<SCRIPT LANGUAGE=javascript>
<!--
function chkAr_onclick()
{
document.all.Ar.style.display=(document.all.chkAr.checked)?"":"none";
}
//-->
</SCRIPT> <table width="100%">
<tr>
<td valign="top">
<p><input type="checkbox" name="chkAr" value="ON" onClick="chkAr_onclick()">公文管理</p>
</td>
<td valign="top">
<a name=Ar style="display:none">
<p><input type="checkbox" name="chkAr1" checked value="YES">发文办理</p>
<p><input type="checkbox" name="chkAr1" checked value="YES">公文维护</p>
</a>
</td>
</tr>
</table>
<!--
function chkAr_onclick()
{
document.all.Ar.style.display=(document.all.chkAr.checked)?"":"none";
}
//-->
</SCRIPT> <table width="100%">
<tr>
<td valign="top">
<p><input type="checkbox" name="chkAr" value="ON" onClick="chkAr_onclick()">公文管理</p>
</td>
<td valign="top">
<a name=Ar style="display:none">
<p><input type="checkbox" name="chkAr1" checked value="YES">发文办理</p>
<p><input type="checkbox" name="chkAr1" checked value="YES">公文维护</p>
</a>
</td>
</tr>
</table>
当Ar中没有被选中的值时,chkAr也不被选中
怎样写
function chkAr_onclick(){
var tt = false;
for (i=0; i<document.all("chkAr1").length-1;i++){
if (document.all("chkAr1")[i].checked)tt=true;}
if (tt==true)
document.all.Ar.style.display=(document.all.chkAr.checked)?"":"none";
else
document.all.chkAr.checked = false;
}
//--></SCRIPT><table width="100%">
<tr>
<td valign="top">
<p><input type="checkbox" name="chkAr" value="ON" onClick="chkAr_onclick()">公文管理</p>
</td>
<td valign="top">
<a name=Ar style="display: none">
<p><input type="checkbox" name="chkAr1" checked value="YES">发文办理</p>
<p><input type="checkbox" name="chkAr1" checked value="YES">公文维护</p>
</a>
</td>
</tr>
</table>
改成:
for (i=0; i<document.all("chkAr1").length;i++){
抱歉!!