[jQuery] how to get form data

[bob]

Hi,
I would like to keep jQuery('fo...@name=myform1]') in variable so that
I can utilize it
later on.

var myForm = jQuery('fo...@name=myform1]');

Is there a way I can access checkbox state and check the size?
The following does not work. It gives me 0 even when I some checkboxes
are selected.

alert( myForm.find('inp...@name=day]:checked').size() );

<form name="myForm1" method="post">
        <input type="checkbox" value="1" name="day" /><label>Sun</label>
        <input type="checkbox" value="2" name="day" /><label>Mon</label>
    ...
</form>

<form name="myForm2" method="post">
        <input type="checkbox" value="1" name="day" /><label>Sun</label>
        <input type="checkbox" value="2" name="day" /><label>Mon</label>
    ...
</form>