code: function isAccessTimeValid(acceptTime){
  
  	var isValid = true;
  
  	if(!util.isArray(acceptTime)){
  		isValid = false;
  	}else{
  		for(var i=0; i < acceptTime.length; i++){
  			if(!(acceptTime[i] instanceof TimeInterval)){
  				isValid = false;
  				break;
  			}
  		}
  	}
  
  	return isValid;
  }
docs: 检查acceptTime是否合法
  @param  {array} acceptTime 待检查的acceptTime数组
  @return {Boolean}          检查结果