/* -------------------------------------------------------------------------- */
/**
 *    history.back
 */
/* -------------------------------------------------------------------------- */
//sample:
//<a href="/go/to/default/" onclick="return history_back(this);">Go Back</a>
function fr_history_back(elm){
    fr_history_back_flg = false;
    fr_history_back_href = elm.href;
    jQuery(window).unload(function(){
        fr_history_back_flg=true;
    });
    history.back();
    setTimeout(function(){if(!fr_history_back_flg) location.href=fr_history_back_href},500);
    return false;
}