--- trunk/public_html/koha.js	2009/03/28 17:20:35	75
+++ trunk/public_html/koha.js	2009/03/28 17:53:26	76
@@ -6,17 +6,30 @@
 	var a = data.split('|');
 	console.info('process', a);
 	$('#test').html( a[1] );
-	if ( a[0] > 0 && ! rfid_selected[ a[0] ] ) {
-		$('#koha').append( '<div class="item" id="' + a[0] + '">Loading item '+a[0]+' from Koha</div>' )
-		$.get( '/koha/' + a[0], function(data) {
-			$('#'+a[0]).html( data );
 
-			rfid_selected[ a[0] ]++;
-			var e = $('#clear_selection');
-			e.attr( 'value', parseInt( e.attr('value') ) + 1 );
-			console.info('loaded item', a[0], data, 'selected', e.attr('value'));
+	var id = a[0];
+
+	console.debug( id, rfid_selected[id] === undefined );
+
+	if ( id > 0 && rfid_selected[ id ] === undefined ) {
+		if ( $('#'+id).length > 0 ) {
+			console.error('element', id, 'allready exists');
+		} else {
+			$('#koha').append( '<div class="item" id="'+id+'">Loading item '+id+' from Koha</div>' )
+			console.debug('created element', id);
+		}
+		$.get( '/koha/' + id, function(data) {
+			$('#'+id).html( data );
+
+			if ( rfid_selected[id] === undefined ) {
+				var e = $('#clear_selection');
+				e.attr( 'value', parseInt( e.attr('value') ) + 1 );
+				console.info('loaded item:', id, ' times:', rfid_selected[ id ], 'total selected:', e.attr('value'));
+			}
+
+			rfid_selected[ id ] = data;
 		});
-	} else if ( a[0] < 0 ) {
+	} else if ( id < 0 ) {
 		console.info("No RFID chips in range");
 	}
 };