var interval = null;
var timeDelay = 2*1000;
var pictures = new Array               
    ("images/lures/SP2-H-650-worm.gif",
     "images/lures/SP5-B-700-whole-squid.gif",
     "images/lures/SP1-H-600-minnow.gif",
     "images/lures/SP1-B-650-power-leech.gif",
     "images/lures/SP1-B-650-row.gif",
     "images/lures/SP2-H-650-plastic-worm.gif",
     "images/lures/SP4-B-800-smelt.gif",
     "images/lures/SP1-H-650-artificial-minnow.gif",
     "images/lures/SP3-B-700-shad.gif",
     "images/lures/SP5-H-750-cut-bait.gif",
     "images/lures/SP3-B-750-finess-fish.gif",
     "images/lures/SP5-B-700-eel.gif",
     "images/lures/SP3-H-650-piece-squid.gif"
    );
    
var count = pictures.length;
var i = 0;
var current = new Image();
current.src = pictures[i];

function nextimage() {
    i++;
    if (i == count) i = 0;
    current.src = pictures[i];
    var node = document.getElementById("baited-lures")
    if (node != null) node.src = current.src;
}

function previmage() {
    if (i <= 0) i = count-1;
    else i--;
    current.src = pictures[i];
    var node = document.getElementById("baited-lures")
    if (node != null) node.src = current.src;
}

function autocycle(button) {
    if (interval == null) {
        button.src="images/auto-cycle-off.gif";
        nextimage();
        interval = setInterval("nextimage()", timeDelay);
    }
    else {
        button.src="images/auto-cycle-on.gif";
        clearInterval(interval);
        interval = null;
    }
}