function swpage(id, qb) {

	var tabid = "tab_" + id;
	var tab = document.getElementById(tabid);
	tab.style.display = "block";

	for (i = 0; i < qb; i++) {
		if (i != id) {
			var tid = "tab_" + i;
			var tb = document.getElementById(tid);
			tb.style.display = "none";
		}
	}
	
	var bid = "numbut_" + id;
	var but = document.getElementById(bid);
	but.style.backgroundColor = "#537085";
	but.style.color = "#ffffff";
	
	for (n = 0; n < qb; n++) {
		if (n != id) {
			var btnid = "numbut_" + n;
			var btn = document.getElementById(btnid);
			btn.style.backgroundColor = "#eeeeee";
			btn.style.color = "#333333";
		}
	}
}