js 改变表格高度


<style>td {
border:1 solid red;
}
</style>
<TABLE id="otbl" style="width:300px;height:100px;border:1 solid red;border-collapse:collapse;">
<TR>
<TD>11</TD>
<TD>11</TD>
<TD>11</TD>
</TR>
<TR>
<TD>22</TD>
<TD>22</TD>
<TD>22</TD>
</TR>
<TR>
<TD>33</TD>
<TD>33</TD>
<TD>33</TD>
</TR>
</TABLE>
<INPUT TYPE="button" value="  +   " onclick="_add()">
<SCRIPT LANGUAGE="JavaScript">
<!--
function _add(){
var otbl = document.getElementById("otbl");
otbl.style.height = parseInt(otbl.style.height) + 5 + "px"

}
//-->
</SCRIPT>