var pos_y = -150

function scrollLogo(){
	e = document.getElementById('logo');
	t = 10;
	pos_y = pos_y + 1;
	e.style.top = pos_y + 'px';
	if (pos_y < 10)
		window.setTimeout("scrollLogo()",t);
}

function popup(url){
	f1 = window.open(url, "Tarifdetails", "width=455,height=600,left=100,top=200,scrollbars=yes");
   	f1.focus();
}

function showInfo(id){
	document.getElementById(id).style.visibility = 'visible';
	document.getElementById(id).style.display = 'block';
}

function hideInfo(id){
	document.getElementById(id).style.visibility = 'hidden';
	document.getElementById(id).style.display = 'none';
}