function loginbox_changetab(div_id, div_to_hide_id, tab_class) {
	var n1, n2, tabs;
	n1 = document.getElementById(div_id);
	n2 = document.getElementById(div_to_hide_id);
	tabs = document.getElementById('belepveTabs');
	if (!n1 || !n2 || !tabs) return;
	
	tabs.className = 'tabs ' + tab_class;
	/*n1.style.display = '';
	n2.style.display = 'none';*/
	
	dojo.removeClass( n1, 'nemlatszik' );
	dojo.addClass( n2, 'nemlatszik' );
}