Question : Moo Tools to Uncheck a Radio Button

I am trying to uncheck a radio button using javascript.

It works if I do the following

1:	document.myFormName.myRadioName[0].checked = false;

But I would like to use a variable instead having to specify the name.  The following code is what I'm trying, but I can't get the syntax correct.  

1: 2:

var myVariable = 'myRadioName'; document.myFormName.eval(myVariable)[0].checked = false.

P.S.  If there is a way to do this with mootools, that would be even better.

Thanks,
Julie

Answer : Moo Tools to Uncheck a Radio Button

These pages are the best reference:
http://msdn.microsoft.com/en-us/library/exy1facf.aspx
http://msdn.microsoft.com/en-us/library/kbs280h1.aspx