function changeNavigator(obj, nav)
{
	total  = config['total'] - 1;
	
	if(nav == "next")
		if(total == config['current'])
			config['current'] = 0;
		else
			config['current'] += 1;
	else
		if(config['current'] == 0)
			config['current'] = total;
		else
			config['current'] -= 1;
		
	objData = eval("img_" + config['current']);
	obj1 = document.getElementById('link').href = objData.lnk;
	obj2 = document.getElementById('obj').src   = objData.src;
}