<link href="//netdna.bootstrapcdn.com/bootstrap/3.0.0/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css">
<script src="//netdna.bootstrapcdn.com/bootstrap/3.0.0/js/bootstrap.min.js"></script>
<script src="//code.jquery.com/jquery-1.11.1.min.js"></script>
<!------ Include the above in your HEAD tag ---------->
<div class="container">
<div class="row">
<div class="col-sm-4 col-md-4">
<div class="panel panel-default">
<div class="panel-body">
<form accept-charset="UTF-8" action="" method="POST">
<textarea class="form-control counted" name="message" placeholder="Type in your message" rows="5" style="margin-bottom:10px;"></textarea>
<h6 class="pull-right" id="counter">320 characters remaining</h6>
<button class="btn btn-info" type="submit">Post New Message</button>
</form>
</div>
</div>
</div>
</div>
</div>
body{padding-top:20px;}
/**
*
* jquery.charcounter.js version 1.2
* requires jQuery version 1.2 or higher
* Copyright (c) 2007 Tom Deater (http://www.tomdeater.com)
* Licensed under the MIT License:
* http://www.opensource.org/licenses/mit-license.php
*
*/
(function($) {
/**
* attaches a character counter to each textarea element in the jQuery object
* usage: $("#myTextArea").charCounter(max, settings);
*/
$.fn.charCounter = function (max, settings) {
max = max || 100;
settings = $.extend({
container: "<span></span>",
classname: "charcounter",
format: "(%1 characters remaining)",
pulse: true,
delay: 0
}, settings);
var p, timeout;
function count(el, container) {
el = $(el);
if (el.val().length > max) {
el.val(el.val().substring(0, max));
if (settings.pulse && !p) {
pulse(container, true);
};
};
if (settings.delay > 0) {
if (timeout) {
window.clearTimeout(timeout);
}
timeout = window.setTimeout(function () {
container.html(settings.format.replace(/%1/, (max - el.val().length)));
}, settings.delay);
} else {
container.html(settings.format.replace(/%1/, (max - el.val().length)));
}
};
function pulse(el, again) {
if (p) {
window.clearTimeout(p);
p = null;
};
el.animate({ opacity: 0.1 }, 100, function () {
$(this).animate({ opacity: 1.0 }, 100);
});
if (again) {
p = window.setTimeout(function () { pulse(el) }, 200);
};
};
return this.each(function () {
var container;
if (!settings.container.match(/^<.+>$/)) {
// use existing element to hold counter message
container = $(settings.container);
} else {
// append element to hold counter message (clean up old element first)
$(this).next("." + settings.classname).remove();
container = $(settings.container)
.insertAfter(this)
.addClass(settings.classname);
}
$(this)
.unbind(".charCounter")
.bind("keydown.charCounter", function () { count(this, container); })
.bind("keypress.charCounter", function () { count(this, container); })
.bind("keyup.charCounter", function () { count(this, container); })
.bind("focus.charCounter", function () { count(this, container); })
.bind("mouseover.charCounter", function () { count(this, container); })
.bind("mouseout.charCounter", function () { count(this, container); })
.bind("paste.charCounter", function () {
var me = this;
setTimeout(function () { count(me, container); }, 10);
});
if (this.addEventListener) {
this.addEventListener('input', function () { count(this, container); }, false);
};
count(this, container);
});
};
})(jQuery);
$(function() {
$(".counted").charCounter(320,{container: "#counter"});
});
