var x = 1.0;
var t;

function darken(i){
	if(x > 0.5){
		x = x - 0.05;
		i.style.opacity = x;
		i.style.filter = 'Alpha(opacity=' + x * 100 + ')';
		t=setTimeout("darken(i)", 50);
	} else lighten(i);
}

function lighten(i){
	if(x < 1.0){
		x = x + 0.05;
		i.style.opacity = x;
		i.style.filter = 'Alpha(opacity=' + x * 100 + ')';
		t=setTimeout("lighten(i)", 50);
	} else darken(i);
}

function out(i){
	clearTimeout(t);
	x = 1.0;
	i.style.opacity = x;
	i.style.filter = 'Alpha(opacity=' + x * 100 +')';
}