var activebutton = 1;
var preloadflag = false;

if(window.event + "" == "undefined") event = null;
function popUp(a,b){ if (parent.frames['main']) if (parent.frames['main'].popUp) parent.frames['main'].popUp(a,b); else return;};
function popDown(a){ if (parent.frames['main']) if (parent.frames['main'].popDown) parent.frames['main'].popDown(a); else return;};

if (document.images) {
	var names = new Array("dummy", "button_1","button_2","button_3","button_4","button_5","button_6","button_7","button_8","button_9");
	var buttons = new Array(2);
	for (m=0; m<=1; m++) {
	buttons[m] = new Image(); }
	buttons[0].src="images/navi_icon.gif";
	buttons[1].src="images/navi_icon_activ.gif";
	preloadflag=true;
}

function currentsection(num) {
	activate(num);
	oldbutton = activebutton;
	activebutton = num;
	deactivate(oldbutton);
}

function activate(num) {
	if (top.nav.document.images && preloadflag) {
		if (top.nav.document.images[names[num]]) top.nav.document.images[names[num]].src = buttons[1].src;
	}
}

function deactivate(num) {
	if (top.nav.document.images && preloadflag && !(num==activebutton)) {
		if (top.nav.document.images[names[num]]) top.nav.document.images[names[num]].src = buttons[0].src;
	}
}

function getPath() {
	return "/topnav/";
}