title: How to set the default (submit) button for a page loaded in an iPhone UIWebView (stringByEvaluatingJavaScriptFromString?)
body: <p>I'm using a UIWebView to load an HTML form in my iPhone app.</p>
  
  <p>The form has three submit buttons (and selecting "Go" on the iPhone keypad selects the first submit button).</p>
  
  <p>I'm assuming that I can set a different "default" submit button with Javascript injection into the downloaded form, but I don't know Javascript well. </p>
  
  <p>Does anyone know how to change the default submit button ?</p>