Yeah it seems like it should reference an ID, not a name.
But in Chrome 26.0.1410.43 it looks just fine if saved as .html with or without XHTML1.1 doctype:
Of course I don't have your CSS. And maybe that's the whole problem, maybe there's some "display:none" or "visibility:hidden" or "color:blue" or whatever in there that makes the text practically invisible. I'd look there next but tbh since I can't reproduce the problem it's just a guess.
If you want I could look at your files if you send them over.
That's what you get for using WYSIWYG Dreamweaver shyte
Oh another thing, it's clear from the button text that those are not the same documents, one time it's "send" and another time it's "Send", unless of course you changed that in the meantime. Just FYI.