if(!ch){
	var ch = {};
}
if(!ch.exmachina){
	ch.exmachina = {};
}
if(!ch.exmachina.bravofly){
	ch.exmachina.bravofly = {};
}
ch.exmachina.bravofly.utils = {
    _node: document.createElement("div"),
    unescapeHTML: function(/**String*/s){
        s = s.toString();
        ch.exmachina.bravofly.utils._node.innerHTML = s;
        return ch.exmachina.bravofly.utils._node.innerText || s.unescapeHTML();
    }
};
ch.exmachina.bravofly.inherits = function(subClass, baseClass){
	function inheritanceHelper(){}
	inheritanceHelper.prototype = baseClass.prototype;
	subClass.prototype = new inheritanceHelper();
	subClass.prototype.constructor = subClass;
	// conservo un riferimento al costruttore della classe base
	subClass.baseConstructor = baseClass;
	// conservo un riferimento alla classe base
	subClass.superClass = baseClass.prototype;
};