function findPosX(obj) {
    var curleft = 0;
    if (obj.offsetParent) {
        while (1) {
            curleft+=obj.offsetLeft;
            if (!obj.offsetParent) {
                break;
            }
            obj=obj.offsetParent;
        }
    } else if (obj.x) {
        curleft+=obj.x;
    }
    return curleft;
}
function findPosY(obj) {
    var curtop = 0;
    if (obj.offsetParent) {
        while (1) {
            curtop+=obj.offsetTop;
            if (!obj.offsetParent) {
                break;
            }
            obj=obj.offsetParent;
        }
    } else if (obj.y) {
        curtop+=obj.y;
    }
    return curtop;
}

function show(obj)
{
	var el = document.getElementById("photogrid_container");
	var sourceId = obj.id
	var sourceEl = document.getElementById(sourceId);
	var targetId = obj.id + "d";
	var targetEl = document.getElementById(targetId);
	
	if(targetEl.style.display == "none")
	{
		el.style.display = "none";
		targetEl.style.display = "block";
	}
	else
	{
		targetEl.style.display = "none";
		el.style.display = "block";
	}
}