}
private void importSheetImages(SheetImpl zkSheet, jxl.Sheet sheet){
final int sz = sheet.getNumberOfImages();
for(int i =0; i < sz; i++){
Drawing drawing = (Drawing) sheet.getDrawing(i);
ZssDrawing zd = new ZssDrawing(drawing);
try {
final Image image = new ImageImpl(zd.getName(), zd.getAlt(), zd.getImageData(),
zd.getTop(), zd.getTopFraction() / 256d,
zd.getLeft(), zd.getLeftFraction() / 1024d,