You are doing
and apparently you think that the name musimw
is some global.
Yes, it is, in MSIE.
You must use "scope" to find it. To wit:
You declared your page to be xhtml1-transitional.dtd, and in xhtml, <form> names are deprecated. So, technically, you should change to using
<form id="musimw" ...>
and then do
though the code
is correct so long as you know that the <form> in question is the only (or at least first) form on the page.