bookmarklet – Find lat,lon on the new Google Maps (Street View)

javascript:
var str=document.URL;
var uno=str.indexOf("!2d");
var dos=str.indexOf("!3d");
var tre=str.indexOf("!2m");
var lon=str.substring(uno+3, dos);
var lat=str.substring(dos+3, tre);
var datos=lat+","+lon;
window.prompt ("Copy to clipboard: Ctrl+C, Enter", datos);