Mit dieser kleinen Funktion lassen sich in JavaScript URL-Parameter / Query-Strings abfragen:
// URL-Parameter abfragen function getUrlParameterByName(name, url) { if (!url) url = window.location.href; name = name.replace(/[[]]/g, "\"); var regex = new RegExp("[?&]" + name + "(=([^&#]*)|&|#|$)"), results = regex.exec(url); if (!results) return null; if (!results[2]) return ''; return decodeURIComponent(results[2].replace(/+/g, " ")); } alert(getUrlParameterByName('mein-url-parameter'));