+
+ // mike@macgirvin.com 2011-11-17, check attribute name for
+ // validity (ignoring extenders and combiners) as illegal chars in names
+ // causes everything to abort
+
+ $valid = preg_match('/^[a-zA-Z\_\:]([\-a-zA-Z0-9\_\:\.]+$)/',$attr['name']);
+ if($attr['name'] && (!$el->hasAttribute($attr['name'])) && ($valid)) {