var bgSwitch = true;

var imgobj1 = document.getElementById('bgimage1');
var imgobj2 = document.getElementById('bgimage2');

var img1 = new Image (1200,900);
img1.onload=fadeLater;
img1.src = img[1];

imgobj1.style.backgroundImage = "url('"+img[0]+"')";
//imgobj2.style.backgroundImage = "url('"+img[0]+"')";


function fadeLater() {
//  imgobj1.style.backgroundImage = "url('"+img1.src+"')";
  setTimeout("fade()", 3000);
}

 
var c = 1;
var oc = 0;
var v = 75;

function fade() {
      if (v > 5) {
        v = v - 5;
        imgobj1.style.opacity = v/100;
        imgobj1.style.filter = 'alpha(opacity=' + v + ')';
        setTimeout("fade()", 50);
      } else {
        imgobj1.style.opacity = 0;
        imgobj1.style.filter = 'alpha(opacity=0)';
        v = 0;
        imgobj1.style.backgroundImage = "url('"+img1.src+"')";
        imgobj1.style.backgroundPosition = "center top";
        setTimeout("defade()", 100);
      }
}

function defade() {
      if (v < 75) {
        v = v + 5;
        imgobj1.style.opacity = v/100;
        imgobj1.style.filter = 'alpha(opacity=' + v + ')';
        setTimeout("defade()", 50);
      } else {
        imgobj1.style.opacity = 0.75;
        imgobj1.style.filter = 'alpha(opacity=75)';
        oc = c;
        c ++;
        if (c>=img.length) {
          c=0;
        }
        v = 75;
        img1.src = img[c];
      }

}