// parameters for Set_Cookie: name, value, expires, path, domain, secure
function Set_Cookie( name, value, expires, path, domain, secure ) {
    // set time in milliseconds
    var today = new Date();
    today.setTime( today.getTime() );

    /*
    if the expires variable is set, make the correct 
    expires time, the current script below will set 
    it for x number of days, to make it for hours, 
    delete * 24, for minutes, delete * 60 * 24
    */
    if ( expires ){
        expires = expires * 1000 * 60 * 60 * 24;
    }
    var expires_date = new Date( today.getTime() + (expires) );

    document.cookie = name + "=" +escape( value ) +
    ( ( expires ) ? ";expires=" + expires_date.toGMTString() : "" ) + 
    ( ( path ) ? ";path=" + path : "" ) + 
    ( ( domain ) ? ";domain=" + domain : "" ) +
    ( ( secure ) ? ";secure" : "" );
}


// parameters for Delete_Cookie: name, path, domain
function Delete_Cookie( name, path, domain ) {
    if ( Get_Cookie( name ) ) document.cookie = name + "=" +
    ( ( path ) ? ";path=" + path : "") +
    ( ( domain ) ? ";domain=" + domain : "" ) +
    ";expires=Thu, 01-Jan-1970 00:00:01 GMT";
}
	

// get cookie by name, if it exists, otherwise returns null
function Get_Cookie( name ) {
    var start = document.cookie.indexOf( name + "=" );
    var len = start + name.length + 1;
    if ( ( !start ) &&
    ( name != document.cookie.substring( 0, name.length ) ) )
    {
    return null;
    }
    if ( start == -1 ) return null;
    var end = document.cookie.indexOf( ";", len );
    if ( end == -1 ) end = document.cookie.length;
    return unescape( document.cookie.substring( len, end ) );
}

//Test for cookie support, update div id=login-error with message	
function checkCookies() {
    Set_Cookie( 'testcookie', 'none', '', '/', '', '' );
    // if Get_Cookie succeeds, cookies are enabled
    if ( Get_Cookie( 'testcookie' ) ) {
	    Delete_Cookie('testcookie', '/', '');
    }
    else {
        var msg_div = document.getElementById('login-error-msg');
        var msg = '';
        if (msg_div) {
            msg = msg_div.innerHTML;  //grab any current error
        }
	    document.getElementById('login-error').innerHTML = '<div class="sec-login-error-large">' + msg + '<p>Cookies are disabled! Please enable cookies in your browser.</p></div>';
    }
    // Reset hidden form var to test javascript while we're at it
    document.forms.loginform.javascript_enabled.value ="true";
}		


// Stuff for NTLM login on PHIN
function hide_login_form () {
    $('visitor-login-form').hide();
}
function show_login_form () {
    $('ntlm-login-buttons').hide();
    $('visitor-login-form').show();
    document.loginform.credential_0.focus();
}