Code:
/*
FontSizer v2.2
Javascript to dynamically change font sizes on a web page.
Coded by Phil Nash of www.unintentionallyblank.co.uk
Cookies script courtesy of http://www.quirksmode.org/js/cookies.html
Measuring the current font size courtesy of http://www.alistapart.com/articles/fontresizing
** Please don't remove this notice **
See http://www.unintentionallyblank.co.uk/2007/11/09/fontsizer-reloaded-changing-font-sizes-with-javascript/ for full details
*/
addDOMLoadEvent=(function(){var e=[],t,s,n,i,o,d=document,w=window,r='readyState',c='onreadystatechange',x=function(){n=1;clearInterval(t);while(i=e.shift())i();if(s)s[c]=''};return function(f){if(n)return f();if(!e[0]){d.addEventListener&&d.addEventListener("DOMContentLoaded",x,false);/*@cc_on@*//*@if(@_win32)d.write("<script id=__ie_onload defer src=//0><\/scr"+"ipt>");s=d.getElementById("__ie_onload");s[c]=function(){s[r]=="complete"&&x()};/*@end@*/if(/WebKit/i.test(navigator.userAgent))t=setInterval(function(){/loaded|complete/.test(d[r])&&x()},10);o=w.onload;w.onload=function(){x();o&&o()}}e.push(f)}})();
var s5_font_adjuster_cookie_name = window.location;
s5_font_adjuster_cookie_name = s5_font_adjuster_cookie_name.toString();
if (s5_font_adjuster_cookie_name.indexOf("index") > 0) {
var s5_font_adjuster_cookie_name_array = s5_font_adjuster_cookie_name.split("index");
s5_font_adjuster_cookie_name = s5_font_adjuster_cookie_name_array[0];
}
var fS={
iFS:null,
cFS:null,
init: function (fC) {
if (!document.getElementById || !document.createTextNode) { return; }
if (UBCookie.read(s5_font_adjuster_cookie_name)) {
var sizes = UBCookie.read(s5_font_adjuster_cookie_name).split(",");
fS.iFS = sizes[0]*1;
fS.cFS = sizes[1]*1;
fS.setBodySize();
} else {
var el = document.createElement('span');
el.innerHTML = " ";
el.style.position = "absolute";
el.style.left = "-9999px";
el.style.lineHeight = "1em";
document.body.insertBefore(el,document.body.firstChild);
fS.iFS = el.offsetHeight/16;
fS.cFS = fS.iFS;
UBCookie.create(s5_font_adjuster_cookie_name,fS.iFS+","+fS.cFS,30);
}
fS.addJSLink(fC,fS.decFS,".","decreaseSize");
fS.addJSLink(fC,fS.rFS,".","resetSize");
fS.addJSLink(fC,fS.incFS,".","increaseSize");
},
incFS: function () {
fS.cFS = fS.cFS*1.1;
fS.setBodySize();
return false;
},
decFS: function () {
fS.cFS = fS.cFS*0.9;
fS.setBodySize();
return false;
},
rFS: function () {
fS.cFS = fS.iFS;
fS.setBodySize();
return false;
},
setBodySize: function() {
document.body.style.fontSize = fS.cFS + 'em';
UBCookie.create(s5_font_adjuster_cookie_name,fS.iFS+","+fS.cFS,30);
},
addJSLink: function (elementId, onClickFunction, linkText, className) {
var element = document.getElementById(elementId);
var link = document.createElement("a");
link.className = className;
var linkText = document.createTextNode(linkText);
link.appendChild(linkText);
link.onclick = onClickFunction;
link.href="#"+elementId;
element.appendChild(link);
s5_font_adjuster.js:80TypeError: 'null' is not an object (evaluating 'element.appendChild')
}
}
var UBCookie={
create: function (name,value,days) {
if (days) {
var date = new Date();
date.setTime(date.getTime()+(days*24*60*60*1000));
var expires = "; expires="+date.toGMTString();
} else { var expires = ""; }
document.cookie = name+"="+value+expires+"; path=/";
},
read: function (name) {
var nameEQ = name + "=";
var ca = document.cookie.split(';');
for(var i=0;i < ca.length;i++) {
var c = ca[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;
},
erase: function(name) { createCookie(name,"",-1); }
}
addDOMLoadEvent(function() {fS.init("fontControls")});
