function ValidatoTime(source, args){
var StartTime = agent.calcExpress(null, 'SCTDB:AS_MeetingRoom.StartTime');
var EndTime = agent.calcExpress(null, 'SCTDB:AS_MeetingRoom.EndTime');
var start=new Date(StartTime.replace("-", "/").replace("-", "/"));
var end=new Date(EndTime.replace("-", "/").replace("-", "/"));
if(end<=start){
args.IsValid = false;
}
else{
args.IsValid = true;
}
}