare, eis que volto a escrever tendo como base a lingua de Cam�es. � um exemplo l�dico, o Jogo do Galo! Quem � que nunca o ...

Flash and Image Protect

pc@pedrocorreia.net — Tue, 19 Aug 2008 18:17:31 +0100

There are many ways to protect our website content... but also, almost all of them fail! I won't give a fully 100% working sample, this is just like those site who disable mouse right-click, you can easily disable JavaScript, or in a ultimate case ...

Classic ASP Array Redim Preserve

pc@pedrocorreia.net — Sun, 10 Aug 2008 22:34:22 +0100

When compared to PHP4, manipulating arrays in Classic ASP it's further more difficult (well not just in arrays, but I won't start a flame war :)), even for the built-in functions, PHP has a broader set of functions. Please note that I'm not bashing C ...

Ajax Server Date/ Time

pc@pedrocorreia.net — Sun, 27 Jul 2008 19:34:25 +0100

The main goal of this script's very simple, show server date/ time. Let's suppose you run a website on which you have some signup form or a poll or something else that have a specific deadline, this is at a precise time that some specific function ...

Excel Timer

pc@pedrocorreia.net — Sat, 19 Jul 2008 22:00:55 +0100

Here's something that I don't use a lot but maybe could help someone, an Excel Timer. In VB6 we have a specific control to this, Timer, however in VBA such control doesn't exist. We can have two approaches to this issue, using Windows Timer, in ...

Javascript Image Preload

pc@pedrocorreia.net — Sun, 13 Jul 2008 16:43:05 +0100

There are various ways to preload images in a html page and there are many reasons for you to want to preload some web content, like images for example when you're building a gallery or some effects, the delay in image loading may ruin your ef ...

A Basic PHP String.Format

pc@pedrocorreia.net — Wed, 25 Jun 2008 19:14:09 +0100

Here's another one that I use a lot in .NET, String.Format. Basically String.Format replaces an item with this format {x} (where X's an int) by its correspondent argument, you can do much more, such as format the item, for example format currency, ...

A Basic PHP StringBuilder

pc@pedrocorreia.net — Wed, 25 Jun 2008 16:14:34 +0100

StringBuilders are commonly used in .NET or Java (or at least I use it :)), they're more efficient than concatenating Strings. The StringBuilder initially pre-allocates memory space and if necessary it will add more (if exists available memory), when ...

Brief introduction to XSLT and Table Accessibility

pc@pedrocorreia.net — Sun, 22 Jun 2008 18:10:48 +0100

" ...Extensible Stylesheet Language Transformations (XSLT) is an XML-based language used for the transformation of XML documents into other XML or "human-readable" documents. The original document is not changed; rather, a new document is created bas ...

Update/ Populate DropDown using Ajax

pc@pedrocorreia.net — Sat, 21 Jun 2008 18:32:46 +0100

I won't get in detail about Ajax, nowadays almost everyone know what Ajax (Asynchronous JavaScript And XML) stands for, basically it's a technology that allow us to refresh some parts of our webpage without making a full postback. It saves resources ...

Inserting data into a Spreadsheet

pc@pedrocorreia.net — Sat, 14 Jun 2008 23:02:32 +0100

Spreadsheets, so well known for Microsoft Excel or OpenOffice Calc, are one of the most powerful tools used in *Office* suites (such as Microsoft Office, OpenOffice, StarOffice, [your preferred suite here], ...). In this snippet I'll try to demonstra ...

Calculate age in MySQL

pc@pedrocorreia.net — Fri, 13 Jun 2008 18:36:33 +0100

I will try to translate some Portuguese snippets to English. The first one I picked was, how to calculate age in MySQL. MySQL (as far as I know ^_^'') doesn't have a function that allow us to obtain a person age, although it's not really that hard ...

Possible methods to protect e-mail address from spam bots

pc@pedrocorreia.net — Tue, 10 Jun 2008 13:46:38 +0100

Welcome to my first snippet ... in English. From now on I'll start writing more in English, but I won't stop writing a few more snippets in my main language, Portuguese. Since English's not my main language, certainly I'll give some errors, I hope th ...

Youtube Video Click Blocker

pc@pedrocorreia.net — Sun, 01 Jun 2008 16:28:24 +0100

Bem, o titulo do snippet � mais um titulo pomposo que outra coisa :-D, visto que a finalidade � somente tentar demonstrar uma possivel maneira de sobrepor uma imagem sobre um objecto flash. Finalidade disto? Humm, bem, � capaz de haver alguma, ...

Multiple Level Optgroup

pc@pedrocorreia.net — Sat, 31 May 2008 21:55:44 +0100

A tag optgroup permite agrupar as op��es, dividindo-as por t�picos para que se possa compreender melhor os v�rios itens e sub-itens, facilitando assim o seu uso. Por�m a tag optgroup n�o suporta sub-niveis multiplos, isto �, dentro da tag optgro ...

Asp Classic 'OOP' e Scripting.Dictionary

pc@pedrocorreia.net — Sat, 24 May 2008 01:36:09 +0100

O Asp (cl�ssico) n�o suporta verdadeiramente OOP, � uma linguagem procedimental, � semelhan�a do PHP4, por�m no PHP4 tamb�m existe uma breve introdu��o ao OOP, ainda que pouco implementado. No ASP passa-se algum semelhante, por�m podemos recorrer a ...

Um simples sistema de idiomas

pc@pedrocorreia.net — Thu, 22 May 2008 23:37:25 +0100

Num mercado cada vez mais global, fazer com que o nosso servi�o chegue a um leque maior de pessoas, torna-se muito importante, geralmente a barreira neste caso ser� a linguistica, podemos ser uma empresa Portuguesa, mas se tamb�m um dos nossos public ...

Diz que � uma esp�cie de IMDB API

pc@pedrocorreia.net — Mon, 12 May 2008 01:34:38 +0100

Chamar a este snippet uma API do IMDB, � no minimo dos minimos, um pouco discutivel, qui�� uma heresia ^_^'' Que eu saiba o IMDB n�o fornece nenhuma API ou alguma forma de aceder aos seus preciosos conte�dos, pelo menos de uma forma gratu�ta, porque ...

Construir um simples Captcha

pc@pedrocorreia.net — Sat, 03 May 2008 22:08:23 +0100

Cada vez mais se recorre ao Captcha (Completely Automated Public Turing test to tell Computers and Humans Apart), para evitar o spam (que virou recentemente a casa dos 30:)), geralmente encontra-se nas p�ginas de registo, por ex. quando criamos uma c ...