var pictures = new Array("/eec/images/eecindex1.jpg",
							 "/eec/images/eecindex3.jpg", 
							 "/eec/images/eecindex4.jpg");
    var alternate = 0;
	var alternate1 = 1;
    var timerId;
    function showIcon()
    {
        alternate = (alternate > 1) ? 0 :alternate+1;
        document.getElementById('eecIndex').src = pictures[alternate];
        timerId = setTimeout("showIcon()", 4000);
    }