function externalLinks() {
  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") == "external")
    anchor.target = "_blank";
  }
}
if(document.getElementById) {
  window.onload=function() {
    externalLinks();
  }
}

function videoplay(video) {
    objstring = '<object width="240" height="200"><param name="movie" value="http://www.youtube.com/v/' + video + '&amp;hl=de&amp;fs=1&autoplay=1" /><param name="allowFullScreen" value="true" /><param name="allowscriptaccess" value="always" /><embed src="http://www.youtube.com/v/' + video + '&amp;hl=de&amp;fs=1&autoplay=1" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="240" height="200"></embed></object>';
    document.getElementById('object_' + video).innerHTML = objstring;
}