var imgNewsOn = new Image( 31, 12 );
    imgNewsOn.src = "/v1/grfx/news_on.gif";
var imgHistOn = new Image( 39, 12 );
    imgHistOn.src = "/v1/grfx/history_on.gif";
var imgInstOn = new Image( 56, 12 );
    imgInstOn.src = "/v1/grfx/instructors_on.gif";
var imgCurrOn = new Image( 62, 12 );
    imgCurrOn.src = "/v1/grfx/curr_on.gif";
var imgLocaOn = new Image( 47, 12 );
    imgLocaOn.src = "/v1/grfx/location_on.gif";
var imgGallOn = new Image( 40, 12 );
    imgGallOn.src = "/v1/grfx/gallery_on.gif";
var imgResoOn = new Image( 60, 12 );
    imgResoOn.src = "/v1/grfx/resources_on.gif";
var imgMembOn = new Image( 51, 12 );
    imgMembOn.src = "/v1/grfx/members_on.gif";


var imgNewsOff = new Image( 31, 12 );
    imgNewsOff.src = "/v1/grfx/news_off.gif";
var imgHistOff = new Image( 39, 12 );
    imgHistOff.src = "/v1/grfx/history_off.gif";
var imgInstOff = new Image( 56, 12 );
    imgInstOff.src = "/v1/grfx/instructors_off.gif";
var imgCurrOff = new Image( 62, 12 );
    imgCurrOff.src = "/v1/grfx/curr_off.gif";
var imgLocaOff = new Image( 47, 12 );
    imgLocaOff.src = "/v1/grfx/location_off.gif";
var imgGallOff = new Image( 40, 12 );
    imgGallOff.src = "/v1/grfx/gallery_off.gif";
var imgResoOff = new Image( 60, 12 );
    imgResoOff.src = "/v1/grfx/resources_off.gif";
var imgMembOff = new Image( 51, 12 );
    imgMembOff.src = "/v1/grfx/members_off.gif";

var aImg = new Array();
aImg["news"] = [imgNewsOn, imgNewsOff, false];
aImg["hist"] = [imgHistOn, imgHistOff, false];
aImg["inst"] = [imgInstOn, imgInstOff, false];
aImg["curr"] = [imgCurrOn, imgCurrOff, false];
aImg["loca"] = [imgLocaOn, imgLocaOff, false];
aImg["gall"] = [imgGallOn, imgGallOff, false];
aImg["reso"] = [imgResoOn, imgResoOff, false];
aImg["memb"] = [imgMembOn, imgMembOff, false];

function flipOn( name, me )
{
    if( aImg[name] && false == aImg[name][2] )
    {
        me.src = aImg[name][0].src;
        aImg[name][2] = true;
    }
}

function flipOff( name, me )
{
    if( aImg[name] && true == aImg[name][2] )
    {
        me.src = aImg[name][1].src;
        aImg[name][2] = false;
    }
}

function setOpts( w, h, r, l, t )
{
    var op = "";
    var lm = "location=no,menubar=no"
    var sr = ",resizable=no,scrollbars=no";
    var st = ",status=no,titlebar=no,toolbar=no";

    if( h && "undefined" != h )
    {
        op += "height="+ h;
    }

    if( "" != op )
    {
        op += ",";
    }

    if( l && "undefined" != l )
    {
        op += ",left="+ l;
    }

    op += lm;

    if( r && "undefined" != r )
    {
        op += ",resizable="+ r +",scrollbars=yes";
    }
    else
    {
        op += sr;
    }

    op += st;

    if( t && "undefined" != t )
    {
        op += ",top="+ t;
    }

    if( w && "undefined" != w )
    {
        op += ",width="+  w;
    }

    return op;
}

function openImg( u, t, w, h, r )
{
    var op = setOpts( w, h, r );

    op += ",left="+ (screen.availWidth - w)  / 2 + 
          ",top="+  (screen.availHeight - h) / 2;

    u = "/v1/showImg.php?w="+ w +"&h="+ h +"&img=" + escape( u ) + "&title="+ escape( t );

    var w = window.open( u, "_new", op );
}


function gOpen( url, w, h, r )
{
    var op = setOpts( w, h, r );

    op += ",left="+ (screen.availWidth - w)  / 2 + 
          ",top="+  (screen.availHeight - h) / 2;


    var w = window.open( url, "_gallery", op );
}