/*--------------------------------------------------------------------
 *
 * original script http://www.lllcolor.com/jQuery/demo/demo01b.html
 *
 --------------------------------------------------------------------*/
$(function(){
   $("#header_nav").after("<div id=\"header_font\">\n  <p class=\"sizeS\"><a href=\"#\">小</a></p>\n  <p class=\"sizeM\"><a href=\"#\">中</a></p>  <p class=\"sizeL\"><a href=\"#\">大</a></p></div>");
   var currentstyle = readCookie('fontStyle');
   if (currentstyle){
   switchFont(currentstyle);
   };
   $(".sizeL a").click(function(){
   switchFont("fontL");
   return false;
   });
   $(".sizeM a").click(function(){
   switchFont("fontM");
   return false;
   });
   $(".sizeS a").click(function(){
   switchFont("fontS");
   return false;
  });
});
function switchFont(className){
   $("#wrapper").removeAttr("class").addClass(className);
   $("#header_font p a").removeClass("clicked");
   var bt_class = className.replace( "font", "size" );
   $("." + bt_class + " a").addClass("clicked");
   createCookie('fontStyle', className, 365);
};
// cookie script http://www.quirksmode.org/js/cookies.html
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=/";
}
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;
}