function ListSelectCB(list)
{
   f = document.mainform;

   if ( list.name == 'datelist' )
   {
      f.image.value = list[list.selectedIndex].value;
      f.action = "fluxmaps.php?type=" + f.type.value + "#imagetable";
   }
   if ( list.name == 'optlist' )
   {
      f.option.value = list[list.selectedIndex].value;
      f.dirinfo.value = '';
      f.image.value = '';
      f.action = "fluxmaps.php?type=" + f.type.value + "#imagetable";
   }
   f.submit();
}

function ImageCB(img)
{
   f = document.mainform;

   f.image.value = img;
   f.action = "fluxmaps.php?type=" + f.type.value + "#imagetable";
   f.submit();
}

function RegionCB(list)
{
   f = document.mainform;

   f.type.value = list[list.selectedIndex].value;
   f.dirinfo.value = '';
   
   f.action = "fluxmaps.php?type=" + f.type.value + "#imagetable";
   
   f.submit();
}