var nom = <%=NumNiv2%>; // Number of menus
var usePictures = 1; // use pictures?  1 = yes, 0 = no
var ttls = new Array(); // An array for the title objects
var subs = new Array(); // An array for the submenu objects
var lastn;
var lastmove;

if (document.layers) {
	visible = 'show';
	hidden = 'hide';
}
else
if (document.all) {
	visible = 'visible';
	hidden = 'hidden';
}
for (var i = 1; i <= nom; i++) {
	ttls[i] = ('title' + i);
	subs[i] = ('submenu' +i);
}

function picopen(n) {
	title = ('title' + n);
	pic = ('pic' + n);
	if (document.layers) {
	document.layers[title].document.images[pic].src = "../images/opened.gif";
	}
	else if (document.all) {
		document.all(pic).src = "../images/opened.gif";
	}
}

function picclose(n) {
	title = ('title' + n);
	pic = ('pic' + n);
	if (document.layers) {
		document.layers[title].document.images[pic].src = "../images/closed.gif";
	}
	else if (document.all) {
		document.all(pic).src = "../images/closed.gif";
   }
}

lastn = (nom + 1);
lastmove = 0;

function lasttoggle(n,move) {
	if (n <= nom) {
		menu = ('submenu' + n);
		if (document.layers) {
			submenu = document.layers[menu];
		}
		else if (document.all) {
			submenu = document.all(menu).style;
		}
		if (submenu.visibility == visible) {
			submenu.visibility = hidden;
			picclose(n); // Remove this if you don't use pictures
			for (var i = (n+1); i <= nom; i++) {
				if (document.layers) {
					if (document.layers[ttls[i]]) {
						document.layers[ttls[i]].top -= move;
					}	
					if (document.layers[subs[i]]) {
						document.layers[subs[i]].top -= move;
					}	
				}
				else if (document.all) {
					if (document.all(ttls[i])) {
						document.all(ttls[i]).style.pixelTop -= move;
					}
					if (document.all(subs[i])) {
						document.all(subs[i]).style.pixelTop -= move;
					}	
				}
			}
		}
	}
}

function toggle(n,move) {
	menu = ('submenu' + n);
	if (document.layers) {
		submenu = document.layers[menu];
	}
	else if (document.all) {
		submenu = document.all(menu).style;
	}
	if (submenu.visibility == visible) {
		submenu.visibility = hidden;
		if (usePictures) 
			picclose(n);
		for (var i = (n+1); i <= nom; i++) {
			if (document.layers) {
				if (document.layers[ttls[i]]) {
					document.layers[ttls[i]].top -= move;
				}	
				if (document.layers[subs[i]]) {
					document.layers[subs[i]].top -= move;
				}	
			}
			else if (document.all) {
				if (document.all(ttls[i])) {
					document.all(ttls[i]).style.pixelTop -= move;
				}    
				if (document.all(subs[i])) {
					document.all(subs[i]).style.pixelTop -= move;
				}
			}
		}
	}
	else {
		submenu.visibility = visible;
		if (usePictures) 
			picopen(n);
		if (lastn != n) {
			lasttoggle(lastn,lastmove);
		}
		for (var i = (n+1); i <= nom; i++) {
			if (document.layers) {
				if (document.layers[ttls[i]]) {
					document.layers[ttls[i]].top += move;
				}
				if (document.layers[subs[i]]) {
					document.layers[subs[i]].top += move;
				}	
			}
			if (document.all) {
				if (document.all(ttls[i])) {
					document.all(ttls[i]).style.pixelTop += move;
				}	
				if (document.all(subs[i])) {
					document.all(subs[i]).style.pixelTop += move;
				}
			}
		}
	}
	lastn = n;
	lastmove = move;
}