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

function incLogin() {
    var str = '<iframe id="iflogin" src="/cafe.cfm?act=member.showlogin&spanid=loginform" frameborder="0" width="0" height="0"></iframe>';
        str += '<span id="loginform">&nbsp;</span>';
    document.write(str);
}