<script language="javascript">
        function toggle() {
    var ele = document.getElementById("toggleText");
    var text = document.getElementById("displayText");
    if(ele.style.display == "block") {
            ele.style.display = "none";
    }
    else {
        ele.style.display = "block";
    }
}
</script>
<a id="displayText" href="javascript:toggle();">info</a>
<div id="toggleText" style="display: none"> <?php echo $image->description ?> </div>