function is_child_of(parent, child) {
			if( child != null ) {			
				while( child.parentNode ) {
					if( (child = child.parentNode) == parent ) {
						return true;
					}
				}
			}
			return false;
		}
function hide_thumb_caption(element, event, id) {
			var current_mouse_target = null;
			if( event.toElement ) {				
				current_mouse_target 			 = event.toElement;
			} else if( event.relatedTarget ) {				
				current_mouse_target 			 = event.relatedTarget;
			}
			if( !is_child_of(element, current_mouse_target) && element != current_mouse_target ) {
				$('#slider_thumb_'+id).slideUp('fast');
			}
		}

function show_thumb_caption(id) 
{
			$('#slider_thumb_'+id).slideDown('fast');
}