Javascript obtain the address bar (URL) parameter information

1. Get all of the parameter information

function (url) {// retrieves all parameters from a given address or a default address bar

was whose = {},

hash;

var hashes = null;

if (!url)

url = window.location.search;

hashes = url.slice(url.indexOf('?') + 1).split('&');

for (var i = 0; i < hashes.length; i++) {

hash = hashes[i].split('=');

if (!!hash && hash[0].length > 0)

vars [hash [0]] = hash [1];

}

Return whose;

}

2. Obtain information specified parameters

function (name) {// Get the specified value of the parameter from the browser address bar

name = name.replace(/[\[]/, '\\[').replace(/[\]]/, '\\]');

var regex = new RegExp('[\\?&]' + name + '=([^&#]*)');

var results = regex.exec(window.location.search);

return results === null ? '' : results[1].replace(/\+/g, ' ');

}