js_src=document.getElementById('moji').src;
slashe_pos=js_src.lastIndexOf('/');
css_path=js_src.substr(0,slashe_pos + 1);

var ck=getCookie('ITAcharacterSize');
changeCharacterSize(ck);

function setMojiCookie(d) {
	for(i=0;i!=10;i++) {
		var expire="Wed, 01 Jan 2000 23:59:59 GMT";
		document.cookie="ITAcharacterSize=" + d + "; path=/; expires=" + expire + ";";
	}
	var expire="Wed, 01 Jan 2020 23:59:59 GMT";
	document.cookie="ITAcharacterSize=" + d + "; path=/; expires=" + expire + ";";
	
}

function changeCharacterSize(css) {
	document.getElementById('css_default').href = css_path + css;
	setMojiCookie(css);
}

function getCookie(key) {
     var sCookie = document.cookie;
     var aData = sCookie.split(";");
     var oExp = new RegExp(" ", "g");
     key = key.replace(oExp, "");

     var i = 0;
     while (aData[i]) {
          var aWord = aData[i].split("=");
          aWord[0] = aWord[0].replace(oExp, "");
          if (key == aWord[0]) return unescape(aWord[1]);
          if (++i >= aData.length) break;
     }
     return "mid.css";
}