var myrules = {
'.popup' : function(el){
var href = el.getAttribute('href');
var wParam="toolbar=0,directories=0,location=0,status=0,menubar=0,scrollbars=0,resizable=0";
if (href){
el.onclick = function(){newWin=window.open(href,"Win","toolbar=0,directories=0,location=0,status=0,menubar=0,scrollbars=1,resizable=1");return false;  }
el.onkeypress = function(){ window.open(href);return false; }
}
}
};
Behaviour.register(myrules);