var selectedString = "";

function getSelectedHTML() {
  selectedString = "";
  var rng = undefined;
  if (window.getSelection) {
    selobj = window.getSelection();
    if (!selobj.isCollapsed) {
      if (selobj.getRangeAt) {
        rng = selobj.getRangeAt(0);
      }
      else {
        rng = document.createRange();
        rng.setStart(selobj.anchorNode, selobj.anchorOffset);
        rng.setEnd(selobj.focusNode, selobj.focusOffset);
      }
      if (rng) {
        DOM = rng.cloneContents();
        object = document.createElement('div');
        object.appendChild(DOM.cloneNode(true));
        selectedString = object.innerHTML;
      }
      else {
        selectedString = selobj;
      }
    }
  }
  else if (document.selection) {
    selobj = document.selection;
    rng = selobj.createRange();
    if (rng && rng.htmlText) {
      selectedString = rng.htmlText;
    }
    else if (rng && rng.text) {
      selectedString = rng.text;
    }
  }
  else if (document.getSelection) {
    selectedString = document.getSelection();
  }
  selectedString = cleanSelectedString(selectedString);
}

function copySelection() {
  setTimeout("getSelectedHTML()", 50);
}

document.onmouseup = copySelection;
document.onkeyup = copySelection;

function cleanSelectedString(theString) {
  var comments = theString.match(/<!--/gi);
  var temp = "";
  if (comments != undefined) {
    for (i = 0; i < comments.length; i++) {
      var temp = theString.substring(theString.search(/<!--/gi), theString.search(/-->/gi) + 3);
      theString = theString.replace(temp, "");
    }
  }
  var regexp = /(<\/?[A-Z]+[0-9]?)\s?[^>]*>/gi
  theString = theString.replace(regexp, "$1>");
  var regexp2 = /<\/?[A-Z]+[0-9]?\s?>/gi
  theString = theString.replace(regexp2, function (m) { return returnTags(m); });
  var regexp_spaces = /\s+?\s*/gi
  theString = theString.replace(regexp_spaces, " ");
  var regexp_br = /(<br>)+?\s?(<br>\s*)*/gi
  theString = theString.replace(regexp_br, "<br>");
  return theString;
}

function returnTags(thematch) {
  var regtag = /<\/?(h[1-6]|a|area|ul|ol|dl|dd|dt|li|table|td|tr|th|p|hr|br)>/i
  if (regtag.test(thematch)) {
    return thematch;
  }
  else {
    return "";
  }
}