function extractBlockquoteCitations() { 
 var quotes = document.getElementsByTagName('blockquote'); 
 for (var i = 0; i < quotes.length; i++) { 
   var cite = quotes[i].getAttribute('cite'); 
   var title = quotes[i].getAttribute('title');
   if (cite != '' && title != '') { 
     var a = document.createElement('a'); 
     a.setAttribute('href', cite); 
     a.setAttribute('title', title);
     a.setAttribute('class', 'citeurl');
     a.setAttribute('className', 'citeurl'); /* IEでのclass名指定 */
     a.appendChild(document.createTextNode(title)); 
     var p = document.createElement('p'); 
     p.className = 'blockquotesource'; 
     p.appendChild(a); 
     quotes[i].appendChild(p); 
   } 
 } 
} 
function addEvent(obj, evType, fn){ 
 if (obj.addEventListener){ 
   obj.addEventListener(evType, fn, true); 
   return true; 
 } else if (obj.attachEvent){ 
   var r = obj.attachEvent("on"+evType, fn); 
   return r; 
 } else { 
   return false; 
 } 
} 
addEvent(window, 'load', extractBlockquoteCitations);