function fNewPDFWindows ()
{
   if (!document.getElementsByTagName) return false;
    var links = document.getElementsByTagName("a");
    for (var eleLink=0; eleLink < links.length; eleLink ++) {
     if (links[eleLink].href.indexOf('.pdf') !== -1) {
        links[eleLink].onclick =
        function() {  
          window.open(this.href,'resizable,scrollbars');
          return false;
        }
      }
    }
} 

function addLoadEvent(func)
{
var oldonload = window.onload;

if (typeof window.onload != 'function')
{
  window.onload = func;
} else {
   window.onload = function()
        {
          oldonload();
          func();
        }
  }
}
addLoadEvent(fNewPDFWindows);