js设置文件框可编辑

<html:radio property="includeDisks" value="2" onclick="showDisksInfo();">

<html:textarea property="disksInfo" rows="3" cols="100" disabled="true"/>

<script type="text/javascript">
document.all("includeDisks")[0].checked=true;//单选默认选中
function showDisksInfo()
{
document.getElementsByName("disksInfo")[0].disabled=false;//设置文件框可编辑
}
</script>