function bigger_text()
{
   var content = document.getElementById("content");
   var font_size = parseInt(content.style.fontSize);

   font_size = font_size + 10;
   content.style.fontSize = font_size + "%";
   set_cookie("fontsize", font_size);
}

function smaller_text()
{
   var content = document.getElementById("content");
   var font_size = parseInt(content.style.fontSize);
   
   font_size = font_size - 10;
   content.style.fontSize = font_size + "%";
   set_cookie("fontsize", font_size);
}

function set_cookie(name, value)
{
   var next_year = new Date();
   next_year.setFullYear(next_year.getFullYear() + 1);
   
   document.cookie = name + "=" + escape(value) +
                     "; expires=" + next_year.toGMTString() +
                     "; path=/";
}

function set_font_size()
{
   var cookies = document.cookie;
   var pos = cookies.indexOf("fontsize=");
      
   if (pos != -1)
   {
      var start = pos + 9;
      var end = cookies.indexOf(";", start);
      if (end == -1) end = cookies.length;
      font_size = unescape(cookies.substring(start, end));
      
      var content = document.getElementById("content");
      content.style.fontSize = font_size + "%";
   }
}


function set_popup_font_size()
{
   var cookies = document.cookie;
   var pos = cookies.indexOf("fontsize=");
      
   if (pos != -1)
   {
      var start = pos + 9;
      var end = cookies.indexOf(";", start);
      if (end == -1) end = cookies.length;
      font_size = unescape(cookies.substring(start, end));
      
      var popupcontent = document.getElementById("popupcontent");
      popupcontent.style.fontSize = font_size + "%";
   }
}