function fsize(input) {
document.body.style.fontSize = input + "em";
setCookie("font_size", input);
}

function setCookie(font_size, value, domain) {
	var expire;
	var	today = new Date();
	var	expiredate = new Date();
		expire = expiredate.setTime(today.getTime() + 1000*60*60*24*365);
		expire = expiredate.toGMTString();
    document.cookie= font_size + "=" + escape(value) + "; expires=" + expire +
        "; path=/" + ((domain) ? "; domain=" + domain : "");
}

function getCookie(font_size) {
    var dc = document.cookie;
    var prefix = font_size + "=";
    var begin = dc.indexOf("; " + prefix);
    if (begin == -1) {
        begin = dc.indexOf(prefix);
        if (begin != 0) return null;
    }
    else {begin += 2;}
    var end = document.cookie.indexOf(";", begin);
    if (end == -1) {end = dc.length;}
    return unescape(dc.substring(begin + prefix.length, end));
}
  
function firstsize() {
	var fs = getCookie("font_size");
	if (fs == null || fs == ""){fsize(0.9)	}
	 else {fsize(fs)}
}
window.onload = firstsize;