stephenh1988 / radio-buttons-for-taxonomies Goto Github PK

This code :
public static function remove_meta_box(){ remove_meta_box(static::$taxonomy_metabox_id, static::$post_type, 'normal'); } public function add_meta_box() { add_meta_box( 'mytaxonomy_id', 'Formats',array(__CLASS__,'metabox'), static::$post_type ,'side','core'); }

Is giving me this error on my live server:
Parse error: syntax error, unexpected T_STATIC, expecting ')'

Which probably has to do with the fact my server is still running PHP 5.2.17 ?
Since I can't upgrade the PHP version: is there any other option to make this work?

This isn't so much an issue as it just seemed the easiest place to ask. I'm actually converting this to a full WP plugin that can be used on any taxonomy by checking a box in the settings. I was looking over the script and I can't tell why the following is necessary?

   $('.postbox').on('click', $('#' + taxonomy + 'checklist li :radio, #' + taxonomy + 'checklist-pop :radio'), function(){  
        var t = $(this), c = t.is(':checked'), id = t.val();  
        $('#' + taxonomy + 'checklist li :radio, #' + taxonomy + 'checklist-pop :radio').prop('checked',false);  
        $('#in-' + taxonomy + '-' + id + ', #in-popular-' + taxonomy + '-' + id).prop( 'checked', c );  
    });  

isn't it just attempting to replicate standard radio button behavior or is it doing something else? thanks for this great piece of code. cheers!