function css() {

	/* go on for IE in generall */
	if($.browser.msie){
		
		/* take care IE 6 only */
		if($.browser.version <= 6) {
		
		}
	}
	
	$('#nav li').each(function(n){
		n = n+1;
		$(this).addClass('item-'+n);
	});
	
}

$(document).ready(css);