/*
* clearingInput: a jQuery plugin
*
* clearingInput is a simple jQuery plugin that provides example/label text
* inside text inputs that automatically clears when the input is focused.
* Common uses are for a hint/example, or as a label when space is limited.
*
* For usage and examples, visit:
* http://github.com/alexrabarts/jquery-clearinginput
*
* Licensed under the MIT:
* http://www.opensource.org/licenses/mit-license.php
*
* Copyright (c) 2008 Stateless Systems (http://statelesssystems.com)
*
* @author Alex Rabarts (alexrabarts -at- gmail -dawt- com)
* @requires jQuery v1.2 or later
* @version 0.1.1
*/
 
(function($) 
{
	$.extend($.fn, {
		clearingInput: function(options) 
		{
			var defaults = {blurClass: 'blur'};
 	  		options = $.extend(defaults, options);

			return this.each(function() 
			{
				var input = $(this);
				var form = input.parents('form:first');
				var label, text;
				
				if (options.method=='fromLabel')
					text = textFromLabel();
				else
					text = options.text || input.val();
				
				if (input.val()==text || input.val()=='')
					input.addClass(options.blurClass);
				
				if (input.hasClass(options.blurClass)) 
				{
					input.blur(function () {
						if (input.val() === '') {
							input.val(text).addClass(options.blurClass);
						}
					}).focus(function () {
						if (input.val() === text) {
							input.val('');
						}
						input.removeClass(options.blurClass);
					});
					form.submit(function() {
						if (input.hasClass(options.blurClass)) {
							input.val('');
						}
					});
					input.blur();
				}
 
				function textFromLabel()
				{
					label = form.find('label[for=' + input.attr('id') + ']');
					label.css({position: 'absolute', left: '-9999px'});
					return label.text();
				}
			});
		}
	});
})(jQuery);