DCC Bibtex Bookmarklet source.

gistfile1.js

(function(){
  var basicdiv = document.getElementById('BasicDocInfo');
  var dccnum = basicdiv.childNodes[1].childNodes[2].childNodes[0].innerHTML.split('-')[1];
  var numauthors = document.getElementById('Authors').childNodes[1].childNodes.length;
  var authors = new Array();
  for(var j=0;j<numauthors;j++){
    authors[j] = document.getElementById('Authors').childNodes[1].childNodes[j].childNodes[0].innerHTML;
  };
  var title = document.getElementById('DocTitle').childNodes[1].innerHTML;
  var dateels = basicdiv.childNodes[1].childNodes[17].innerHTML.split('%20');
  var day = dateels[0];
  var month = dateels[1];
  var year = dateels[2].substring(0,4);
  var ind = "%20%20%20%20";
  bibstring = "@techreport{" + dccnum + ",\n";
  bibstring += ind + "author={" + authors.join("%20and%20") + "},\n";
  bibstring += ind + "institution={LIGO Laboratory},\n";
  bibstring += ind + "title={{" + title + "}},\n";
  bibstring += ind + "number={" + dccnum + "},\n";
  bibstring += ind + "day={" + day + "},\n";
  bibstring += ind + "month={" + month + "},\n";
  bibstring += ind + "year={" + year + "},\n";
  bibstring += ind + "url={" + document.baseURI + "}\n";
  bibstring += "}";
  /*var popup = window.open("", "Bibtex output", "width=320,height=210,scrollbars=yes");
  popup.document.writeln(bibstring);*/
  alert(bibstring);
})()

J. Rollins told me about DCC xml metadata export: &outformat=xml

Would be less hackey.