// JavaScript Document

var active_tab = '1';
var tabs_count = 0;
var tabs_count_max = 10;
var slider_count = 0;
var slider_count_max = 10;

function top_slider_go (tabnr_load) {
	if (tabs_count == 0) { count_tabs(); }
	if (slider_count == 0) { count_slider(); }
	
	var slnr_load = tabnr_load;
				
	for (tb_cnt = 1; tb_cnt <= tabs_count; tb_cnt++) {
		document.getElementById("tab" + tb_cnt).className = 'tab_nonactive'; }
		
	for (sl_cnt = 1; sl_cnt <= slider_count; sl_cnt++) {
		document.getElementById("sl"  + sl_cnt).className = 'sl_nonactive'; }
		
	if (tabnr_load > slider_count) { slnr_load = '1'; }
		
	document.getElementById("tab" + tabnr_load).className = 'tab_active';
	document.getElementById("sl"  + slnr_load).className = 'sl_active';
		
	active_tab = tabnr_load;
}
	
function top_slider_next () {
	if (tabs_count == 0) { count_tabs(); }
	if (active_tab >= tabs_count) {active_tab = '0'}
	top_slider_go (parseInt(active_tab) + 1);
}

function top_slider_prev () {
	if (tabs_count == 0) { count_tabs(); }
	if (active_tab == 1) { active_tab = parseInt(tabs_count) + 1; }
	top_slider_go (parseInt(active_tab) - 1);
}

function count_tabs () {
	for (tb_cnt_main=1;tb_cnt_main<tabs_count_max;tb_cnt_main++){
		if (document.getElementById("tab" + tb_cnt_main)) { tabs_count++; }
	}
}

function count_slider () {
	for (sl_cnt_main=1;sl_cnt_main<slider_count_max;sl_cnt_main++){
		if (document.getElementById("sl" + sl_cnt_main)) { slider_count++; }
	}
}