if url contains a target, the anchor in the site will be highlighted
当前为
// Some URIs refer to a location within a document.
// This kind of URI ends with "#" followed by an anchor identifier (called the fragment identifier).
// This script will highligt the anchor in the document.
//
// For general info and as an example for using this script - see...
// http://www.w3.org/TR/html401/intro/intro.html#fragment-uri
