function klikUpButton(btnId) {
	//var imgnya='<img src="images/whell-up-01.gif" border="0">';
	//alert('hallo ' + imgnya);
	//alert('UPSTAIR '+btnSekarang);
	document.getElementById('mainNavBox-main-roller').innerHTML='<img src="images/whell-up-02.gif" border="0">';
	gantiButton(btnSekarang, true);
	return false;
}

function klikDownButton(btnId) {
	//var imgnya='<img src="images/whell-down-01.gif" border="0">';
	document.getElementById('mainNavBox-main-roller').innerHTML='<img src="images/whell-down-02.gif" border="0">';
	//alert('hallo DOWN '+btnSekarang); 
	gantiButton(btnSekarang, false);
	return false;
}

function gantiButton(btnNe, upup) {
var nuBtn1;
var nuBtn2;
if ( upup==true ) {
	nuBtn1=btnNe+1;	
	}
	else {
	nuBtn1=btnNe-1;	
	}
nuBtn2=	nuBtn1 + 1;
if ( nuBtn1<0 ) {
	nuBtn1=4;
	nuBtn2=0;
	}
if ( nuBtn1>3 ) {
	nuBtn2=0;
	if ( nuBtn1 > 4 )  {
	  nuBtn1=0;
	  nuBtn2=1;
	}
	
	}
	btnSekarang=nuBtn1;
	waktuTunggu=30;
	//alert('2ganti button btnSekarang['+btnSekarang+']  ::btnNe['+btnNe+']  ::nuBtn1['+nuBtn1+']  ::nuBtn2['+nuBtn2+']');
	document.getElementById('mainNavBox-button-top').innerHTML='<a href="'+siteUrl+'/'+linka[nuBtn1]['link']+'"><img src="images/'+linka[nuBtn1]['images']+'-01.jpg" border="0" alt="-"></a>';
	document.getElementById('mainNavBox-button-right').innerHTML='<a href="'+siteUrl+'/'+linka[nuBtn2]['link']+'"><img src="images/'+linka[nuBtn2]['images']+'-02.jpg" border="0" alt="-"></a>';
resikResik();
}

function resikResik() {
	if ( waktuTunggu>0 ) {
		waktuTunggu=waktuTunggu-1;
		setTimeout("resikResik()", 1000);
	}
	else {
		document.getElementById('mainNavBox-main-roller').innerHTML='&nbsp;';
	}
}