function modBlock(){
  var content = document.getElementById('content');
  var blockquote = document.getElementsByTagName('blockquote');
  for (var i = 0; i < blockquote.length; i++){
    var b = blockquote[i];
	b.className = ((i % 2) ? 'b2' : 'b1');
	}
}
function new_win(adr, name, w, h)
{
  window.open (adr, name, "width=" + w + ", height=" + h);
}