MVGP permalink back to Munzee Map

var munzMapButton = document.createElement( 'img' );
munzMapButton.id = 'gotoMapBtn';
munzMapButton.class = 'btn';
munzMapButton.title = 'View location on Munzee Map and copy to clipboard.';
munzMapButton.src = 'https://yt3.ggpht.com/-uzybXB9pgSg/AAAAAAAAAAI/AAAAAAAAAAA/JGU1V_Fn4Tg/s68-c-k-no-mo-rj-c0xffffff/photo.jpg';
munzMapButton.style = 'width: 48px; height: 48px; border: 1px solid #000000; margin: 2px; cursor: pointer;';

var munzMapNavigate = document.createElement( 'a' );
munzMapNavigate.id = 'gotoMap';
munzMapNavigate.appendChild( munzMapButton );

document.getElementById( 'toolbox' ).prepend( munzMapNavigate );

var loadGeoHash = document.createElement( 'script' );
loadGeoHash.src = 'https://www.munzee.com/javascript/map/geohash.js';
loadGeoHash.type = 'text/javascript';
document.getElementsByTagName( 'head' )[ 0 ].appendChild( loadGeoHash );

var rawScript = document.createElement( 'script' );
rawScript.type = 'text/javascript';
rawScript.innerText = 'document.getElementById( "gotoMap" ).addEventListener( "mouseover", function(){' +
    'var strMapZoom = parseFloat( map._zoom - 1 );' +
    'if ( strMapZoom === parseInt( strMapZoom ) ) { strMapZoom = strMapZoom.toFixed( 1 ); }' +
    'var strMunzMap = "https://www.munzee.com/map/" + geohash.encode( map.getCenter().lat, map.getCenter().lng, 9 ) + "/" + strMapZoom;' +
    'document.getElementById( "gotoMap" ).href = strMunzMap;' +
//        'console.log("Set href to: %o",document.getElementById( "gotoMap" ).href)' +
    ';} );' +
    'document.getElementById( "gotoMapBtn" ).addEventListener( "click", function( e ){' +
    'var strMapZoom = parseFloat( map._zoom - 1 );' +
    'if ( strMapZoom === parseInt( strMapZoom ) ) { strMapZoom = strMapZoom.toFixed( 1 ); }' +
    'var strMunzMap = "https://www.munzee.com/map/" + geohash.encode( map.getCenter().lat, map.getCenter().lng, 9 ) + "/" + strMapZoom;' +
    'var el = document.createElement( "textarea" );' +
    'el.value = strMunzMap;' +
    'el.setAttribute( "readonly", "" );' +
    'el.style = { display: "none" };' +
    'document.body.appendChild( el );' +
    'el.select();' +
    'document.execCommand( "copy" );' +
    'document.body.removeChild( el );' +
//        'console.log("if ( %o )...: %o", e.ctrlKey,e);' +
    'if ( !e.ctrlKey ) {' +
    'e.preventDefault();' +
    'alert( "Permalink <" + strMunzMap + "> copied to your clipboard!\\n\\n(Please [CTRL]-[Click] if you want to open map in new tab.)" );' +
    '} else { alert( "Permalink copied to your clipboard!" ); }' +
    '} );';
document.getElementsByTagName( 'head' )[ 0 ].appendChild( rawScript );