Simple problem, Bouncing cursor, fla attached, thanks

1

http://www.kirupa.com/developer/mx/ASmovement.htm

This tutorial shows me how to move 1 pixcel right/left/up/down every 25 milli-seconds which is great but I need to do something completely different.

I have drawn a grid on one layer and I have a movie clip called “test_mc” on another layer. “test_mc” is a just a square that hovers over the grid and highlights a paricular cell in the grid. I have managed to get the test_mc square moving around the grid with this code:


down.onRelease = function()
{
    var bounce = 0;
    // local variables
    if(bounce == 0)
    {
        if(test_mc._y < 412.5)
        {
            test_mc._y += 100;
            trace("bounce" + bounce);
        }
        else
        {
            bounce = 1;
            test_mc._y -= 100;
            trace("bounce" + bounce);
        }
    }
}

This code works fine.

Although I want it to bounce off the bottom and continue to go up until it gets back to square one. Its a simple problem for anyone whos a decent programmer.