function cnj_select(sel, targetstr) {
  var index = sel.selectedIndex;
    if (sel.options[index].value != null) {
	  if (targetstr == '_blank') {
		window.open(sel.options[index].value, 'remote');
		} else {
		var frameobj = eval(targetstr);
		frameobj.location = sel.options[index].value;
        }
    }
}