MVC :: Ajax.beginform Using Multiple Submit Doesn't Work From Firefox / Opera / Chrome

this code does not work in any other browser other than Internet Explorer, I could tell that happens, I've seen that in MVC2 was a known bug, I thought I updated to MVC 3 this was corrected, but still the same.The problem itself is that it shows as null ActionResult and I have no idea how to detect, the code I use is:

<% using (Ajax.BeginForm("CmdApply", new AjaxOptions { HttpMethod = "Post", UpdateTargetId = "RenderPartialId", Confirm = "Seguro de continuar", OnComplete = "showCurrentPage", OnBegin = "ShowBeginSearch", OnSuccess = "CloseDialogSearch" }))
{%>
<input id="GoPageSubmit" type="submit" name="GoPageSubmit" value="<%=Resources.s2olMVC.Search_GoPageTitle %>" />
<input id="SubmitNext" type="submit" name="SubmitNext" value=">"/>
<input id="SubmitNextLast" type="submit" name="SubmitNextLast" value=">>" />
<%}
%>

In ActionResult, the two n submit it recognizes, as if none, shown in Null There is another way to implement this type of submit? In Internet Explorer everything works fine.