function getSelectedHTML(){
      var rng=null,html="";

      if (document.selection && document.selection.createRange){
        rng=editdoc.selection.createRange();
        html=rng.htmlText||"";
      }else if (window.getSelection){
        rng=editwin.getSelection();

        if (rng.rangeCount > 0 && window.XMLSerializer){
          rng=rng.getRangeAt(0);
          html=new XMLSerializer().serializeToString(rng.cloneContents());
        }
      }
      return html;
    }