window.onload = setfont;

function setfont(){ document.body.style.fontSize=loadCookie('fsize');}
function chg(ritu){
saveCookie('fsize',ritu+'%',10);
document.body.style.fontSize=ritu+'%';
}
function saveCookie( vn, v, dy ){
if(navigator.cookieEnabled)
document.cookie = vn+ '='+ v+ ';expires='+ new Date((new
Date()).getTime()+dy*24*3600000).toGMTString();
}
function loadCookie(vn){
var rt='';
if( vn && document.cookie ) {
var v = document.cookie.split(';');
for(i in v){ v[i].match(/^\s*(.*)=(.*)$/); if( RegExp.$1 == vn) { rt =
RegExp.$2; break; } }
} return rt;
}