//font size change
var fs_fontsize;

function set_font_size_change(fsc){
	var expires = new Date();
	expires.setTime(expires.getTime() + 365*24*60*60*1000);
	setCookie(fs_key,fsc,"expires=" + expires.toGMTString());
	location.reload();
}

function setCookie(key,val,limit){
	var tmp = key + "=" + escape(val) + ";path=/;";
	tmp += limit;
	document.cookie = tmp;
}

function get_font_size_change(key){
	var tmp = document.cookie+";";
	var i = tmp.indexOf(key,0);
	if (i != -1 && tmp.charAt(i + key.length) == "="){
		i += (key.length + 1);
		var j = tmp.indexOf(";",i);
		var value = tmp.substring(i,j);
		return (unescape(value));
	}else{
		return "";
	}
}

new function(){

	var init_font_size_btn = function(){
		//ボタン
		if (fs_fontsize == "middle"){
			document.getElementById("font_big_btn").src = big_button_off;
			document.getElementById("font_middle_btn").src = middle_button_on;
			document.getElementById("font_small_btn").src = small_button_off;
			//選択されたボタン(中)に対してマウスアウトした際の処理を行わない
			document.getElementById("font_middle_btn").setAttribute("onmouseout", "new Function('void(0)')");
		}else if (fs_fontsize == "big"){
			document.getElementById("font_big_btn").src = big_button_on;
			document.getElementById("font_middle_btn").src = middle_button_off;
			document.getElementById("font_small_btn").src = small_button_off;
			//選択されたボタン(大)に対してマウスアウトした際の処理を行わない
			document.getElementById("font_big_btn").setAttribute("onmouseout", "new Function('void(0)')");
		}else{
			document.getElementById("font_big_btn").src = big_button_off;
			document.getElementById("font_middle_btn").src = middle_button_off;
			document.getElementById("font_small_btn").src = small_button_on;
			//選択されたボタン(小)に対してマウスアウトした際の処理を行わない
			document.getElementById("font_small_btn").setAttribute("onmouseout", "new Function('void(0)')");
		}
	
	}

	function addEvent(elm,listener,fn){
		try{
			elm.addEventListener(listener,fn,false);
		}catch(e){
			try{
				elm.attachEvent("on"+listener,fn);
			}catch(e){
			}
		}
	}
	addEvent(window,"load",init_font_size_btn);
}