function showHide()
{
    var height = document.getElementById('hdn_height').value;
    document.getElementById('dhtmlgoodies_a1').style.display='block';
    document.getElementById('dhtmlgoodies_a1').style.visibility='visible';
    document.getElementById('dhtmlgoodies_a1').style.height= height + 'px';
    document.getElementById('dhtmlgoodies_ac1').style.top='0px';
}