function disable_checkbox(mycheckbox) {
  cb = document.photointmp.elements[mycheckbox]
  if(cb.disabled)
    cb.disabled = false;
  else
    cb.disabled = true;
}

function switch_checkbox(del, move) {
  del = document.photointmp.elements[del];
  move = document.photointmp.elements[move];
  if(move.checked) {
    move.checked = false;
    del.disabled = false;
    del.checked = false;
  } else {
    del.checked = false;
    del.disabled = true;
    move.disabled = false;
    move.checked = true;
  }
}

function change_on_click(mycheckbox) {
  cb = document.display_photo.elements[mycheckbox];
  if(cb.checked)
    cb.checked = false;
  else
    cb.checked = true;
}

function popup_big(url, name) {
  newwin = window.open(url, name, 'width=560, height=600, scrollbars=1,resizable=1');
}

function popup_txt(url, name) {
  newwin = window.open(url, name, 'width=560, height=600, scrollbars=1,resizable=1');
}

function toggle_detail_photo() {
  status = document.detail_photo.toggle_checkbox.checked;
  els = document.detail_photo.elements.length;
  for(i = 1; i < els; i++) {
    document.detail_photo.elements[i].checked = status;
  }
}

function MM_preloadImages() {
  var d=document; if(d.images) {
    if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; 
    for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0) { 
      d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];
    }
  }
}