var objMenu = new Array();

function none() {
	}

function is_visible(layerName) {
	if (eval(layerDef+layerName+layerOpt).visibility.toLowerCase() == "visible"
	 || eval(layerDef+layerName+layerOpt).visibility.toLowerCase() ==  "show"
	 )
		return true;
		else return false;
}

function show(obj,cislo) {
	layerName='menu'+cislo;
	if (objMenu[cislo]!=0) objMenu[cislo]=obj;
	if (agent!="unknown") {
		if (!is_visible(layerName))	{
			hideAll();
			eval(layerDef+layerName+layerOpt).visibility = "visible";
			} 
		}

	}

function showL(obj,cislo) {
	layerName='Lmenu'+cislo;
	if (objMenu[cislo]!=0) objMenu[cislo]=obj;
	if (agent!="unknown") {
		if (!is_visible(layerName))	{
			hideAll();
			eval(layerDef+layerName+layerOpt).visibility = "visible";
			} 
		}

	}
	
function hideAll() {
	for (i=1;i<polozek+1;i++) {
		if (is_visible('menu'+i)) {
			eval(layerDef+('menu'+i)+layerOpt).visibility = "hidden";
		
		}
	}
	for (i=1;i<Lpolozek+1;i++) {
			if (is_visible('Lmenu'+i)) {
				eval(layerDef+('Lmenu'+i)+layerOpt).visibility = "hidden";
						}
	}
}


function hideMenu() {
	if (agent!="unknown") hideAll();
	}