Activate html tags with a filled data-src-attr and an empty src-attr

fpl_activate_data_src_tags_jquery.js

$( 'iframe[data-src], script[data-src]' ).each( function() {
	$this = $( this );
	$this.attr( 'src', $this.attr( 'data-src' ) );
) ); //you should do this after a visitors approval

/* Note: the jQuery-selector above is not the best selector for performance, to use a class instead would be better */