function magEvt() {
  var c, e, nn = '{$string:namespace}svg', s, n;
  e = document.querySelectorAll(nn);
  for(c = 0; c < e.length; ++c) {
    for(s = 0; s < e[c].childNodes.length; ++s) {
      n = e[c].childNodes[s];
      if(n.classList && n.classList.contains('svggraph-magnifier')) {
        e[c].addEventListener('mousemove', magnifier, false);
        e[c].addEventListener('mouseleave', closeMagnifier, false);
      }
    }
  }
}