var globalSrc;

function changePict(imageUrl) {

var image = new Image();

globalSrc = imageUrl;

image.onload = function() {
	var img = document.getElementById("imageToChange");
	var e1 = new Effect.Opacity(img, { duration: 1.0,  from: 1.0, to: 0, queue: {scope: 'myscope' } } );

	window.setTimeout(function() { document.getElementById("imageToChange").src = globalSrc }, 1000);
	
	var e2 = new Effect.Opacity(img, { duration: 1.0, from: 0, to: 1.0, queue: {scope: 'myscope', position:'end' } });
}

image.src = imageUrl;

}