jQuery.preloadImages = function(){
	for(var i = 0; i<arguments.length; i++){
		jQuery("<img>").attr("src", arguments[i]);
	}
};
 // Usage
$.preloadImages("/images/lib_image/size-s.jpg", "/images/lib_image/size-m.jpg", "/images/lib_image/size-l.jpg", "/images/lib_image/bg-s.jpg", "/images/lib_image/bg-m.jpg", "/images/lib_image/bg-l.jpg");
$(function(){
	$('#fontctrl').html('<dl id="size"><dt>■文字サイズ</dt><dd class="sizeS" id="small" title="100 ％で表示">小</dd><dd class="sizeM" id="medium" title="110 ％で表示">中</dd><dd class="sizeL" id="large" title="120 ％で表示">大</dd></dl>');

	var currentstyle = readCookie('fontStyle');
   if (currentstyle){
   	switchFont(currentstyle, "1");
   }else {
		currentstyle="fontS";
   	switchFont(currentstyle, "1");
	};
	 
   $(".sizeL").click(function(){
   switchFont("fontL", "0");
   return false;
   });
   $(".sizeM").click(function(){
	 switchFont("fontM", "0");
   return false;
   });
   $(".sizeS").click(function(){
   switchFont("fontS", "0");
   return false;
  });
});
function switchFont(className, loadFlg){
  if(navigator.userAgent.indexOf('Mac') != -1){
    $("body").removeAttr("class").addClass(className+"mac");
  }else{
    $("body").removeAttr("class").addClass(className);
  }
   if(loadFlg == "0") { createCookie('fontStyle', className, 365); }
	 $(".sizeS").css("background-image","url(/images/lib_image/size-s.jpg)");
	 $(".sizeM").css("background-image","url(/images/lib_image/size-m.jpg)");
	 $(".sizeL").css("background-image","url(/images/lib_image/size-l.jpg)");
	 switch(className){
		case "fontS":
	 $(".sizeS").css("background-image","url(/images/lib_image/bg-s.jpg)");
//	 	$("li.sizeS").css("color","#ff0000");
		break;
		case "fontM":
	 $(".sizeM").css("background-image","url(/images/lib_image/bg-m.jpg)");
//	 	$("li.sizeM").css("color","#ff0000");
	  break;
		case "fontL":
	 $(".sizeL").css("background-image","url(/images/lib_image/bg-l.jpg)");
//	 	$("li.sizeL").css("color","#ff0000");
		break;		 
	 }

};

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;
}