jquery 日期（前文本框的日期不能大于后文本框的日期）

<input id="PRACTICESTART" type="text" name="wjryJbxx.PRACTICESTART"
     onclick="WdatePicker({maxDate:'#F{$dp.$D(\'PRACTICEEND\')}',skin:'whyGreen',dateFmt:'yyyy-MM-dd'})" />
    至
    <input id="PRACTICEEND" type="text" name="wjryJbxx.PRACTICEEND"  value="${BGSJe }"
     onclick="WdatePicker({minDate:'#F{$dp.$D(\'PRACTICESTART\')}',skin:'whyGreen',dateFmt:'yyyy-MM-dd'})"/>