util=function(){var c=function(e,d){e.attr("disabled",true);if(d){e.empty().append('<option value="-">Loading...</option>')}};var b=function(e,d){e.attr("disabled",false);if(d){e.empty().append(d)}};var a=function(d){return typeof d=="undefined"||d===null||d===""};return{disableDropDown:c,enableDropDown:b,isNull:a}}();