<script language="javascript">
function check(No){
var i=No
var status=false
var objs=document.formName.getElementsByTagName('input')
for(i=0;i<objs.length;i++){
if(objs[i].type=='checkbox'&& objs[i].name.indexOf('checkbox'+No)>-1&&objs[i].checked)
status=true
}
if(!status)alert("第"+No.toString()+"组没有选!")
}
</script>
<form name =formName>
<input type=checkbox name =checkbox11 >
<input type=checkbox name =checkbox12 >
<input type=checkbox name =checkbox13 >
<input type=checkbox name =checkbox21 >
<input type=checkbox name =checkbox22 >
<input type=checkbox name =checkbox31 >
<input type=checkbox name =checkbox32 >
<input type=checkbox name =checkbox33 >
<input type=button value=test onclick="check(1)">
</form>
function check(No){
var i=No
var status=false
var objs=document.formName.getElementsByTagName('input')
for(i=0;i<objs.length;i++){
if(objs[i].type=='checkbox'&& objs[i].name.indexOf('checkbox'+No)>-1&&objs[i].checked)
status=true
}
if(!status)alert("第"+No.toString()+"组没有选!")
}
</script>
<form name =formName>
<input type=checkbox name =checkbox11 >
<input type=checkbox name =checkbox12 >
<input type=checkbox name =checkbox13 >
<input type=checkbox name =checkbox21 >
<input type=checkbox name =checkbox22 >
<input type=checkbox name =checkbox31 >
<input type=checkbox name =checkbox32 >
<input type=checkbox name =checkbox33 >
<input type=button value=test onclick="check(1)">
</form>
<HTML>
<HEAD>
<TITLE> New Document </TITLE>
<META NAME="Generator" CONTENT="EditPlus">
<META NAME="Author" CONTENT="">
<META NAME="Keywords" CONTENT="">
<META NAME="Description" CONTENT="">
</HEAD>
<BODY>
<input type="checkbox" name="yidishui1" value="" />
<input type="checkbox" name="yidishui1" value="" />
<input type="checkbox" name="yidishui1" value="" />
<input type="checkbox" name="yidishui1" value="" />
<input type="checkbox" name="yidishui1" value="" /><br>
<input type="checkbox" name="yidishui2" value="" />
<input type="checkbox" name="yidishui2" value="" />
<input type="checkbox" name="yidishui2" value="" />
<input type="checkbox" name="yidishui2" value="" />
<input type="checkbox" name="yidishui2" value="" /><br />
<input type="button" name="" onclick="check()" value="Check"/>
<script language="javascript">
<!--Begin Code
//******************
//检测
//******************
function check()
{
var Yidishui1ObjArr=document.getElementsByName("yidishui1");
var Yidishui2ObjArr=document.getElementsByName("yidishui2");
var RYidishui1=false;
var RYidishui2=false;
for(i=0;i<Yidishui1ObjArr.length;i++)
{
if(!Yidishui1ObjArr[i].checked)
{
RYidishui1=true;
}
}
for(i=0;i<Yidishui2ObjArr.length;i++)
{
if(!Yidishui2ObjArr[i].checked)
{
RYidishui2=true;
}
}
if(!RYidishui1)
{
alert("Name=a1 全选了");
}
if(!RYidishui2)
{
alert("Name=a2 全选了");
}
if(RYidishui1&&RYidishui2)
{
alert("都没有全选!");
}
}
//End Code
// -->
</script>
</BODY>
</HTML>
name 相同是表示一组,id是区分组中成员的。