function show(name){
	if (document.getElementById(name)){
		document.getElementById(name).style.visibility='visible';
	}
}

function hide(name){
	if (document.getElementById(name)){
		document.getElementById(name).style.visibility='hidden';
	}
}

function fontSize(size){
	var content = document.getElementById('content');
	var form = document.getElementById('LB_Form');
	var normal = "1.2em";
	var large = "1.5em";
	var xlarge = "1.9em";
	
	content.style.fontSize= eval(size);
	form.style.fontSize= eval(size);
	setCookie(size);
}

function setCookie(size) {  
    var name = "mfp_session";
    var value = 'normal';
	if(size){value = size;}
    writeSessionCookie (name, value);
}

function setFontSize(){
  var name = "mfp_session";
  fontSize(getCookieValue (name));
}

function getCookieValue (cookieName) {
  var exp = new RegExp (escape(cookieName) + "=([^;]+)");
  if (exp.test (document.cookie + ";")) {
    exp.exec (document.cookie + ";");
    return unescape(RegExp.$1);
  }
  else return false;
}

function writeSessionCookie (cookieName, cookieValue) {
    document.cookie = escape(cookieName) + "=" + escape(cookieValue) + "; path=/";
    return true;
}

function init(){
  if (getCookieValue ("mfp_session")){
	setFontSize();
  } else {
	setCookie("normal");
}	
}