$(document).ready(function() {
    var inc = 0;
    var bgImages = new Array();
    bgImages.push('/img/bg/bg1.jpg');
    bgImages.push('/img/bg/bg2.jpg');
    bgImages.push('/img/bg/bg3.jpg');
    bgImages.push('/img/bg/bg4.jpg');
    bgImages.push('/img/bg/bg5.jpg');
    bgImages.push('/img/bg/bg6.jpg');
    bgImages.push('/img/bg/bg7.jpg');
    bgImages.push('/img/bg/bg8.jpg');
    bgImages.push('/img/bg/bg9.jpg');
    bgImages.push('/img/bg/bg10.jpg');

	var preloadArr = new Array();
	var i;
	var j;
	
	/* preload images */
	for(i=0; i < bgImages.length; i++){
		preloadArr[i] = new Image();
		preloadArr[i].src = bgImages[i];
	}

	for (var j, x, i = bgImages.length; i; j = parseInt(Math.random() * i), x = bgImages[--i], bgImages[i] = bgImages[j], bgImages[j] = x);
	change();
    setInterval(change, 5000);
	
    function change() {
        if (inc < (bgImages.length)) {
        	var current = bgImages[inc];
            var image = bgImages[inc];
			// console.log(image);
			 $('#background').css('backgroundImage', 'url(\''+current+'\')');
			 $('#background-inner').stop().animate({opacity: 0}, 1000, function(){
				$(this).css('backgroundImage', 'url(\''+image+'\')');
			}).animate({opacity: 1}, 1000);
            inc++;
        } else {
            inc = 0;
        }
    }
    $("a[rel='external']").click(function(){
		$(this).attr({'target':'_blank'});	
	});

});