function show_sub_rub(x) {
	var ls = document.getElementById("last_sub");
	
	var v = document.getElementById("div_"+ls.value);
	if (v) {
		v.style.display = "none";
	}
	
	ls.value = x;
	
	var v = document.getElementById("div_"+x);
	v.style.display = "block";
	
}


function hide_sub_rub_text() {
	var v = document.getElementById("sub_rub_text");
	v.style.display = "none";
	
	var v = document.getElementById("sub_rub_form");
	v.style.display = "block";
}


function check_sub_rub(sender, x) {
	if (sender.checked) {
		// try do add
		if (selected_sub_rubs.length >= 7) {
			sender.checked = false;
			return;
		}
		for (id in selected_sub_rubs) {
			if (selected_sub_rubs[id] == x) {
				sender.checked = false;
				return;
			}
		}
		
		selected_sub_rubs.push(x);
	} else {
		// deselect
		
		var ar = new Array();
		for (id in selected_sub_rubs) {
			if (selected_sub_rubs[id] != x) {
				ar.push(selected_sub_rubs[id]);
			}
		}
		
		selected_sub_rubs = ar;
	}
	
	draw_rubs_text();
}


function draw_rubs_text() {
	str = "";

	//var r = document.getElementById("rubriks");
	//var r_o = document.getElementById("rub_" + r.value);
	//rub_name = r_o.innerHTML;

	for (id in selected_sub_rubs) {
		var l = document.getElementById("lbl_"+selected_sub_rubs[id]);
		//str += rub_name + ": " + l.innerHTML + "<br>";
		str += l.innerHTML + "<br>";
	}
		
	var b = document.getElementById("selected_sub_rub");
	b.innerHTML = str;
}