var _max_scroll_menu = 0;
var _obj_arr_scroll_menu = new Array();
var _action_scroll_menu = 8;
var _scroll_menu_timer;

function init_scroll_menu(){
	var arr_tag = document.getElementsByTagName("div");
	var i = 0;
	for (var key in arr_tag) {
		var obj = arr_tag[key];
		if( obj.className == "second-level" ){
			if( _max_scroll_menu > obj.offsetHeight ) _max_scroll_menu = obj.offsetHeight;
			_obj_arr_scroll_menu[i] = obj;
			//obj.style.height = "0px";
			i++;
		}
	}
}

function scroll_menu_do(){
	//alert("Пункт 1");
	var do_it = false;
	if( _action_scroll_menu > 0 ){
		//alert("Пункт 2");
		for (var key in _obj_arr_scroll_menu) {
			var obj = _obj_arr_scroll_menu[key];
			if( obj.offsetHeight + _action_scroll_menu < _max_scroll_menu ){
				obj.style.height = obj.offsetHeight + _action_scroll_menu + "px";
				do_it = true;
			}else{
				obj.style.height = _max_scroll_menu + "px";
			}
		}
	}else{
		for (var key in _obj_arr_scroll_menu) {
			var obj = _obj_arr_scroll_menu[key];
			if( obj.offsetHeight + _action_scroll_menu > 0 ){
				obj.style.height = obj.offsetHeight + _action_scroll_menu + "px";
				do_it = true;
			}else{
				obj.style.height = "0px";
			}
		}
	}
	if( do_it ){
		_scroll_menu_timer = setTimeout("scroll_menu_do()",20);
	}
}

function scroll_menu(ind){
		clearTimeout(_scroll_menu_timer);
		_action_scroll_menu = ind;
		scroll_menu_do();
}