Thread: passing variables between functions

Hi all!
As a newbie I try to dig into every basic problem to learn the proper way of programming, instead of make a work-around. My question is: Why is the choice-variable not passed in a proper way? The second time it's printed a very weird number is diplayed

Code:

#include <stdio.h>

int Menu(int choice) 
{	
	printf("enter a number: ");
	scanf("%d", &choice);
	printf ("Choice is: %d\n", choice);
	return choice;
} 

int main(void) 
{
	int choice;
	Menu(choice);
	printf ("Choice is: %d\n", choice);
	return 0;
}

Thanks in advance for answer