javascript版的日期输入控件(4)

    <  td width="100%" colspan="3" height="26">   <input type="button" value="<<" onclick="plusyear()" name="plusyear">       <input type="button" value="<" onclick="plusmonth()" name="plusmonth">  <font id="year">      </font>年<font id="month"></font>月       <input type="button" value=">" onclick="addmonth()" name="addmonth">       <input type="button" value=">>" name="addyear" onclick="addyear()"></td>    </tr>     <tr>      <td width="100%" colspan="3" height="119" valign="top">     <table border="0" cellpadding="0" cellspacing="0" style="border-collapse: collapse" bordercolor="#111111" width="100%">        <tr>        <td width="14%" align="center"><b><font color="#ff0000">日</font></b></td>        <td width="14%" align="center"><b>一</b></td>        <td width="14%" align="center"><b>二</b></td>        <td width="14%" align="center"><b>三</b></td>        <td width="14%" align="center"><b>四</b></td>        <td width="15%" align="center"><b>五</b></td>        <td width="15%" align="center"><b><font color="#ff0000">六</font></b></td>      </tr>      <tr>        <td width="14%" align="center" id="day" onclick="add_day(year.innertext,month.innertext,this.innertext)"></td>        <td width="14%" align="center" id="day" onclick="add_day(year.innertext,month.innertext,this.innertext)">　</td>        <td width="14%" align="center" id="day" onclick="add_day(year.innertext,month.innertext,this.innertext)">　</td>        <td width="14%" align="center" id="day" onclick="add_day(year.innertext,month.innertext,this.innertext)">　</td>        <td width="14%" align="center" id="day" onclick="add_day(year.innertext,month.innertext,this.innertext)">　</td>        <td width="15%" align="center" id="day" onclick="add_day(year.innertext,month.innertext,this.innertext)">　</td>        <td width="15%" align="center" id="day" onclick="add_day(year.innertext,month.innertext,this.innertext)">　</td>        </tr>        <tr>          <td width="14%" align="center" id="day" onclick="add_day(year.innertext,month.innertext,this.innertext)">　</td>        <td width="14%" align="center" id="day" onclick="add_day(year.innertext,month.innertext,this.innertext)">　</td>        <td width="14%" align="center" id="day" onclick="add_day(year.innertext,month.innertext,this.innertext)">　</td>        <td width="14%" align="center" id="day" onclick="add_day(year.innertext,month.innertext,this.innertext)">　</td>        <td width="14%" align="center" id="day" onclick="add_day(year.innertext,month.innertext,this.innertext)">　</td>        <td width="15%" align="center" id="day" onclick="add_day(year.innertext,month.innertext,this.innertext)">　</td>        <td width="15%" align="center" id="day" onclick="add_day(year.innertext,month.innertext,this.innertext)">　</td>