var strJHRQ=startime.value; //获得系统日期的文本值
var strJHWCSJ=backtime.value; //获得用户选择的日期文本值
var arrJHRQ=strJHRQ.split('-'); //转成成数组,分别为年,月,日,下同
var arrJHWCSJ=strJHWCSJ.split('-');
var dateJHRQ=new Date(parseInt(arrJHRQ[0]),parseInt(arrJHRQ[1])-1,parseInt(arrJHRQ[2]),0,0,0); //新建日期对象
var dateJHWCSJ=new Date(parseInt(arrJHWCSJ[0]),parseInt(arrJHWCSJ[1])-1,parseInt(arrJHWCSJ[2]),0,0,0); if (dateJHRQ.getTime()>dateJHWCSJ.getTime()) {
sAlert('出发日期不能小于返回日期',this);
return false;
}