$(document).ready(
    function() {
        var default_text = "";
        $("#search-bar-input-field").click(
            function () {
                if(default_text == "") {
                    default_text = $("#search-bar-input-field").val();
                    $("#search-bar-input-field").val("");
                }
                else {
                    if($("#search-bar-input-field").val() == default_text) {
                        $("#search-bar-input-field").val("");
                    }
                }
            }
        );
        $("#search-bar-input-field").blur(
            function () {
                if($("#search-bar-input-field").val() == "") {
                    $("#search-bar-input-field").val(default_text);
                }
            }
        );
    }
);