if(window.opera) { Opera = 1;} else { Opera = 0; }
if(document.all && !Opera) { MSIE = 1; } else { MSIE = 0; }

function init() {
  spanElems = document.getElementsByTagName("span");
  for (i=0; i<spanElems.length ; i++) {
    if (spanElems[i].className == "email"){
      if (MSIE) {
        spanElems[i].onclick="unmaskEmail()";}
      else {
    spanElems[i].addEventListener("click", unmaskEmail, false);}
    }
    if (spanElems[i].className == "explain"){
       spanElems[i].addEventListener("mouseover", explain, false);
       spanElems[i].addEventListener("mouseout", clean, false);
    } 
  }
}

var _unmasked = false;
function unmaskEmail() {
  if (!_unmasked) {
    spanElems = document.getElementsByTagName("span");
    i = 0 ;
    while ( i < spanElems.length) {
      spanElem = spanElems[i];
      if (spanElem.className == "email"){
         recipientName = spanElem.firstChild;
         recipientHost = spanElem.lastChild;
         emailAddress = recipientName.nodeValue +"@"+ recipientHost.nodeValue;
        
         // create the email a element
         emailLinkElem = document.createElement("a");
         emailLinkElem.appendChild( document.createTextNode( emailAddress));
         linkAttr = document.createAttribute("href");
         linkAttr.nodeValue = "mailto:" + emailAddress;
         emailLinkElem.setAttributeNode( linkAttr);
        
         // replace the span element with the a element
         spanElem.parentNode.replaceChild( emailLinkElem, spanElem);
         }
      else {i++;}
//       emailLinkElem.dispatchEvent( click);
    }
   _unmasked = true;
  }
}

  window.onload=init;