[原创]同名checkbox的分级操作
[原创]同名checkbox的分级操作 <html>
<head>
<title>this is a test!</title>
</head>
<body>
<h1>This is a Test!</h1>
<form action='' name = 'test'>
<input name='checkboxfather1' type='checkbox' onClick='selectAll(this,1)'>checkbox[1]<br>
<input name='checkboxchild1' type='checkbox' value='1' onClick=gray1(checkboxchild1,checkboxfather1)>checkbox[11]<br>
<input name='checkboxchild1' type='checkbox' value='2' onClick=gray1(checkboxchild1,checkboxfather1)>checkbox[12]<br>
<input name='checkboxchild1' type='checkbox' value='3' onClick=gray1(checkboxchild1,checkboxfather1)>checkbox[13]<br>
<input name='checkboxchild1' type='checkbox' value='4' onClick=gray1(checkboxchild1,checkboxfather1)>checkbox[14]<br>
<input name='checkboxchild1' type='checkbox' value='5' onClick=gray1(checkboxchild1,checkboxfather1)>checkbox[15]<br>
<input name='checkboxfather2' type='checkbox' onClick='selectAll(this,2)'>checkbox[2]<br>
<input name='checkboxchild2' type='checkbox' value='1' onClick=gray1(checkboxchild2,checkboxfather2)>checkbox[21]<br>
<input name='checkboxchild2' type='checkbox' value='2' onClick=gray1(checkboxchild2,checkboxfather2)>checkbox[22]<br>
<input name='checkboxchild2' type='checkbox' value='3' onClick=gray1(checkboxchild2,checkboxfather2)>checkbox[23]<br>
<input name='checkboxchild2' type='checkbox' value='4' onClick=gray1(checkboxchild2,checkboxfather2)>checkbox[24]<br>
<input name='checkboxchild2' type='checkbox' value='5' onClick=gray1(checkboxchild2,checkboxfather2)>checkbox[25]<br>
<input name='checkboxfather3' type='checkbox' onClick='selectAll(this,3)'>checkbox[3]<br>
<input name='checkboxchild3' type='checkbox' value='1' onClick=gray1(checkboxchild3,checkboxfather3)>checkbox[31]<br>
<input name='checkboxchild3' type='checkbox' value='2' onClick=gray1(checkboxchild3,checkboxfather3)>checkbox[32]<br>
<input name='checkboxchild3' type='checkbox' value='3' onClick=gray1(checkboxchild3,checkboxfather3)>checkbox[33]<br>
<input name='checkboxchild3' type='checkbox' value='4' onClick=gray1(checkboxchild3,checkboxfather3)>checkbox[34]<br>
<input name='checkboxchild3' type='checkbox' value='5' onClick=gray1(checkboxchild3,checkboxfather3)>checkbox[35]<br>
</form>
</body>
</html>
<script language='JavaScript'>
var length = document.test.elements.length;
function selectAll(father,cc)
{
ccc = 'checkboxchild'+cc;
if(father.checked == true)
{
for(var i = 0;i<length;i++)
{
var ele = document.test.elements[i];
if(ele.name == ccc)
{
ele.checked = true;
ele.disabled = false;
}
}
}
else
{
for(var i = 0;i<length;i++)
{
var ele = document.test.elements[i];
if(ele.name == ccc)
{
ele.checked = false;
ele.disabled = false;
}
}
}
}
function gray1(cn,fn)
{
for(i=0,str=0;i<cn.length;i++)str=str+(cn[i].checked?1:0);gray(str,cn,fn);
}
function gray(c,cn,fn)
{
if(c == cn.length)
{
fn.checked = true;
fn.indeterminate = false;
}
else
{
if(c == 0)
{
fn.checked = false;
fn.indeterminate = false;
}
else
{
fn.checked = true;
fn.indeterminate = true;
}
}
}
</script>
