Need Help changing fontcolor in a Numeric Field when a number < 70.

Hi all,

I am not so good with Javascript or FormCalc. I am mostly a VB6 programmer. I have attempted a number of different expressions and statements to get my Numeric Field value to change color when it meets a condition. For example;

If TotalScore.value < 70 then
Totalscore.value.fontcolor = Red

Else
TotalScore.value.fontcolor = Blue

End If

I know this isn't proper script, but displays what i am trying to achieve. I have spent countless hours researching this probably simple task. However, I have
not been able to find a javascript example to make this happen. By the way in the editor Event drop down menu, which do I select Change, Keydown, Initialize, Validate? I would greatly appreciate the help. It's the last item left to complete my custom form.

Thanks in advance,

Robert