$(function(){
	var total_len = 140;

	function display_count() {
	    var prefix = $('#prefix').val().length;
	    var message = $('#message').val().length;
		var count_len = total_len - prefix - message;

		if (count_len < 0) {
            color = '#ff0000';
		} else if (count_len <= 15 && count_len > 5) {
            color = '#aa0000';
		} else if (count_len <= 5) {
            color = '#ff6600';
		} else {
            color = '#aaa';
        }

		$('#display_count').css('color', color);
		$('#display_count').text(count_len);
	}

	display_count();

	$('#message').keyup(function(){
		text_len = $(this).val().length;
		display_count();
	});

	$('#prefix').change(function(){
		action_len = $(this).val().length;
		display_count();
	});
});