[Javascript] Force String to Float?

[tedd at sperling.com (tedd)]

Hi gang:

I can do this:

var one = document.autoSumForm.a1.value;
var two = document.autoSumForm.d1.value;
document.autoSumForm.t1.value = one * two;

and everything is OK.

But, if I do this:

var one = document.autoSumForm.a1.value;
var two = document.autoSumForm.d1.value;
document.autoSumForm.t1.value = one + two;

the result is not what I expect. Instead of getting 2 + 3 = 5, I get 
2 + 3 = 23.

So, how do I force a string to a float?

Cheers,

tedd

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