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| <html>
<head>
<script type='text/javascript' >
function CheckOthers()
{
var TabChecks=document.getElementsByName('mycheck[]');
for (i=1;i<4;i++)
TabChecks[i].checked=TabChecks[0].checked?0:1;
}
</script>
</head>
<body>
0<input type="checkbox" name="my" onmouseup="CheckOthers()"><br>
a<input type="checkbox" name="mycheck[]" value="a"><br>
b<input type="checkbox" name="mycheck[]" value="b"><br>
c<input type="checkbox" name="mycheck[]" value="c"><br>
</form>
</body>
</html> |