Added Character Counter

Shows the user how many characters are left before hitting the max per
post. Currently does not work in Quick Reply.

js/charcount.js

@@ -0,0 +1,29 @@
+/*
+ * charcount.js
+ *
+ * Usage:
+ *   $config['additional_javascript'][] = 'js/jquery.min.js';
+ *   $config['additional_javascript'][] = 'js/charcount.js';
+ *
+ */
+
+$(document).ready(function(){
+
+	// Storing this jQuery object outside of the event callback 
+	// prevents jQuery from having to search the DOM for it again
+	// every time an event is fired.
+	var $inputArea = $('#body');
+	var $coundownField = $('#countchar');
+	var $maxChars = 3600;
+        
+	// Preset countdown field to max initial content length
+	$coundownField.text($maxChars - $inputArea.val().length);
+
+	// input           :: for all modern browsers [1]
+	// selectionchange :: for IE9 [2]
+	// propertychange  :: for <IE9 [3]
+	$inputArea.on('input selectionchange propertychange', function() {
+		$charCount = $maxChars - $inputArea.val().length;
+		$coundownField.text($charCount);
+	});
+});

templates/post_form.html

@@ -59,6 +59,8 @@
 			</th>
 			<td>
 				<textarea name="body" id="body" rows="5" cols="35"></textarea>
+				<br/>
+				<span ID="countchar" class="countdown"></span>											  
 				{{ antibot.html() }}
 				{% if not (not (config.field_disable_subject or (id and config.field_disable_reply_subject)) or (mod and post.mod|hasPermission(config.mod.bypass_field_disable, board.uri))) %}
 				{% if not (not config.field_disable_email or (mod and post.mod|hasPermission(config.mod.bypass_field_disable, board.uri))) %}