get/set cookies

function getCookie(a){var b,c,d,e=document.cookie.split(";");for(b=0;b<e.length;b++){c=e[b].substr(0,e[b].indexOf("="));d=e[b].substr(e[b].indexOf("=")+1);c=c.replace(/^\s+|\s+$/g,"");if(c==a){return unescape(d)}}}
function setCookie(a,b,c){var d=new Date;d.setDate(d.getDate()+c);var e=escape(b)+(c==null?"":"; expires="+d.toUTCString());document.cookie=a+"="+e}