function init(h) {
  var ch = xHeight('cc');
  if (ch < h) {
    xHeight('content', h);
    xHeight('cc', h);
  }
  if (!document.getElementsByTagName) return;
  var anchors = document.getElementsByTagName("a");
  for (var i=0;  i < anchors.length;  i++) {
    var anchor = anchors[i];
    if (anchor.getAttribute("href") && anchor.getAttribute("rel") == "ext") 
      anchor.target = "_blank";
  }
}