function show(id) {
	var img = document.getElementById(id);
	img.src = img.src.replace("_off", "_on");
}
function hide(id) {
	var img = document.getElementById(id);
	img.src = img.src.replace("_on", "_off");
}
function newWindow (name,enlargement,width,height) {
	id = window.open(enlargement,name,'toolbar=no,location=no,scrollbars=yes,width='+width+',height=' +height);
	id.focus();
}
  function newWindowUnder (name,enlargement,width,height) {
  window.open(enlargement,name,'toolbar=no,location=no,scrollbars=yes,width='+width+',height=' +height);
}