/******************************************************
 * Font-size Functions
 ******************************************************/
function fontsize_change(size) {
  var oBody;
  if (document.getElementsByTagName) {
    oBody = document.getElementsByTagName('body')[0];
    oBody.style.fontSize = size;
    /*lCells = document.getElementsByTagName('td');
    for(i = 0; i < lCells.length; i++) {
      lCells[i].style.fontSize = '1em';
    }*/
    setCookie('fontsize', size, 180, "/");
  }
}

function fontsize_init() {
  var size = getCookie('fontsize', '75%');
  fontsize_change(size);
}

/******************************************************
 * Cookie Functions
 ******************************************************/

function setCookie(name,value,days,path,domain,secure) {
  var expires, date;
  if (typeof days == "number") {
    date = new Date();
    date.setTime( date.getTime() + (days*24*60*60*1000) );
		expires = date.toGMTString();
  }
  document.cookie = name + "=" + escape(value) +
    ((expires) ? "; expires=" + expires : "") +
    ((path) ? "; path=" + path : "") +
    ((domain) ? "; domain=" + domain : "") +
    ((secure) ? "; secure" : "");
}

function getCookie(name, value) {
  var nameq = name + "=";
  var c_ar = document.cookie.split(';');
  for (var i=0; i<c_ar.length; i++) {
    var c = c_ar[i];
    while (c.charAt(0)==' ') c = c.substring(1,c.length);
    if (c.indexOf(nameq) == 0) {
      return unescape( c.substring(nameq.length, c.length) );
    }
  }
  value = ((value ) ? value : null);
  return value;
}

function deleteCookie(name,path,domain) {
  if (getCookie(name)) {
    document.cookie = name + "=" +
      ((path) ? "; path=" + path : "") +
      ((domain) ? "; domain=" + domain : "") +
      "; expires=Thu, 01-Jan-70 00:00:01 GMT";
  }
}