dom = (document.getElementById)? true : false;
isOpera = (window.opera)? true : false;
isOpera7 = (isOpera && document.readyState)? true : false;

function  showLogin(islogin) {
	if( isOpera &&  !isOpera7 ) {
		return true;
	} else if (dom) {
		if(document.getElementById('login-form')) document.getElementById('login-form').style.display = "block";
                //document.getElementById('login-form-shadow').style.display = 'block';
                if(islogin){
		    document.forms['login'].passwd.focus();
                }
                else{
		    document.forms['login'].login.focus();
                }
		return false;
	}
	return true;
}

function hideLogin() {
	if(document.getElementById('login-form')) document.getElementById('login-form').style.display = "none";
        if(document.getElementById('login-form-shadow')) document.getElementById('login-form-shadow').style.display = 'none';
	return false;
}