*/
public void rotateAnticlockwiseElements(int[] indexes)throws IndexOutOfBoundsException{
if (indexes.length>0 && indexes.length <= data.size()){
for (int i=0; i<indexes.length; i++){
VisualPageListItem item = data.get(indexes[i]);
item.rotateAnticlockwise();
}
fireContentsChanged(this,indexes[0]-1, indexes[indexes.length-1]);
}
}