<input type=checkbox id=chkName>
<input type=checkbox id=chkName>
<input type=checkbox id=chkName>
<input type=checkbox id=chkName><button onclick="selectChk(!document.all.chkName[0].checked);">测试</button>
<script>
function selectChk(v)
{
var i=0;
for (i=0;i<document.all("chkName").length;i++)
{
document.all.chkName[i].checked=v;
}
}
</script>
<input type=checkbox id=chkName>
<input type=checkbox id=chkName>
<input type=checkbox id=chkName><button onclick="selectChk(!document.all.chkName[0].checked);">测试</button>
<script>
function selectChk(v)
{
var i=0;
for (i=0;i<document.all("chkName").length;i++)
{
document.all.chkName[i].checked=v;
}
}
</script>
</head>
<script>
function check()
{
if(f1.c1.checked&&f1.c2.checked&&f1.c3.checked)
{
f1.c1.checked=false
f1.c2.checked=false
f1.c3.checked=false
}
else
{
f1.c1.checked=true
f1.c2.checked=true
f1.c3.checked=true
}
}
</script>
<body>
<form name="f1" method="POST" action="--WEBBOT-SELF--"> <p><input type="checkbox" name="c1" value="ON">
<input type="checkbox" name="c2" value="ON">
<input type="checkbox" name="c3" value="ON">
</p>
<p><input type="button" value="按钮" name="B3" onClick="check()">
</p>
<p> </p>
</form></body></html>
</head>
<script>
function check()
{
for(var counter=0;counter<=f1.elements.length-1;counter++)
{
if(!f1.elements[counter].checked)
{
f1.elements[counter].checked=true
}
else
{
f1.elements[counter].checked=false }
}
}
</script>
<body>
<form name="f1" method="POST" action="--WEBBOT-SELF--"> <p><input type="checkbox" name="c1" value="ON">
<input type="checkbox" name="c2" value="ON">
<input type="checkbox" name="c3" value="ON">
</p>
<p><input type="button" value="按钮" name="B3" onClick="check()">
</p>
<p> </p>
</form></body></html>
function ChooseAll()
{
num=document.forms[0].kk.length;
if (document.all.ClickAll.onclick)
for (var i=0;i<num;i<i++)
{
var e = document.all.kk[i];
e.checked=1;
}
else
for (var i=0;i<num;i<i++)
{
var e = document.all.kk[i];
e.checked=0;
}
return true;
}