function createCookie(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=/; domain=.charlesprogers.com;";
}

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 eraseCookie(name){
  createCookie(name,"",-3);
}