I am doing length validation but it's not working. For this I am using onBlur event but it is not working. Please help me how to do it. I think it is not firing onBlur event.

My code is following -

<body>
<script language="javascript1.2">
function verify(form)
{
if(form.my.value=="")
{
alert("please fill");
document.form.my.focus();
return(false);
}
}

function checklen(form)
{
val = form.my.value;
len=val.length;
alert("writwe value");
if(len>10)
{
alert("value exceeds 10 character");
form.my.value="";
form.my.focus();
}
}


</script>
<form name="form" method="post" onSubmit="return verify(this)" action="validation2.php">
<p>
<input type="text" name="my" onBlur="checklen(this)">
</p>
<p>
<input type="text" name="my2">
</p>
<p> <input type="submit" name="Submit" value="Submit" >
</p>
</form>
</body>