var currentPosition = 3;
var moving = false;

function move(x)
{
	if (moving == false)
	{
		if (currentPosition != x)
		{
			var container = document.getElementById('index_center_container');
			var overlay = document.getElementById('index_center_overlay');
			
			var t = new Tween(overlay.style, 'left', Tween.strongEaseIn, currentPosition * -245, x * -245,0.4,'px');
			t.start();
			
			var t1 = new Tween(container.style, 'left', Tween.strongEaseIn, currentPosition * -981, x * -981,0.4,'px');
			t1.start();
			
			moving = true;
			currentPosition = x;
			
			t.onMotionFinished = function () {moving = false};
		}
	}
}