get query string values in JavaScript From http://stackoverflow.com/questions/901115/how-can-i-get-query-string-values-in-javascript
function getParameterByName(name) { name = name.replace(/[\[]/, "\\[").replace(/[\]]/, "\\]"); var regex = new RegExp("[\\?&]" + name + "=([^&#]*)"), results = regex.exec(location.search); return results === null ? "" : decodeURIComponent(results[1].replace(/\+/g, " ")); }
var prodId = getParameterByName('prodId');