function show_caption($num){
   $elem=document.getElementById('frontcaption'+$num);
   if(!$elem)return false;
   $elem.style.display='block';
   setTimeout('flash_caption('+$num+')',1000);
}
function flash_caption($num){
   $elem=document.getElementById('frontcaption'+$num);
   if(!$elem)return false;
	 $elem.style.backgroundColor='#364030';
	 setTimeout('hide_caption('+$num+')',100);
}
function hide_caption($num){
   $elem=document.getElementById('frontcaption'+$num);
   if(!$elem)return false;
   $elem.style.display='none';
	 $elem.style.backgroundColor='#54614C';
}