$(document).ready(function(){
    $("body").css("font-size",$.cookie('fontsize'));
	if($.cookie('fontsize') == '10px')
	{
	    $("#font_small").css("background-position","-40px -20px");
		$("#font_middle").css("background-position","-20px 0px");
		$("#font_large").css("background-position","0px 0px");
	}
	else if($.cookie('fontsize') == '14px')
	{
	    $("#font_small").css("background-position","-40px 0px");
		$("#font_middle").css("background-position","-20px 0px");
		$("#font_large").css("background-position","0px -20px");
	}
	else
	{
	    $("#font_small").css("background-position","-40px 0px");
		$("#font_middle").css("background-position","-20px -20px");
		$("#font_large").css("background-position","0px 0px");	}
});
function font(size,style){
    $("body").css("font-size",size);
	if(style=='small')
	{
	    $("#font_small").css("background-position","-40px -20px");
		$("#font_middle").css("background-position","-20px 0px");
		$("#font_large").css("background-position","0px 0px");
	}
	else if(style=='middle')
	{
	    $("#font_small").css("background-position","-40px 0px");
		$("#font_middle").css("background-position","-20px -20px");
		$("#font_large").css("background-position","0px 0px");
	}
	else if(style=='large')
	{
	    $("#font_small").css("background-position","-40px 0px");
		$("#font_middle").css("background-position","-20px 0px");
		$("#font_large").css("background-position","0px -20px");
	}
    $.cookie("fontsize",size,{expires:30,path:'/'});//.cookie(name.value,{expires:保存days,path:有効パス})
    $.cookie("style","font_"+style+"_on",{expires:30,path:'/'});//.cookie(name.value,{expires:保存days,path:有効パス})
	//document.write($.cookie('style'));//読み出し
}