function getUrlVars(param=null) { if(param !== null) { var vars = [], hash; var hashes = window.location.href.slice(window.location.href.indexOf('?') + 1).split('&'); for(var i = 0; i < hashes.length; i++) { hash = hashes[i].split('='); vars.push(hash[0]); vars[hash[0]] = hash[1]; } return vars[param]; } else { return null; } } /* * * URL :: http://example-domain.com?firstname=kang&lastname=cahya * * USAGE :: getUrlVars('firstname') * RESULT :: kang * * USAGE :: getUrlVars('lastname') * RESULT :: cahya * */