Posted on December 21, 2008, Filled under JavaScript, jQuery, MooTools, 
Bookmark it
JQZoom is a JavaScript image magnifier built using the popular library JQuery. It works on all modern browsers: IE 6+, Mozilla Firefox 2+, Google Chrome 1.0, Safari 2+, Opera 9+.
Features
- Standard zoom
- Reverse zoom
- Zoom without lens and title
- Custom positioning the jqzoom window
- Fade out effect while hiding
- Fixed IE6- select box bug
[Go to Project Page | View Demos]
MooTools 1.2 image zoom is a script that displays a thumbnail with a selected region in it which is magnified and showed next to the thumbnail. Besides the small image, the original image is needed. Both have to be proportional in size. For example, if the thumbnail has a size of 100 x 300, the big image has to have a size of 400 x 1200 or similar (the ratio should be kept). The JS file is structured as a class and all CSS styles are mainly external.
[Go to Homepage | View Demo]
Posted on December 5, 2008, Filled under AJAX, jQuery, Bookmark it
Did you notice how many sites have a verification tool for the ‘username’ field when you try to register? Many use the power of AJAX to check if the nickname has already been assigned to an existing member. This short tutorial gives you an idea of how you can make such a feature in the pages of your website. We’ll use JavaScript (JQuery) and PHP.
Let’s start creating the page where the visitor will type the “username”:
index.php
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
<TITLE>An AJAX Username Verification Tool</TITLE>
<META NAME="Keywords" CONTENT="form, username, checker">
<META NAME="Description" CONTENT="An AJAX Username Verification Script">
<script type="text/javascript" src="jquery-1.2.6.min.js"></script>
<link rel="stylesheet" type="text/css" href="style.css" />
As you can see the JQuery library and the CSS file (will reveal its contents later) are included. Now let’s continue creating the script that takes the input value and sends it to check.php in order to determine if the username is already in use or not. I will explain you the code in detail below.
<SCRIPT type="text/javascript">
<!--
/*
Credits: Bit Repository
Source: http://www.bitrepository.com/web-programming/ajax/username-checker.html
*/
pic1 = new Image(16, 16);
pic1.src="loader.gif";
$(document).ready(function(){
$("#username").change(function() {
var usr = $("#username").val();
if(usr.length >= 4)
{
$("#status").html('<img src="loader.gif" align="absmiddle"> Checking availability...');
$.ajax({
type: "POST",
url: "check.php",
data: "username="+ usr,
success: function(msg){
$("#status").ajaxComplete(function(event, request, settings){
if(msg == 'OK')
{
$("#username").removeClass('object_error'); // if necessary
$("#username").addClass("object_ok");
$(this).html(' <img src="tick.gif" align="absmiddle">');
}
else
{
$("#username").removeClass('object_ok'); // if necessary
$("#username").addClass("object_error");
$(this).html(msg);
}
});
}
});
}
else
{
$("#status").html('<font color="red">' +
'The username should have at least <strong>4</strong> characters.</font>');
$("#username").removeClass('object_ok'); // if necessary
$("#username").addClass("object_error");
}
});
});
//-->
</SCRIPT>
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Posted on November 6, 2008, Filled under JavaScript, jQuery, Bookmark it
I was googling for a way to show a drop down menu with states that populates another menu with counties from the selected state. I found a nice dynamic dependent drop down script (with categories & subcategories) at dreamwebstore.com. However, adding over 2000 counties in a single JavaScript file is not such a good idea because such a script is quite big (200KB+) and in many cases (a slow internet connection, some downloads in progress etc.) it will take some time to load.
I’ve decided to keep the counties from each state in separate files. For instance, if we select Hawaii state (with 5 counties), only the hi.js file will load which has only a size of 515 bytes. To do this I’ve used the powerful JavaScript library JQuery.
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Create any type of Anti-Spam Forms with AJAX Form Builder
Posted on September 2, 2008, Filled under AJAX, jQuery, PHP, Bookmark it
This is a professional multi-usage AJAX Form Builder meant to enhance the functionality of your website by providing an interactive user experience for your readers that need to reach you, whether they need to send a feedback, share their opinion regarding your website, fill a survey, leave a testimonial or even make a room reservation online.
Beside the premium AJAX Form, I would like to offer you a short tutorial regarding the creation of a basic AJAX Contact Form. It will give you an idea of how you can create similar web applications using jQuery and AJAX.
The aim of the tutorial is to help you to create a simple (tableless) ajax contact form using AJAX, JQuery & PHP. We will have a HTML page which will contain the form, a CSS file, a php page where the data will be sent and another file where the validation function(s) will be located. JQuery is a new and powerful library which simplifies the way that you write JavaScript.
Step 1 – Creating the configuration file
config.php
<?php
// To
define("WEBMASTER_EMAIL", 'your_name@domain.com');
?>
Here you should fill the e-mail address where you wish to receive the mail as well as the address where you wish to receive the replies (usually the same).
Step 2 – Creating the css file
style.css
/*
Credits: Bit Repository
CSS Library: http://www.bitrepository.com/
*/
html, body { padding: 0; border: 0px none; }
.notification_error
{
border: 1px solid #A25965;
height: auto;
width: 90%;
padding: 4px;
background: #F8F0F1;
text-align: left;
-moz-border-radius: 5px;
}
.notification_ok
{
border: 1px #567397 solid;
height: auto;
width: 90%
padding: 8px;
background: #f5f9fd;
text-align: center;
-moz-border-radius: 5px;
}
.info_fieldset { -moz-border-radius: 7px; border: 1px #dddddd solid; }
.info_fieldset legend
{
border: 1px #dddddd solid;
color: black;
font: 13px Verdana;
padding: 2px 5px 2px 5px;
-moz-border-radius: 3px;
}
.button
{
border: 1px solid #999999;
border-top-color: #CCCCCC;
border-left-color: #CCCCCC;
background: white;
color: #333333;
font: 11px Verdana, Helvetica, Arial, sans-serif;
-moz-border-radius: 3px;
}
/* Label */
label {width: 140px; padding-left: 20px; margin: 5px; float: left; text-align: left;}
/* Input, Textarea */
input, textarea
{
margin: 5px;
padding: 0px;
float: left;
border: 1px solid #999999;
border-top-color: #CCCCCC;
border-left-color: #CCCCCC;
color: #333333;
font: 11px Verdana, Helvetica, Arial, sans-serif;
-moz-border-radius: 3px;
}
/* BR */
br { clear: left; }
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