Réponse acceptée !
Bonjour jackrichard,
voici ton code :
<html>
<head>
<title>essai</title>
<script language="JavaScript">
function desac()
{
if (document.form.test.checked == true)
{
document.form.entre.disabled = false;
}
else
{
document.form.entre.disabled = true;
}
}
</script>
</head>
<body>
<form name="form" method="post" action="">
<p>
<input type="text" name="entre">
</p>
<br>
<p>
<input name="test" type="checkbox" value="1" checked onclick ="desac();">
</p>
</form>
</body>
</html>