function show(i)
      {
    var menuid = document.getElementById( i );
       menuid.style.display = "block"; 
    menuid.style.position="absolute"; 
    }

  function hide(i)
    {
    var menuid = document.getElementById( i );
    menuid.style.display = "none" ;
    }

function update(pic, target) {
 	document.getElementById(target).innerHTML = "<img src=" + pic + ">"
}



    function onOk() {
        window.location = 'survey.aspx';
    }