var $result = $("#result");

​

function log() {

  var args = Array.prototype.slice.call( arguments, 0 ),

      i = 0,

      len = args.length;

  for ( ; i < len; i++ ) {

    $result.append("<span>" + (args[i] + "").replace( /\n/g, "<br>" ) + "</span> ");

  }

  $result.append("<br>");

}

​

var $win = $(window),

    $doc = $(document);

​

log( "window width: ", $win.width() );

log( "window height: ", $win.height() );

log( "document width: ", $doc.width() );

log( "document height: ", $doc.height() );