var font_size = 11;
var font_original = 11;
var min_font = 9;
var max_font = 24;

function loadFontSize() {
	var tmp;
	tmp = parseInt(getCookie('contentFontSize'));
	if(tmp>0) font_size = tmp;
	obj = document.getElementById("contentBody");
  	obj.style.fontSize = font_size+'px';
}

function increaseFont() {
  obj = document.getElementById("contentBody");
  font_size = obj.style.fontSize;
  font_size = parseInt(font_size);
  if (font_size < max_font)  font_size = font_size + 1;
  obj.style.fontSize = font_size+'px';
  setCookie('contentFontSize',font_size,30);
}

function decreaseFont() {
  obj = document.getElementById("contentBody");
  font_size = obj.style.fontSize;
  font_size = parseInt(font_size);
  if (font_size > min_font)  font_size = font_size - 1;
  obj.style.fontSize = font_size+'px';
  setCookie('contentFontSize',font_size,30);
}

function setOriginalFont() {
  obj = document.getElementById("contentBody");
  font_size = font_original;
  obj.style.fontSize = font_size+'px';
  setCookie('contentFontSize',font_size,30);
}

window.onload=new Function("loadFontSize();");