dom_document_write.js

/*@cc_on @*/
/* if IE, do nothing (error 8004004, whatever that is) */
/*@if (@_jscript_version > 0)
@else @*/
document.getCurrentScript = function(){
  // fails when document.write nests like
  // document.write('<'+'script'+'>' +'document.write(...)' + '</'+'script'+'>')
  return (function (e) {
    if (!e) return null // gracefully report failure
    if (e.nodeName.toLowerCase() == 'script') return e;
      return arguments.callee(e.lastChild)
    })(document)
};

document.__write__ = document.write;

document.write = function (what, where) {
  if (!where) where = this.getCurrentScript();
  if (!where) return this.__write__(what);
  var here = where.previousSibling;
  if (!here || here.nodeType != 1 || here.className != '.written'){
    here = document.createElement('div');
    here.className =  '.written';
    where.parentNode.insertBefore(here, where);
  }
  if (what.nodeType){
    here.appendChild(what);
  }else{
    if (what.match(/^<script/i)){
      // needed to have your browser reevaluate the script
      this.__write__(what); 
    }
    else{
      var tmp = here.innerHTML;
      try{
        here.innerHTML += what;
      }catch(e){
        here.innerHTML = tmp;
        if (here.namespaceURI == 'http://www.w3.org/1999/xhtml'){
          do{
            what = what.replace('&nbsp;', ' ');
          }while(what.indexOf('&nbsp;')>=0)
          here.innerHTML += what;
        }
        else {
          alert(e);
        }
      }
    }
  }
};
/*@end @*/

gistfile1.txt

2ndtest