function SubmitEnter(myfield,e) {
// Checks to see if the Enter key is pressed, 
// in which case it runs the calculation script(s).
	var keycode;
	if (window.event) keycode = window.event.keyCode;
	else if (e) keycode = e.which;
	else return true;

	if (keycode == 13) {
	   CalcCheck();
	   return false;
	   }
	else
	   return true;
}