//set font size

var fs_key = "fontsize";
var fs_big = 95;
var fs_middle = 85;
var fs_small = 75;

//set button image

var big_button_on = "/common/img/head_btn_fontsize03_on.gif";
var big_button_off = "/common/img/head_btn_fontsize03_off.gif";
var middle_button_on = "/common/img/head_btn_fontsize02_on.gif";
var middle_button_off = "/common/img/head_btn_fontsize02_off.gif";
var small_button_on = "/common/img/head_btn_fontsize01_on.gif";
var small_button_off = "/common/img/head_btn_fontsize01_off.gif";