Javascript Array Deferencing?

I have an array, say:

var pieces = [2008, 5, 19, 13, 49];

I’d like to create a date based on this; the equivalent of:

new Date( 2008, 5, 19, 13, 49 );

Is there a way to do that in Javascript? Can I dereference the array in my date create call? I’d prefer to avoid eval.