#left-arrow,  #right-arrow  {   background:url(../s/groupetid/themes/none.gif) fixed;  }    #left-arrow {filter:progid:dximagetransform.microsoft.alphaimageloader(src=s/groupetid/themes/left-arrow.png', sizingmethod='crop');}    #right-arrow {filter:progid:dximagetransform.microsoft.alphaimageloader(src=s/groupetid/themes/right-arrow.png', sizingmethod='crop');}