Parse a url and return its components, php parse_url() for javascript

parse_url.js

/**
 * Parse a url and return its components
 * 
 * @param   string $url
 * @return  Object
 * 
 * @author  Mohammed Al Ashaal <is.gd/alash3al>, inspired by PHP
 * @version 1.0.0
 */
function parse_url($url)
{
    $dom        =   document.createElement('a');
    $dom.href   =   $url;
    $obj        =
    {
        scheme  :   $dom.protocol.substr(0, $dom.protocol.indexOf(':')),
        host    :   $dom.hostname,
        port    :   $dom.port,
        path    :   $dom.pathname,
        query   :   $dom.search.substr($dom.search.indexOf('?') + 1),
        hash    :   $dom.hash.substr($dom.hash.indexOf('#'))
    }
    return $obj;
}