$(document).ready(function() {

	$('.gal').click(function() {
		var gallery_name = $(this).attr('gallery_name');
		$('.gal').removeClass('active_gal');
		$(this).addClass('active_gal');
		handle_gal(gallery_name);
	});
	
});

function handle_gal(gallery_name) {
	$('#gal_iframe').attr('src', site_url + '/'+gallery_name+'.html');
}