function SwitchPage(cur,obj){
  if(obj.length > 0){
    var el = document.getElementById(obj);
    if(el.style.display != "block"){
      el.style.display = "block";
    }else{
      el.style.display = "none";
    }
  }

  var ar = document.getElementById("masterdiv").getElementsByTagName("span");
  for (var i=0; i<ar.length; i++){
    if (ar[i].id != obj)
      ar[i].style.display = "none";
  }
}

function writeCookie(name,value,days)
{
	if (days)
	{
		var date = new Date();
		date.setTime(date.getTime()+(days*24*60*60*1000));
		var expires = "; expires="+date.toGMTString();
	}
	else var expires = "";
	document.cookie = name+"="+value+expires+"; path=/";
}

function readCookie(name)
{
	var nameEQ = name + "=";
	var ca = document.cookie.split(';');
	for(var i=0; i < ca.length; i++)
	{
		var c = ca[i];
		while (c.charAt(0)==' ') c = c.substring(1,c.length);
		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
	}
	return null;
}

function readScore(name)
{
	if(readCookie('userid')){
		var score = readCookie(name);
		if(score){
			return score;
		}
	}
	return 'NA';
}