function sparkSafeLoader(cb,module){
	var fn = function(){
		if(!module)
          cb();
        else
          document.Spark.getModuleReady( module, cb, true);
	};
	if( document.Spark )
	{
		fn();
	}
	else
	{
		window.addEvent && window.addEvent('load',fn);
		!window.addEvent && setTimeout(fn,1000);
	} 
}