function PopUp(url){window.open(url,'popupWindow','toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=no,copyhistory=no,width=450,height=500,screenX=150,screenY=100,top=100,left=100')}
function showMenu(tab){$$('.tab').each(function(s){s.className="tab";});$('tab_'+tab).className="tab active";$$('.menu_bar').each(function(s){s.hide();});$('tertiary_'+tab).show();}