var ttl = 11;// total number images
var interval = 10000;// delay
var img = Math.floor(Math.random()*11); //var img = 1;
var images = new Array();
for (i = 1; i <= ttl; i++)// Preload images
{
   images[i] = new Image();
   images[i].src='/home/web/images/homepage/i/' + i + '.jpg';
}
slideNeg = false;
slidePos = false;
changeImage = function(dir)
{
    if(dir == 'next')
    {
        img++;
        if(img > ttl)
            img = 1;        
       $('imgNav').style.backgroundImage = 'url(' + images[img].src + ')';
        if(slideNeg)
            clearInterval(slideNeg);
        if(!slidePos)
            slidePos = setInterval('changeImage("next")', interval);
    }
    else
    {
        img--;
        if(img < 1)
            img = ttl;
        $('imgNav').style.backgroundImage = 'url(' + images[img].src + ')';
        if(slidePos)
            clearInterval(slidePos);
        if(!slideNeg)
            slideNeg = setInterval('changeImage("prev")', interval);
    }
}

pause = function()
{
    if(slidePos)
    {
        clearInterval(slidePos);
        slidePos = false;
    }
    if(slideNeg)
    {
        clearInterval(slideNeg);
        slideNeg = false;
    }
}

womAdd('changeImage("next")');