$(document).ready(function() {
    $("#txtTopSearchBox").focus(function() {
        $(this).removeClass().addClass("txtSearchBoxFocus").val("");

    });
    $("#txtTopSearchBox").blur(function() {
        if (($(this).val() == "Search") || ($(this).val() == "")) {
            $(this).removeClass().addClass("txtSearchBox").val("Search");
        }
    });

    $("#txtTopSearchBox").keypress(function(e) {
        if (e.which == 13) {
           
            var key = $("#txtTopSearchBox").val();
            key = escape(key);
            window.location.href = "browse.aspx?search=" + key;
            return false;
        }
    });
});