function increaseFontSize() {
  var className = getClassName();
  if ('small' == className) {
    d('MainText').className = 'normal';
	createCookie('fsize','normal',1);
  }
  else if ('normal' == className) {
    d('MainText').className = 'large';
	createCookie('fsize','large',1);
  }
  resize_columns();
}

function decreaseFontSize() {
  var className = getClassName();
  if ('normal' == className) {
    d('MainText').className = 'small';
	createCookie('fsize','small',1);
  }
  else if ('large' == className) {
    d('MainText').className = 'normal';
	createCookie('fsize','normal',1);
  }
  resize_columns();
}

function getClassName() {
  return d('MainText').className;
}

function d(id) {
  return document.getElementById(id);
}

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=/";
}

$(document).ready(function(){
	init_fontsize();
});

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 init_fontsize()
{
	var fsize = readCookie('fsize');
	if(fsize)
	{
		d('MainText').className = fsize;
	}
}