If (# between 2 values)

1

How can i shorten this or write a faster piece of code to do it?

trace(between(33)); //20

function between(value:Number):Number
{
    switch (true)
    {
        case (value<10) :
            return 10;
            break;
        case (value>20) :
            return 20;
            break;
        default :
            return value;
            break;
    }
}

thanks
just trying to learn to code better