Submitting a Form upon Pressing the Enter Key

It is very common on web forms that a page is desired to submit its form when a user presses the Enter key while the focus in a certain or any text box. This is typically done using JavaScript. I want to share how it's done as it can be very useful. In essence all that is done is that every time a user presses a key, a JavaScript code checks if the key pressed is the Enter key. If so it submits the form to the server, otherwise it does nothing. The following is a snippet of the code would look like:

On the JavaScript side

function enter_submit(pevent)
{
   if(window.event) //Internet Explorer
   {
      if(myEvent.keyCode == 13) //check enter was pressed
      {
         document.formname.submit();
         //or __doPostBack("",''); 
  return;
      }
   }
   else if(pevent.which) // Netscape/Firefox/Opera 
   {
      var pressed = pevent.which; 
      if(pressed == 13)
         document.formname.submit();
         //or __doPostBack('','');
   } 
}

On the HTML or ASP .NET side

<asp:Textbox ID="txtPassword" runat="server" onkeypress="javascript:enter_submit(event);/>

<input id="inPassword" type="password" onkeypress="enter_submit(event);"/>