global.Collection.changeRow = function (itemId, fieldId, file)
{
var columns = [];
var aux = global.Collection.ajax.genRow (itemId, file, fieldId);
eval (aux);
var row = global.Collection.makeRow (itemId, columns);
var previous = $('collection_row_' + itemId).previous ();
$('collection_row_' + itemId).remove ();
previous.insert ({ after: row });
}