function $_GET(param) {
var vars = {};
window.location.href.replace( location.hash, '' ).replace(
/[?&]+([^=&]+)=?([^&]*)?/gi, // regexp
function( m, key, value ) { // callback
vars[key] = value !== undefined ? value : '';
}
);

if ( param ) {
return vars[param] ? vars[param] : null;
}
return vars;
}

var $_GET = $_GET(),
   name = $_GET['name'],
   age = $_GET['age'];