Greetings Monks,
I am trying to use WWW::Mechanize to submit some forms to a web site, but the form authors have got it in for me. They have some radio buttons which look a bit like this:

<input type='radio' name='button1' value='button1' onClick='SomeJavasc
+riptfunction()' checked>
<input type='radio' name='button2' value='button2' onClick='SomeJavasc
+riptfunction()'>
<input type='radio' name='button3' value='button3' onClick='SomeJavasc
+riptfunction()'>
[download]

Now, the SomeJavascriptfunction() is designed to make sure that only one of these radio buttons is selected. It makes no sense to me why they didn't just use the same value for each radio button, ensuring that the browser did that for them, but I have no control over the site. So, my question is, how can I uncheck button1 with mech, if I want to check button3? I can't see a 'clear' function anywhere in WWW::Mechanize anywhere. Checking button3 is as easy as

$mech->fields('button3'=>'button3');
[download]

But that leaves button1 checked.