$(document).ready(function()
{
    $('#search-bar input[type="submit"]').hide();
    $('#search_keywords').keyup(function(key)
    {
        if (this.value.length >= 3 || this.value == '')
        {
            $('#loader').show();
            $('#content').load(
                $(this).parents('form').attr('action'),
                {
                    query: this.value + '*'
                },
                function() {
                    $('#loader').hide();
                }
                );
        }
    });
});