docs: function(xpect, arg, index) {
  		var needs = !xpect.startsWith("(");
  		var split = this._xtract(xpect, !needs).split("|");
  		var input = gui.Type.of(arg);
  		var match = (xpect === "*" ||
  			(xpect === 'node' && arg && arg.nodeType) || 
  			(xpect === 'element' && arg && arg.nodeType === Node.ELEMENT_NODE) || 
  			(xpect === 'spirit' && arg && arg.$instanceid && arg.element) || 
  			(!needs && input === "undefined") ||
  			(!needs && split.indexOf("*") > -1) ||
  			split.indexOf(input) > -1);
  		if (!match && this._validating) {
  			if (input === "string") {
  				arg = '"' + arg + '"';
  			}
  			this._bugsummary = [index, xpect, input, arg];
  		}
  		return match;
  	}