var showed = new Array();
var gen = 0;

function getRandom(min,max) {
    if (showed.length == 21) {
        showed = new Array();
    }
    num = (Math.round(Math.random()*(max-min)))+min;
    showed.each(function(elem){
            if (num==elem) {
                gen=gen+1;
            } 
        });

    if (gen>0) {
        gen = 0;
        return 0;
    }
    else {
        gen = 0;
        return num;
    }
}

function changeimage() {
    image = 0;
    while(image==0) {
        image = getRandom(1,21);
    }
    showed.push(image);

    alt = new Array(
        "RYNEK KRAKOWSKI 2007, FRAGMENT",
        "OBRAZY OLEJNE NA PŁÓTNIE MALOWANIE SZPACHLĄ",
        "ZAUŁEK PROWANSALSKI - GRIMAUD 2007, FRAGMENT", 
        "AUREL 2008, FRAGMENT",
        "Barbara JAŚKIEWICZ - MALARSTWO SZTALUGOWE, OBRAZY OLEJNE MALOWANE SZPACHLĄ",
        "ZAUŁEK PROWANSALSKI ST PAUL 2007, FRAGMENT",
        "PORTRET DZIEWCZYNY Z KOTKĄ, 2005, FRAGMENT",
        "PEONIE 2007, FRAGMENT",
        "POLE LAWENDOWE 2007, FRAGMENT",
        "PEJZAŻ PROWANSALSKI 2007, FRAGMENT",
        "Barbara JAŚKIEWICZ - MALARSTWO SZTALUGOWE, OBRAZY OLEJNE MALOWANE SZPACHLĄ",
        "PRACOWNIA MALARSKA ARTYSTKI",
        "Barbara JAŚKIEWICZ - MALARSTWO SZTALUGOWE, OBRAZY OLEJNE MALOWANE SZPACHLĄ",
        "OBRAZY OLEJNE NA PŁÓTNIE MALOWANE SZPACHLĄ",
        "CZYTAJĄCA DZIEWCZYNA 2001",
        "RYNEK KRAKOWSKI 2007, FRAGMENT",
        "KANAŁ W WENECJI 2006",
        "MAKI 2008, FRAGMENT",
        "TARG W PROWANSJI 2008, FRAGMENT",
        "BARBARA JAŚKIEWICZ",
        "OGRÓD BOTANICZNY WE WROCŁAWIU 2008, FRAGMENT",
        "ZAUŁEK PROWANSALSKI - GASSIN 2008",
        "WENECJA 2008, FRAGMENT",
        "POLE MAKOWE 2008, FRAGMENT",
        "PRACOWNIA MALARSKA ARTYSKI"
            );

    alt_eng = new Array(
        "KRAKOW MARKET SQUARE 2007, DETAIL",
        "ORIGINAL OIL ON CANVAS WITH A PALETTE KNIFE",
        "PROVENCAL BACKSTREET - GRIMAUD 2007, DETAIL",
        "AUREL 2008, DETAIL",
        "Barbara JASKIEWICZ - ORIGINAL IMPRESSIONIST PAINTINGS PALETTE KNIFE OIL ON CANVAS",
        "PROVENCAL BACKSTREET ST PAUL 2007, DETAIL",
        "PORTRAIT OF A GIRL WITH A CAT 2005, DETAIL",
        "PEONIES 2007, DETAIL",
        "LAVENDER IN PROVENCE 2007, DETAIL",
        "LAVENDER IN PROVENCE 2007, DETAIL",
        "Barbara JASKIEWICZ - ORIGINAL IMPRESSIONIST PAINTINGS PALETTE KNIFE OIL ON CANVAS",
        "VIEW INTO THE ARTIST'S STUDIO",
        "Barbara JASKIEWICZ - ORIGINAL IMPRESSIONIST PAINTINGS PALETTE KNIFE OIL ON CANVAS",
        "ORIGINAL OIL ON CANVAS WITH A PALETTE KNIFE",
        "GIRL READING 2001",
        "KRAKOW MARKET SQUARE 2007, DETAIL",
        "VENICE CANAL 2006",
        "POPPY 2008, DETAIL",
        "PROVENCAL MARCHE 2008, DETAIL",
        "BARBARA JASKIEWICZ",
        "THE BOTANICAL GARDEN - WROCLAW 2008, DETAIL",
        "PROVENCAL BACKSTREET - GASSIN 2008",
        "VENICE 2008, DETAIL",
        "POPPY FIELD 2008, DETAIL",
        "VIEW INTO THE ARTIST'S STUDIO"
        );


    if ($('slideimage').className == "first") {
                    $("slideimage").src="images/home/"+image+".jpg";
                    /* 
 *					if ($('en_EN')) {
                        $("slideimage").setAttribute('alt', alt_eng[image-1]);
                    }
                    else {
                        $("slideimage").setAttribute('alt', alt[image-1]);
                    } */
                    $('slideimage').className = "";
                    setTimeout("changeimage()",1250);
                
    } else {
        new Effect.Appear($("slideimage"), {duration: 2,
            afterFinish: function (obj) {
                    new Effect.Fade($("slideimage"), {duration: 1, delay: 2,
                        afterFinish: 
                            function (obj) {
                        $("slideimage").src="images/home/"+image+".jpg";
						/*
                        if ($('en_EN')) {
                            $("slideimage").setAttribute('alt', alt_eng[image-1]);
                        } else {
                            $("slideimage").setAttribute('alt', alt[image-1]);
                        }
						*/
                        setTimeout("changeimage()",1250);
                        }});
                    }});

    }
    
}