/*-----------------------------------------------------------------------
 Cookie制御
-----------------------------------------------------------------------*/
function createCookie(name,value) {
	var expires = 'expires=Tue, 1-Jan-2030 00:00:00 GMT';
		//2030年1月1日（火）を有効期限に指定（無期限）
	document.cookie = name + '=' + value + '; ' + expires + '; path=/';
}

function readCookie(name) {
  var nameEQ = name + "=";
  var cItem = document.cookie.split(";");
  for(var i=0, l=cItem.length; i<l; i++) {
    var c = cItem[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;
}

/*-----------------------------------------------------------------------
 [文字サイズ変更]
 -----------------------------------------------------------------------*/
var fontSize = {};

// Cookie[font_size]の値を返す
fontSize.value = function() {
	var c = readCookie("style");
	switch(c) {
		case "L": return "L";
		case "S": return "S";
		default: return "M";
	}
};

fontSize.setStyle = function(fValue) {
	var value = "M";

	if(fValue == "S") {		value = "S";
	} else if(fValue == "L") {	value = "L";
	} else {			value = "M";	}

	createCookie("style", value);
	window.location.reload();
};

(function () {
 	var v = fontSize.value();
	document.write('<link href="../../../css/font' + v + '.css" rel="stylesheet" type="text/css" media="all" />');
})();

function fontsize_change() {

	var c = fontSize.value();	
	var s = '<dl>';
	var crr = '';

	s += '<dt>文字サイズ変更</dt>'
	if(c == "S") {
		crr = ' class="current"';
	}
	s += '<dd class="small"><a href="javascript:void(0)" onclick="fontSize.setStyle(\'S\'); return false;" '+ crr +'>小</a></dd>';

	crr = '';
	if(c == "M") {
		crr = ' class="current"';
	}
	s += '<dd class="medium"><a href="javascript:void(0)" onclick="fontSize.setStyle(\'M\'); return false;" '+ crr +'>中</a></dd>';

	crr = '';
	if(c == "L") {
		crr = ' class="current"';
	}
	s += '<dd class="large"><a href="javascript:void(0)" onclick="fontSize.setStyle(\'L\'); return false;" '+ crr +'>大</a></dd>';	

	s += '</dl>';
	document.write(s);
};