// Functions for rollover images

function img_act(imgName) {
    if (document.images) {
        imgOn = eval(imgName + "on.src");
        document [imgName].src = imgOn;
    }
}

function img_inact(imgName) {
    if (document.images) {
        imgOff = eval(imgName + "off.src");
        document [imgName].src = imgOff;
    }
}

// Colour-specific files

var news = new Array('blue', 'yellow', 'green', 'orange', 'beige', 'brown');
var events = new Array('blue', 'yellow', 'green', 'orange', 'beige', 'brown');
var jobs = new Array('blue', 'yellow', 'green', 'orange', 'beige', 'brown');
var whyjoin = new Array('blue', 'yellow', 'green', 'orange', 'beige', 'brown');
var membersonly = new Array('blue', 'yellow', 'green', 'orange', 'beige', 'brown');
var aboutus = new Array('blue', 'yellow', 'green', 'orange', 'beige', 'brown');
var contactus = new Array('blue', 'yellow', 'green', 'orange', 'beige', 'brown');

news['blue'] = new Array('on', 'off');
events['blue'] = new Array('on', 'off');
jobs['blue'] = new Array('on', 'off');
whyjoin['blue'] = new Array('on', 'off');
membersonly['blue'] = new Array('on', 'off');
aboutus['blue'] = new Array('on', 'off');
contactus['blue'] = new Array('on', 'off');

news['yellow'] = new Array('on', 'off');
events['yellow'] = new Array('on', 'off');
jobs['yellow'] = new Array('on', 'off');
whyjoin['yellow'] = new Array('on', 'off');
membersonly['yellow'] = new Array('on', 'off');
aboutus['yellow'] = new Array('on', 'off');
contactus['yellow'] = new Array('on', 'off');

news['green'] = new Array('on', 'off');
events['green'] = new Array('on', 'off');
jobs['green'] = new Array('on', 'off');
whyjoin['green'] = new Array('on', 'off');
membersonly['green'] = new Array('on', 'off');
aboutus['green'] = new Array('on', 'off');
contactus['green'] = new Array('on', 'off');

news['orange'] = new Array('on', 'off');
events['orange'] = new Array('on', 'off');
jobs['orange'] = new Array('on', 'off');
whyjoin['orange'] = new Array('on', 'off');
membersonly['orange'] = new Array('on', 'off');
aboutus['orange'] = new Array('on', 'off');
contactus['orange'] = new Array('on', 'off');

news['beige'] = new Array('on', 'off');
events['beige'] = new Array('on', 'off');
jobs['beige'] = new Array('on', 'off');
whyjoin['beige'] = new Array('on', 'off');
membersonly['beige'] = new Array('on', 'off');
aboutus['beige'] = new Array('on', 'off');
contactus['beige'] = new Array('on', 'off');

news['brown'] = new Array('on', 'off');
events['brown'] = new Array('on', 'off');
jobs['brown'] = new Array('on', 'off');
whyjoin['brown'] = new Array('on', 'off');
membersonly['brown'] = new Array('on', 'off');
aboutus['brown'] = new Array('on', 'off');
contactus['brown'] = new Array('on', 'off');

news.blue.on = "images/nav_blue_news_on.gif";
events.blue.on = "images/nav_blue_events_on.gif";
jobs.blue.on = "images/nav_blue_jobs_on.gif";
whyjoin.blue.on = "images/nav_blue_whyjoin_on.gif";
membersonly.blue.on = "images/nav_blue_membersonly_on.gif";
aboutus.blue.on = "images/nav_blue_aboutus_on.gif";
contactus.blue.on = "images/nav_blue_contactus_on.gif";

news.blue.off = "images/nav_blue_news_off.gif";
events.blue.off = "images/nav_blue_events_off.gif";
jobs.blue.off = "images/nav_blue_jobs_off.gif";
whyjoin.blue.off = "images/nav_blue_whyjoin_off.gif";
membersonly.blue.off = "images/nav_blue_membersonly_off.gif";
aboutus.blue.off = "images/nav_blue_aboutus_off.gif";
contactus.blue.off = "images/nav_blue_contactus_off.gif";

news.yellow.on = "images/nav_yellow_news_on.gif";
events.yellow.on = "images/nav_yellow_events_on.gif";
jobs.yellow.on = "images/nav_yellow_jobs_on.gif";
whyjoin.yellow.on = "images/nav_yellow_whyjoin_on.gif";
membersonly.yellow.on = "images/nav_yellow_membersonly_on.gif";
aboutus.yellow.on = "images/nav_yellow_aboutus_on.gif";
contactus.yellow.on = "images/nav_yellow_contactus_on.gif";

news.yellow.off = "images/nav_yellow_news_off.gif";
events.yellow.off = "images/nav_yellow_events_off.gif";
jobs.yellow.off = "images/nav_yellow_jobs_off.gif";
whyjoin.yellow.off = "images/nav_yellow_whyjoin_off.gif";
membersonly.yellow.off = "images/nav_yellow_membersonly_off.gif";
aboutus.yellow.off = "images/nav_yellow_aboutus_off.gif";
contactus.yellow.off = "images/nav_yellow_contactus_off.gif";

news.green.on = "images/nav_green_news_on.gif";
events.green.on = "images/nav_green_events_on.gif";
jobs.green.on = "images/nav_green_jobs_on.gif";
whyjoin.green.on = "images/nav_green_whyjoin_on.gif";
membersonly.green.on = "images/nav_green_membersonly_on.gif";
aboutus.green.on = "images/nav_green_aboutus_on.gif";
contactus.green.on = "images/nav_green_contactus_on.gif";

news.green.off = "images/nav_green_news_off.gif";
events.green.off = "images/nav_green_events_off.gif";
jobs.green.off = "images/nav_green_jobs_off.gif";
whyjoin.green.off = "images/nav_green_whyjoin_off.gif";
membersonly.green.off = "images/nav_green_membersonly_off.gif";
aboutus.green.off = "images/nav_green_aboutus_off.gif";
contactus.green.off = "images/nav_green_contactus_off.gif";

news.orange.on = "images/nav_orange_news_on.gif";
events.orange.on = "images/nav_orange_events_on.gif";
jobs.orange.on = "images/nav_orange_jobs_on.gif";
whyjoin.orange.on = "images/nav_orange_whyjoin_on.gif";
membersonly.orange.on = "images/nav_orange_membersonly_on.gif";
aboutus.orange.on = "images/nav_orange_aboutus_on.gif";
contactus.orange.on = "images/nav_orange_contactus_on.gif";

news.orange.off = "images/nav_orange_news_off.gif";
events.orange.off = "images/nav_orange_events_off.gif";
jobs.orange.off = "images/nav_orange_jobs_off.gif";
whyjoin.orange.off = "images/nav_orange_whyjoin_off.gif";
membersonly.orange.off = "images/nav_orange_membersonly_off.gif";
aboutus.orange.off = "images/nav_orange_aboutus_off.gif";
contactus.orange.off = "images/nav_orange_contactus_off.gif";

news.beige.on = "images/nav_beige_news_on.gif";
events.beige.on = "images/nav_beige_events_on.gif";
jobs.beige.on = "images/nav_beige_jobs_on.gif";
whyjoin.beige.on = "images/nav_beige_whyjoin_on.gif";
membersonly.beige.on = "images/nav_beige_membersonly_on.gif";
aboutus.beige.on = "images/nav_beige_aboutus_on.gif";
contactus.beige.on = "images/nav_beige_contactus_on.gif";

news.beige.off = "images/nav_beige_news_off.gif";
events.beige.off = "images/nav_beige_events_off.gif";
jobs.beige.off = "images/nav_beige_jobs_off.gif";
whyjoin.beige.off = "images/nav_beige_whyjoin_off.gif";
membersonly.beige.off = "images/nav_beige_membersonly_off.gif";
aboutus.beige.off = "images/nav_beige_aboutus_off.gif";
contactus.beige.off = "images/nav_beige_contactus_off.gif";

news.brown.on = "images/nav_brown_news_on.gif";
events.brown.on = "images/nav_brown_events_on.gif";
jobs.brown.on = "images/nav_brown_jobs_on.gif";
whyjoin.brown.on = "images/nav_brown_whyjoin_on.gif";
membersonly.brown.on = "images/nav_brown_membersonly_on.gif";
aboutus.brown.on = "images/nav_brown_aboutus_on.gif";
contactus.brown.on = "images/nav_brown_contactus_on.gif";

news.brown.off = "images/nav_brown_news_off.gif";
events.brown.off = "images/nav_brown_events_off.gif";
jobs.brown.off = "images/nav_brown_jobs_off.gif";
whyjoin.brown.off = "images/nav_brown_whyjoin_off.gif";
membersonly.brown.off = "images/nav_brown_membersonly_off.gif";
aboutus.brown.off = "images/nav_brown_aboutus_off.gif";
contactus.brown.off = "images/nav_brown_contactus_off.gif";

// Rollover images

if (document.images) {
            
    var navnewson = new Image();
    navnewson.src = news[activeColour]['on'];
    var naveventson = new Image();
    naveventson.src = events[activeColour]['on'];
    var navjobson = new Image();
    navjobson.src = jobs[activeColour]['on'];
    var navwhyjoinon = new Image();
    navwhyjoinon.src = whyjoin[activeColour]['on'];
    var navmembersonlyon = new Image();
    navmembersonlyon.src = membersonly[activeColour]['on'];
    var navaboutuson = new Image();
    navaboutuson.src = aboutus[activeColour]['on'];
    var navcontactuson = new Image();
    navcontactuson.src = contactus[activeColour]['on'];

    var navnewsoff = new Image();
    navnewsoff.src = news[activeColour]['off'];
    var naveventsoff = new Image();
    naveventsoff.src = events[activeColour]['off'];
    var navjobsoff = new Image();
    navjobsoff.src = jobs[activeColour]['off'];
    var navwhyjoinoff = new Image();
    navwhyjoinoff.src = whyjoin[activeColour]['off'];
    var navmembersonlyoff = new Image();
    navmembersonlyoff.src = membersonly[activeColour]['off'];
    var navaboutusoff = new Image();
    navaboutusoff.src = aboutus[activeColour]['off'];
    var navcontactusoff = new Image();
    navcontactusoff.src = contactus[activeColour]['off'];

}

// Display navigation buttons for active colour

function setActive(activeColour) {

    // Display the buttons

    document ['navnews'].src = navnewsoff.src;
    document ['navevents'].src = naveventsoff.src;
    document ['navjobs'].src = navjobsoff.src;
    document ['navwhyjoin'].src = navwhyjoinoff.src;
    document ['navmembersonly'].src = navmembersonlyoff.src;
    document ['navaboutus'].src = navaboutusoff.src;
    document ['navcontactus'].src = navcontactusoff.src;    

    // Highlight the active page's link

    if (document.images) {
        if (window.location.href.indexOf('index.php') > 0) {
            navnewsoff.src = news[activeColour]['on'];
            document ['navnews'].src = navnewsoff.src;
        }
        if (window.location.href.indexOf('news.php') > 0) {
            navnewsoff.src = news[activeColour]['on'];
            document ['navnews'].src = navnewsoff.src;
        }
        if (window.location.href.indexOf('events.php') > 0) { 
            naveventsoff.src = events[activeColour]['on'];
            document ['navevents'].src = naveventsoff.src;
        }
        if (window.location.href.indexOf('jobs.php') > 0) { 
            navjobsoff.src = jobs[activeColour]['on'];
            document ['navjobs'].src = navjobsoff.src;
        }
        if (window.location.href.indexOf('whyjoin.php') > 0) {
            navwhyjoinoff.src = whyjoin[activeColour]['on'];
            document ['navwhyjoin'].src = navwhyjoinoff.src;
        }
        if (window.location.href.indexOf('members.php') > 0) {
            navmembersonlyoff.src = membersonly[activeColour]['on'];
            document ['navmembersonly'].src = navmembersonlyoff.src;
        }
        if (window.location.href.indexOf('login.php') > 0) {
            navmembersonlyoff.src = membersonly[activeColour]['on'];
            document ['navmembersonly'].src = navmembersonlyoff.src;
        }
        if (window.location.href.indexOf('aboutus.php') > 0) {
            navaboutusoff.src = aboutus[activeColour]['on'];
            document ['navaboutus'].src = navaboutusoff.src;
        }
        if (window.location.href.indexOf('contactus.php') > 0) {
            navcontactusoff.src = contactus[activeColour]['on'];
            document ['navcontactus'].src = navcontactusoff.src;
        }
    }

}