function DetectEnterPressed(e)
  {
	var characterCode
	if(e && e.which)
	{
		e = e
		characterCode = e.which
	}
	else
	{
		e = event
		characterCode = e.keyCode
	}
	if (characterCode == 13)
	{
		__doPostBack('SimpleSearch1$btnSearch','')
	}	
  }