How to pass a Class as a parameter of a method?

Question

I have a method like below. Inside this method I need to create a variable that his type is the type of the class I have passed as a method's parameter.
For example, if I call the method like this "Meth1(ClassPerson);" insed the method I need to declare a  variable of class "ClassPerson", but if I call like "Meth1(ClassCity);" I need the same variable to be declared as a ClassCity.
public function Meth1( /*I dont know what to put here*/   ):void{
     /*I dont know what to put here to declare my variable*/
     /*here
     comes
     more
     code
     using
     the
     variable*/
I tried as below but dont worked:
public function Meth1( classtype:Class):void{
     var var1:classtype = new classtype();
Can someone help me?

Answer 1

evyatarBH, after declare the variable like you said an error occurs when I try to access some property of the variable. I receive a mesage telling that this property dont exists.
public function Meth1( classtype:Class ):void{
     var var1:* = new ClassFactory(classe);
     //when I try to do something like the line below the error appear
     inputtext1.text = var1.fieldname;
rashare, I can't do this because I can't declare the object before the method is called. I must inform to the method only which class I will use, but the object must be created only inside the method.