function WSG_ImageReplace(str,repl) {
  for(var i=0;i<(document.images.length);i++) {
    if ((s = document.images[i].src.indexOf(str))>=0 ) {
      x = document.images[i].src;
      document.images[i].src = x.substring(0,s) + repl + x.substring(s+str.length,x.length);
	document.images[i].name = "do_not_change_this";
    }
  }
}
function WSG_DisableLinkToSelf() {
  var hrf = window.location.href;
  for (var i = 0; i < document.links.length; i++) {
    if (document.links[i].href.indexOf(hrf) >= 0) {
      document.links[i].onmouseover = null;
      document.links[i].onmouseout = null;
    }
  }
}