Attributes for <SCRIPT ...>
FOR = "object ID"
EVENT = event name

Usage Recommendation
don't use it

FOR and EVENT, which are MSIE extensions, are used together to create a script that operates as an event handler for an object. For example, the following script sets itself as the onsubmit() event handler for the object whose ID is myform:

<SCRIPT TYPE="text/javascript" FOR="myform" EVENT="onsubmit()">
<!--
var response=confirm("are you sure you want to submit?");
return response;
//-->
</SCRIPT>

The script is then applied to a form by setting the form's ID to myform:

<FORM ACTION="../cgi-bin/mycgi.pl" ID="myform">
name: <INPUT NAME="realname"><BR>
email: <INPUT NAME="email"><BR>
<INPUT TYPE=SUBMIT VALUE="join">
</FORM>

which (in MSIE) gives us this form:

name:
email:

This technique for setting an event handler isn't any easier than the traditional method which is also much more universal. Any object that has an event can have that event set with the appropriate attribute. For example, to set our form to check if the user really wants to submit we can use a script function and the onSubmit attribute. The script would look like this, creating a function called submitconfirm():

<SCRIPT TYPE="text/javascript">
<!--
function submitconfirm()
{
var response=confirm("are you sure you want to submit?");
return response;
}
//-->
</SCRIPT>

The form would call submitconfirm() in onSubmit like this:

<FORM 
    ACTION="../cgi-bin/mycgi.pl" 
    onSubmit="return submitconfirm()">
name: <INPUT NAME="realname"><BR>
email: <INPUT NAME="email"><BR>
<INPUT TYPE=SUBMIT VALUE="join">
</FORM>

which gives us this form (try submitting it):

name:
email: