function go(a) {
	location.href=a;
	}

//**********************************************************

var objMenu = new Array();

//**********************************************************
// obarvuje bunky na pozadovanou barvu;

function cSet(obj,color) {
	if (color=="") color='none';
	obj.style.backgroundColor=color;
	}

function fSet(obj,color) {
	if (color=="") color='none';
	obj.style.font=color;
	}

function bSet(obj,color,style) {
	obj.style.borderStyle=style;
	obj.style.borderColor=color;

	}


//**********************************************************

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))	{
			cSet(obj,mainBgColor1);
			bSet(obj,mainBorderColor1,mainBorderStyle1);
			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";
			if (objMenu[i]!=0) {
				cSet(objMenu[i],mainBgColor2);
				bSet(objMenu[i],mainBorderColor2,mainBorderStyle2);
				}
		}
	}
}


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