function rollDownUp(id) {
	var e = document.getElementById('menu'+id);
	if (e.style.display == 'none') {
		e.style.display = 'block';
	} else {
		e.style.display = 'none';
	}
}

function showFoto(id) {
	window.open('show_foto.php?id='+id+'&w='+screen.width+'&h='+screen.height, 'foto', 'menubar=no, toolbar=no, location=no, scrollbars=no, resizable=yes, status=no, width=800, height=60, left=100, top=50');
}

function setTab(id) {
	for (var i = 1; i <= 3; i++) {
		if (i == id) {
			document.getElementById('tab'+i).style.display = 'block';
			document.getElementById('link'+i).style.fontWeight = 'bold';
		} else {
			document.getElementById('tab'+i).style.display = 'none';
			document.getElementById('link'+i).style.fontWeight = 'normal';
		}
	}
}

function hidepopup() {
	document.getElementById('popup').style.display = 'none';
}

function getWindowHeight() {
	if( typeof( window.innerWidth ) == 'number' ) {
	   	return window.innerHeight;
	} else if( document.documentElement && ( document.documentElement.clientWidth || document.documentElement.clientHeight ) ) {
		return document.documentElement.clientHeight;
	} else if( document.body && ( document.body.clientWidth || document.body.clientHeight ) ) {
		return document.body.clientHeight;
	} else {
		return 0;
	}
}