jsonObj = [];
    $("input[class=lookup]").each(function() {
        var code = $(this).attr("title");
        var descr = $(this).val();
        item = {};
        item["code"] = code;
        item["descr"] = descr;
        jsonObj.push(item);
    });
    
    var jsonString = JSON.stringify(jsonObj);
    var jsonString = "[{"code":"BA","descr":"The Boeing Company"},{"code":"CSCO","descr":"Cisco Systems, Inc"},{"code":"IBM","descr":"International Business Machines Corporation"}]";
    var oList = jQuery.parseJSON(jsonString);