function toggleLayer(whichLayer) {
    var elem, vis;
    elem = document.getElementById( whichLayer );
    vis = elem.style;
    
    if(vis.display==''&&elem.offsetWidth!=undefined&&elem.offsetHeight!=undefined)
        vis.display = (elem.offsetWidth!=0&&elem.offsetHeight!=0)?'block':'none';
    vis.display = (vis.display==''||vis.display=='block')?'none':'block';
}

$(function() {
    var viewHeight = $(window).height();
    $("#callMe").css("top", viewHeight-85);
});