//开始时间不能小于当前时间
function startTimeIsBigThanTotay(startTime){
	  var startdate = new Date((startTime).replace(/-/g,"/"));  
      var date = new Date();  
      if(startdate < date) 
      {
          return false;
      }
      else
      {
         return true;
      }
}

//结束时间不能小于当前时间 
function endThanTotay(endTime){
	  var enddate = new Date((endTime).replace(/-/g,"/"));  
	  var nowdate = new Date();     
      if(enddate < nowdate)    
      {
          return false;
      }
      else
      {
         return true;
      }
}


//结束时间不能小于开始时间 
function endThanStart(startTime,endTime){
	  var startdate = new Date((startTime).replace(/-/g,"/"));  
	  var enddate = new Date((endTime).replace(/-/g,"/"));    
      if(enddate < startdate)  
      {
          return false;
      }
      else
      {
         return true;
      }
}