A Javascript/Mootools method that implements a generic count method for all variable types

$count.js

function $count(obj){
    var childs = [];
	if (!obj) return 0;
	
    switch($type(obj)){
        case 'number'  : return obj; 
        
        case 'function':
            return ((obj+"").test(/[{]([\W]*[\w]+[\W\w]*)[}]/)) ? 1: 0;
            
        case 'object'  : return $H(obj).getLength(); 
        
        case 'window'  :
        case 'document':
        case 'element' : 
            return obj.getChildren().length;
    }
	
    return (obj.length) ?
        obj.length :
        ($type(+obj)) ? +obj : 1;
}