p.s.: This will all be a lot easier if you don't have any duplicated field names, even in different <form>s.
And I do have to ask why you think you need separate <form>s on the page. Generally, I recommend a single <form>, with the <form> tag right after <body> and the </form> right before </body>.
Is there something magic about the separate <form>s that implies how they are used by, say, server-side code?
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A pessimist sees the glass as half empty.
A realist drinks it no matter how much there is.