/**
 * YOU ARE FREE TO USE THIS CODE IF YOU HOLD THE REFERENCE TO THE AUTHOR
 * Plugin for jQuery that delimites the maximum of characteres in inputs and textareas
 * @author: Iv'n Guardado Castro
 * @email: dev.ivangc@gmail.com
 * @website: http://yensdesign.com/
 * customized - will check no. of words instead of chars.
 */
jQuery.fn.maxLength = function(max){
	this.each(function(){
		//Get the type of the matched element
		var type = this.tagName.toLowerCase();
		//If the type property exists, save it in lower case
		var inputType = this.type? this.type.toLowerCase() : null;
		//Check if is a input type=text OR type=password
		if(type == "input" && inputType == "text" || inputType == "password"){
			//Apply the standard maxLength
			$(this).attr('maxlength', max);
      this.maxLength = max;
		}
		//Check if the element is a textarea
		else if(type == "textarea"){
			//Add the key press event
			this.onkeypress = function(e){
				//Get the event object (for IE)
				var ob = e || event;
				//Get the code of key pressed
				var keyCode = ob.keyCode;
				//Check if it has a selected text
				var hasSelection = document.selection? document.selection.createRange().text.length > 0 : this.selectionStart != this.selectionEnd;
				//return false if can't write more

        //Count number of workds
        var inputValue = $(this).val();
        var len = inputValue.split(/[\s]+/).length;

				return !(len >= max && (keyCode > 50 || keyCode == 32 || keyCode == 0 || keyCode == 13) && !ob.ctrlKey && !ob.altKey && !hasSelection);
			};
			//Add the key up event
			this.onkeyup = function(){
				//If the keypress fail and allow write more text that required, this event will remove it 
				var inputValue = $(this).val();
        var len = inputValue.split(/[\s]+/).length;
        
        if(len > max){
          expString = inputValue.split(/\s+/,max);
          theNewString=expString.join(" ");

					this.value = theNewString; //this.value.substring(0,max);
				}
			};
		}
	});
};




/**
 * jQuery Maxlength plugin - for chars
 * @version		$Id: jquery.maxlength.js 18 2009-05-16 15:37:08Z emil@anon-design.se $
 * @package		jQuery maxlength 1.0.5
 * @copyright	Copyright (C) 2009 Emil Stjerneman / http://www.anon-design.se
 * @license		GNU/GPL, see LICENSE.txt
 */

(function($)
{

	$.fn.maxlen = function(options)
	{
		var settings = jQuery.extend(
		{
			events:				      [], // Array of events to be triggerd
			maxCharacters:		  10, // Characters limit
			status:				      false, // True to show status indicator bewlow the element
			statusClass:		    "status", // The class on the status div
			statusText:			    "character left", // The status text
			notificationClass:	"notification",	// Will be added to the emement when maxlength is reached
			showAlert: 			    false, // True to show a regular alert message
			alertText:			    "You have typed too many characters.", // Text in the alert message
			slider:				      false // Use counter slider
		}, options );

		// Add the default event
		$.merge(settings.events, ['keyup']);

		return this.each(function()
		{
			var item = $(this);
			var charactersLength = $(this).val().length;

      // Update the status text
			function updateStatus()
			{
				var charactersLeft = settings.maxCharacters - charactersLength;

				if(charactersLeft < 0)
				{
					charactersLeft = 0;
				}

				item.next("div").html(charactersLeft + " " + settings.statusText);
			}

			function checkChars()
			{
				var valid = true;

				// Too many chars?
				if(charactersLength >= settings.maxCharacters)
				{
					// Too may chars, set the valid boolean to false
					valid = false;
					// Add the notifycation class when we have too many chars
					item.addClass(settings.notificationClass);
					// Cut down the string
					item.val(item.val().substr(0,settings.maxCharacters));
					// Show the alert dialog box, if its set to true
					showAlert();
				}
				else
				{
					// Remove the notification class
					if(item.hasClass(settings.notificationClass))
					{
						item.removeClass(settings.notificationClass);
					}
				}

				if(settings.status)
				{
					updateStatus();
				}
			}

			// Shows an alert msg
			function showAlert()
			{
				if(settings.showAlert)
				{
					alert(settings.alertText);
				}
			}

			// Check if the element is valid.
			function validateElement()
			{
				var ret = false;

				if(item.is('textarea')) {
					ret = true;
				} else if(item.filter("input[type=text]")) {
					ret = true;
				} else if(item.filter("input[type=password]")) {
					ret = true;
				}

				return ret;
			}

			// Validate
			if(!validateElement())
			{
				return false;
			}

			// Loop through the events and bind them to the element
			$.each(settings.events, function (i, n) {
				item.bind(n, function(e) {
					charactersLength = item.val().length;
					checkChars();
				});
			});

			// Insert the status div
			if(settings.status)
			{
				item.after($("<div/>").addClass(settings.statusClass).html('-'));
				updateStatus();
			}

			// Remove the status div
			if(!settings.status)
			{
				var removeThisDiv = item.next("div."+settings.statusClass);

				if(removeThisDiv) {
					removeThisDiv.remove();
				}

			}

			// Slide counter
			if(settings.slider) {
				item.next().hide();

				item.focus(function(){
					item.next().slideDown('fast');
				});

				item.blur(function(){
					item.next().slideUp('fast');
				});
			}

		});
	};
})(jQuery);