//shortcut
var dmCookie = document.cookie;
//cookie vars
var today = new Date()
var expires = new Date();
var numDays = 30;
expires.setTime(today.getTime() + 1000*60*60*24*numDays);
	  
function getCookie(name) { // use: getCookie("name");
    var index = dmCookie.indexOf(name + "=");
    if (index == -1) return null;
    index = dmCookie.indexOf("=", index) + 1; // first character
    var endstr = dmCookie.indexOf(";", index);
    if (endstr == -1) endstr = dmCookie.length; // last character
    return unescape(dmCookie.substring(index, endstr));
}



function setCookie(name, value, expire) {
      document.cookie = name + "=" + escape(value)
      + ((expire == null) ? "" : ("; expires=" + expire.toGMTString()))
}