Ever wanted to extract parameter data from a querystring using JavaScript? Well here is a little script to do just that, using only JavaScript.
//QueryString extractor
function getParameterByName(name) {
name = name.replace(/[\[]/, "\\[").replace(/[\]]/, "\\]");
var regex = new RegExp("[\\?&]" + name + "=([^&#]*)"),
results = regex.exec(location.search);< br /> return results === null ? "" : decodeURIComponent(results[1].replace(/\+/g, " "));
}
//Usage
var value1 = getParameterByName("para1");