var nav_position;

function keyEventFunction(event) {
    switch (event){
        case "LEFT" 	: left(); 	break;
        case "RIGHT" 	: right(); 	break;
        case "OK" 		: enter();		break;
    }
}

function init() {
    loadButtons();
    initiateKeyHandler();
    nav_position = "start";
    markButton("start");
    
    if (typeof(params.logged) === 'undefined' || params.logged !== 'yes'){
        logHit();   
    }
}
			
function left() {
    switch (nav_position) {
        case "start":
            break;
        case "rules":
            unMarkButton(nav_position);
            nav_position = "start";
            markButton(nav_position);
            break;
        case "exit":
            unMarkButton(nav_position);
            nav_position = "rules";
            markButton(nav_position);
            break;
    }
}

function right() {
    switch (nav_position) {
        case "start":
            unMarkButton(nav_position);
            nav_position = "rules";
            markButton(nav_position);
            break;
        case "rules":
            unMarkButton(nav_position);
            nav_position = "exit";
            markButton(nav_position);
            break;
        case "exit":
            break;
    }
}

function enter() {
    switch (nav_position) {
        case "start":
            window.location = 'mode.html?' + accedobroadband.querystring.parameters(['logged=yes']);
            break;
        case "rules":
            window.location = 'help.html?' + accedobroadband.querystring.parameters(['pagenumber=1', 'logged=yes']);
            break;
        case "exit":
            window.location = '../../';
            break;
    }
}


function markButton(position) {	// Markerar ett valalternativ
    document.images[position].src = "img/"+params.lang+"/start/"+position+"_on.gif";
}

function unMarkButton(position) {	// Avmarkera ett alternativ
    document.images[position].src = "img/"+params.lang+"/start/"+position+".gif";
}

function loadButtons() {
    unMarkButton("start");
    unMarkButton("rules");
    //unMarkButton("exit");
}