function nextgen_lightbox_filter_selector($, selector){
if(nextgen_lightbox_settings&&nextgen_lightbox_settings.context){
var context=nextgen_lightbox_settings.context;
if(context=='all_images'){
selector=selector.add($('a > img').parent());
}
else if(context=='all_images_direct'){
selector=selector.add($('a[href] > img').parent()
.filter(function(){
var href=$(this).attr('href').toLowerCase();
var ext=href.substring(href.length - 3);
var ext2=href.substring(href.length - 4);
return (ext=='jpg'||ext=='gif'||ext=='png'||ext2=='tiff'||ext2=='jpeg'||ext2=='webp');
}));
}
else if(context=='nextgen_and_wp_images'){
selector=selector.add($('a > img[class*="wp-image-"]').parent());
}
selector=selector.not('.gallery_link');
selector=selector.not('.use_imagebrowser_effect');
}
return selector;
};