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 ShowArtifact(pFileName) {
    var xViewer = document.getElementById('Viewer');
    var xViewerObject = document.getElementById('ViewerObject');
    var xPaper = document.getElementById('Layout');

    var xType = String(pFileName).substr(String(pFileName).length - 3, 3)
    if (xType == 'pdf') {
        xViewerObject.innerHTML = '<object data="artifacts/' + pFileName + '" type="application/pdf" width="800" height="600">';
    } else {
        xViewerObject.innerHTML = '<img src="Photos/viewer/Photo' + pFileName + '.jpg" >';
    }
    xViewer.style.left = (findPosX(xPaper) + (870 - 800) / 2) + 'px';
    xViewer.style.visibility = 'visible';

}


function CloseArtifact() {
    var xViewer = document.getElementById('Viewer');
    var xViewerObject = document.getElementById('ViewerObject');
    xViewer.style.visibility = 'hidden';
    xViewerObject.innerHTML = '';
}