function onLoad (pageName) {
    if (pageName) {
        var expirationTime = 1/(60*24);    // One minute.
        setCookie('pageName', pageName, expirationTime);
        setCookie('scrollY',  0, expirationTime);
    }
    
    var currentLocation = "" + window.location;
    var newLocation = currentLocation.replace(/\/[^\/]*$/, '');
    if (newLocation != currentLocation) {
        window.location.replace(newLocation);
    }
}

function setCookie (key,value,daysUntilExpiration) {
    var expires = "";
	if (daysUntilExpiration) {
		var date = new Date();
		date.setTime(date.getTime()+(daysUntilExpiration*24*60*60*1000));
		expires = "; expires="+date.toGMTString();
	}

    document.cookie = key + '=' + escape(value) + expires + '; path=/';
}