function submitenter(myfield,e)
{
var keycode;
if (window.event) keycode = window.event.keyCode;
else if (e) keycode = e.which;
else return true;

if (keycode == 13)
   {
   myfield.form.submit();
   return false;
   }
else
   return true;
}

function addOpenSearch() 
{
 if (window.external && ("AddSearchProvider" in window.external)) {
   // Firefox 2 and IE 7, OpenSearch
   window.external.AddSearchProvider("http://www.howtosayin.com/opensearchhowtosayin.xml");
 } 
  else {
   // No search engine support (IE 6, Opera, etc).
   alert("Your browser is not supported!");
 }
}