function tellAFriend () {
 var href=document.location.href;
 if (href.indexOf('/g?')>-1) {
    baseRef = href.substr(href.indexOf('/g?')+3);
 } else {
   baseRef =
document.location.href.substring(document.location.href.lastIndexOf("/") +
1,location.href.length);
    baseRef = baseRef.substring(0,baseRef.lastIndexOf("."));
}
 var URL = "tellafriend.html?item=" + baseRef;

MM_openBrWindow(URL,'tellAFriend','scrollbars=no,resizable=yes,width=550,height=520,left=200,top=50');
}