function hidepic() {
  document.getElementById("fullback").style.visibility = "hidden";
    document.getElementById("go_left").style.visibility = "hidden";
    document.getElementById("go_right").style.visibility = "hidden";
}

function changepic(datum, count) {
  document.getElementById("fullimage").src = "images/loading.gif";
  actual_pic += count;
	if (actual_pic > 10040) actual_pic = 10001;
	else if (actual_pic < 10001) actual_pic = 10040;
  document.getElementById("fullimage").src = "gallery/"+datum+"/pic"+actual_pic+".jpg";
}

function showpic(objekt, go_show){
  document.getElementById("fullback").style.visibility = "visible";
  document.getElementById("fullimage").src = objekt;
}