Hi Patric, hope this works - it's untested...
// 'closure' function so click function can see variables
(function(){
// get the subpage1 link once and store it
var subpage1 = $('#subMenu>li:first a');
// set name of class in one place... here!
var current = 'subcurrent';
// get links, excluding first level of links
$('#subMenu ul a').click(function(){
$('a.'+current).removeClass(current);
// add class to link clicked and subpage1 link
$(this).add(subpage1).addClass(current);
});
})();
Good luck!
Joel Birch