function addLoadEvent(func) {
  var oldonload = window.onload;
  if (typeof window.onload != 'function') {
    window.onload = func;
  } else {
    window.onload = function() {
      oldonload();
      func();
    }
  }
}

function opacity(id, opacStart, opacEnd, millisec) {
    //speed for each frame
    var speed = Math.round(millisec / 100);
    var timer = 0;

    //determine the direction for the blending, if start and end are the same nothing happens
    if(opacStart > opacEnd) {
        for(i = opacStart; i >= opacEnd; i--) {
            setTimeout("changeOpac(" + i + ",'" + id + "')",(timer * speed));
            timer++;
        }
    } else if(opacStart < opacEnd) {
        for(i = opacStart; i <= opacEnd; i++)
            {
            setTimeout("changeOpac(" + i + ",'" + id + "')",(timer * speed));
            timer++;
        }
    }
}

//change the opacity for different browsers
function changeOpac(opacity, id) {
    var object = document.getElementById(id).style;
    object.opacity = (opacity / 100);
    object.MozOpacity = (opacity / 100);
    object.KhtmlOpacity = (opacity / 100);
    object.filter = "alpha(opacity=" + opacity + ")";
}

function moveElement(elementID,final_x,final_y,interval) {
  if (!document.getElementById) return false;
  if (!document.getElementById(elementID)) return false;
  var elem = document.getElementById(elementID);
  if (elem.movement) {
    clearTimeout(elem.movement);
  }
  if (!elem.style.left) {
    elem.style.left = "0px";
  }
  if (!elem.style.top) {
    elem.style.top = "0px";
  }
  var xpos = parseInt(elem.style.left);
  var ypos = parseInt(elem.style.top);
  if (xpos == final_x && ypos == final_y) {
    return true;
  }
  if (xpos < final_x) {
    var dist = Math.ceil((final_x - xpos)/10);
    xpos = xpos + dist;
  }
  if (xpos > final_x) {
    var dist = Math.ceil((xpos - final_x)/10);
    xpos = xpos - dist;
  }
  if (ypos < final_y) {
    var dist = Math.ceil((final_y - ypos)/10);
    ypos = ypos + dist;
  }
  if (ypos > final_y) {
    var dist = Math.ceil((ypos - final_y)/10);
    ypos = ypos - dist;
  }
  elem.style.left = xpos + "px";
  elem.style.top = ypos + "px";
  var repeat = "moveElement('"+elementID+"',"+final_x+","+final_y+","+interval+")";
  elem.movement = setTimeout(repeat,interval);
}

function imageSwap(whichpic) {
	var galleryImage = document.getElementById("galleryImage");
	var source = whichpic.getAttribute("href");
	galleryImage.setAttribute('src', source);
	var title = whichpic.getAttribute("rel");
	var imageText = document.getElementById("imageText");
	imageText.firstChild.nodeValue = title;
	setTimeout("document.getElementById('image').style.display='block'", 999);
	return false;
}

function fadeGalleryOut() {
	var gallery = document.getElementById("gallery");
	var links = gallery.getElementsByTagName("a");
	for (var i=0; i<links.length; i++) {
		links[i].onclick = function() {
			opacity("wrapper", 100, 0 , 500); 	
			setTimeout("document.getElementById('wrapper').style.display='none'", 1000)
			return imageSwap(this);
			return false;		
		}
	}
}

function hideImage() {
	var image = document.getElementById("image");
	image.style.display = "none";
	/*var galleryImage = document.getElementById("galleryImage");
	galleryImage.setAttribute("src", "images/ajax-loader.gif");*/
	setTimeout("document.getElementById('galleryImage').setAttribute('src', 'images/ajax-loader.gif')", 50)
}

function moveGalleryIn() {
	var wrapper = document.getElementById("wrapper");
			var image = document.getElementById("image");
			image.onclick = function() {
			wrapper.style.display = "block";
			opacity("wrapper", 0, 100 , 500);		
			/*showImage();*/
			//setTimeout("function(){return imageSwap(this)}", 50);
            hideImage();
			return false;		
		}
	}


addLoadEvent(fadeGalleryOut);
addLoadEvent(moveGalleryIn);