function getQuery() {        var search = window.location.search;        var query = {};        if (search) {            var str = search.substr(1);            if (str.indexOf('&') >= 0) {                var parts = str.split('&');                for (var i = 0; i < parts.length; i++) {                    var pair = parts[i].split('=');                    query[pair[0]] = pair[1];                }            } else {                var pair = str.split('=');                query[pair[0]]= pair[1];            }                return query;            } else {                return null;            }   }

key = getQuery().postid ;from= getQuery().update;alert("postid : " + postid + ',update: ' + fromupdate' );