polyfill for input@placeholder

gistfile1.js

(function($){
	$(function(){
		if(!Modernizr.input.placeholder){
			var $i = $('input[placeholder]');
			$i.each(function(){
				var $that = $(this);
				var text = $that.attr('placeholder');
				$that.css({color:'#aaa'});
				$that.val(text);
				$that.bind('focus', function(){
					var $that = $(this);
					if(new RegExp('^' + text + '$').test($that.val())){
						$that.val('');
						$that.css({color:'#333'});
					}
				});
				$that.bind('blur', function(){
					if(new RegExp('^$').test($that.val())){
						$that.val(text);
						$that.css({color:'#333'});
					}
				});
			});
		}
	});
})(jQuery);