JS判断时间段的实现代码

<th>交易时间开始:</th>             <td><input id="bcconDateBeginDate" name="bcconDateBeginDate" value="2016/06/12 00:00:00" class="easyui-datetimebox" editable="false" style="width: 150px;" /></td>             <th>交易时间结束:</th>             <td><input id="bcconDateEndDate" name="bcconDateEndDate" value="2016/06/12 23:59:59" class="easyui-datetimebox" editable="false" style="width: 150px;" /></td> var v = $('#bcconDateBeginDate').datetimebox('getValue');   if(v.length>0){     var date = new Date();     var year = date.getFullYear();     var month = date.getMonth() + 1;     var strDate = date.getDate();     if (month >= 1 && month <= 9) {       month = "0" + month;     }     if (strDate >= 0 && strDate <= 9) {       strDate = "0" + strDate;     }     var nowdate = year+"/"+month+"/"+strDate;     var data1 = Date.parse(v.substring(0,10).replace(/-/g,"/"));      var data2 = Date.parse(nowdate);     var datadiff = data2-data1;      var time = 6*24*60*60*1000;      if(datadiff>time){       $.messager.alert('提示', '开始时间不能超过当前时间前7天!');       return;     }   }