<html>
<head>
<style>
.a {
background-color:#cccccc;
}
.b {
background-color:#ffffff;
}
</style>
<script language="javascript">
function check_()
{
if(form1.a.checked==true)
{
form1.b.disabled=true;
form1.b.className='a';
}
else
{
form1.b.disabled=false;
form1.b.className='b';
}
}
</script>
</head>
<body>
<form name="form1">
<input type="radio" name="a" onclick="check_()">
<input type="text" name="b">
</form>
</body>
</html>
<head>
<style>
.a {
background-color:#cccccc;
}
.b {
background-color:#ffffff;
}
</style>
<script language="javascript">
function check_()
{
if(form1.a.checked==true)
{
form1.b.disabled=true;
form1.b.className='a';
}
else
{
form1.b.disabled=false;
form1.b.className='b';
}
}
</script>
</head>
<body>
<form name="form1">
<input type="radio" name="a" onclick="check_()">
<input type="text" name="b">
</form>
</body>
</html>
<INPUT TYPE="radio" id="r1" name="r">enable<INPUT TYPE="radio" id="r2" name="r">disable
<SCRIPT LANGUAGE="JavaScript">
function document.all.r1.onclick() {
document.all.t.disabled = true;
document.all.t.style.background = "#cecece";
}
function document.all.r2.onclick() {
document.all.t.disabled = false;
document.all.t.style.background = "";
}
</SCRIPT>
<head>
<style>
.a {
background-color:#cccccc;
}
.b {
background-color:#ffffff;
}
</style>
<script language="javascript">
function check_()
{
if(form1.a[0].checked==true)
{
form1.b.disabled=true;
form1.b.className='a';
}
else
{
form1.b.disabled=false;
form1.b.className='b';
}
}
</script>
</head>
<body>
<form name="form1">
<input type="radio" name="a" onclick="check_()">a
<input type="radio" name="a" onclick="check_()">b<br>
<input type="text" name="b">
</form>
</body>
</html>