flag = false;
function treeMenu(tName) {
  tMenu = document.all[tName].style;
  if(tMenu.display == 'none') tMenu.display = "block";
  else tMenu.display = "none";
}
 
 
 
/*

function menub() {
	for(var i = 0; i < arguments.length; i++){
		var menu_big = document.getElementsByName(arguments[i])[0];
		var menu_bigb = menu_big;
		while (menu_bigb.tagName != "DIV"){
			menu_bigb = menu_bigb.nextSibling;
		}

		if(menu_big.name == 'btn_1'){
				menu_bigb.style.display = "none"	;
				menu_big.firstChild.src = "../img/icon_big_plus.jpg";
		}

		addEvent(menu_big, 'click', function(e){
			if(!e){ e = window.event;}
			e = getTarget(e).parentNode;
			
			var menu_bigb = e;
			while (menu_bigb.tagName != "DIV"){
				menu_bigb = menu_bigb.nextSibling;
			}

			if(menu_bigb.style.display == "none"){
				menu_bigb.style.display = "block";
				e.firstChild.src = "../img/icon_big_minus.jpg";
			}else{
				menu_bigb.style.display = "none"	;
				e.firstChild.src = "../img/icon_big_plus.jpg";
			}
		});		
	}
}



function menus(){
	var menu_small = document.getElementsByTagName('div');
	for( var n = 0; menu_small.length > n;  n++){
		if( menu_small[n].className == 'b_l1' ){
			var s = menu_small[n]
			var menu_bigb = s;
				while (menu_bigb.tagName != "DIV" || menu_bigb.className == 'b_l1'){
				menu_bigb = menu_bigb.nextSibling;
			}
			
			menu_bigb.style.display = "none"	;
			s.firstChild.src = "../img/icon_min_plus.jpg";
			s.firstChild.style.cursor = "pointer";
			
			addEvent(s.firstChild, 'click', function(e){
				if(!e){ e = window.event;}
				e = getTarget(e);
				
				var menu_sc = 0; 
				while ((menu_sc < 4) && (e.className != 'b_l1')){
					e = e.parentNode;
					menu_sc++;
				}
		
				var menu_bigb = e;			
				while (menu_bigb.tagName != "DIV" || menu_bigb.className == 'b_l1'){
					menu_bigb = menu_bigb.nextSibling;
				}
		
				if(menu_bigb.style.display == "none"){
					menu_bigb.style.display = "block";
					e.firstChild.src = "../img/icon_min_minus_over.jpg";
				}else{
					menu_bigb.style.display = "none"	;
					e.firstChild.src = "../img/icon_min_plus_over.jpg";
				}
			});	
		
			addEvent(s, 'mouseover', function(e){
				if(!e){ e = window.event;}
				e = getTarget(e);
				var menu_sc = 0; 
				while ((menu_sc < 4) && (e.className != 'b_l1')){
					e = e.parentNode;
					menu_sc++;
				}
				e.style.backgroundColor = "#E0F5F8";
				// a Žæ“¾
				getMenuBtn(e).style.color = "#0091B7";

				var menu_bigb = e;			
				while (menu_bigb.tagName != "DIV" || menu_bigb.className == 'b_l1'){
					menu_bigb = menu_bigb.nextSibling;
				}
		
				if(menu_bigb.style.display == "none"){
					e.firstChild.src = "../img/icon_min_plus_over.jpg";
				}else{
					e.firstChild.src = "../img/icon_min_minus_over.jpg";
				}
			}	);
		
			addEvent(s, 'mouseout', function(e){
				if(!e){ e = window.event;}
				e = getTarget(e);
				
				var menu_sc = 0; 
				while ((menu_sc < 4) && (e.className != 'b_l1')){
					e = e.parentNode;
					menu_sc++;
				}
				e.style.backgroundColor = "#FFF";
				getMenuBtn(e).style.color = "#000";
				
				while (menu_bigb.tagName != "DIV" || menu_bigb.className == 'b_l1'){
					menu_bigb = menu_bigb.nextSibling;
				}
		
				if(menu_bigb.style.display == "none"){
					e.firstChild.src = "../img/icon_min_plus.jpg";
				}else{
					e.firstChild.src = "../img/icon_min_minus.jpg";
				}
			});
		}
	}
}*/