check for class and function in coffeescript

class @kdApi
	
	constructor : (className,funcName) ->
		data = @runFunction(className,funcName,data)			
	
	getInstance : (className) ->
		inst = false
		try	if eval(className) then inst = eval("new "+className+"()")
		return inst
	
	runFunction : (className,funcName,data) ->
		instance = @getInstance(className)
		instance[funcName](data) if instance and instance[funcName]?
		return instance