addLoadListener(init);

function init()
{
  var del2 = document.getElementById("del2");
  del2.className = "hidden";
  
  var del3 = document.getElementById("del3");
  del3.className = "hidden";
  
  var del4 = document.getElementById("del4");
  del4.className = "hidden";
  
  var del5 = document.getElementById("del5");
  del5.className = "hidden";
  
  var addDel3 = document.getElementById("addDel3");
  addDel3.className = "hidden";
  
  var addDel4 = document.getElementById("addDel4");
  addDel4.className = "hidden";
  
  var addDel5 = document.getElementById("addDel5");
  addDel5.className = "hidden";
  
  var addDel2 = document.getElementById("addDel2");
  addDel2.onclick = showOptional2;
  
  var addDel3 = document.getElementById("addDel3");
  addDel3.onclick = showOptional3;
  
  var addDel4 = document.getElementById("addDel4");
  addDel4.onclick = showOptional4;
  
  var addDel5 = document.getElementById("addDel5");
  addDel5.onclick = showOptional5;
  

 
 
  return true;
}

function showOptional2()
{
  var del2 = document.getElementById("del2");
  del2.className = "";
  
  var addDel2 = document.getElementById("addDel2");
  addDel2.className = "hidden";
  
  var addDel3 = document.getElementById("addDel3");
  addDel3.className = "";
  
 
 

  return true;
}

function showOptional3()
{
  var del3 = document.getElementById("del3");
  del3.className = "";
  
  var addDel3 = document.getElementById("addDel3");
  addDel3.className = "hidden";
  
  var addDel4 = document.getElementById("addDel4");
  addDel4.className = "";
  
 

  return true;
}


function showOptional4()
{
  var del4 = document.getElementById("del4");
  del4.className = "";
  
  var addDel4 = document.getElementById("addDel4");
  addDel4.className = "hidden";
  
  var addDel5 = document.getElementById("addDel5");
  addDel5.className = "";
 

  return true;
}


function showOptional5()
{
  var del5 = document.getElementById("del5");
  del5.className = "";
  
  var addDel5 = document.getElementById("addDel5");
  addDel5.className = "hidden";
  
  

  return true;
}




function addLoadListener(fn)
{
  if (typeof window.addEventListener != 'undefined')
  {
    window.addEventListener('load', fn, false);
  }
  else if (typeof document.addEventListener != 'undefined')
  {
    document.addEventListener('load', fn, false);
  }
  else if (typeof window.attachEvent != 'undefined')
  {
    window.attachEvent('onload', fn);
  }
  else
  {
    var oldfn = window.onload;
    if (typeof window.onload != 'function')
    {
      window.onload = fn;
    }
    else
    {
      window.onload = function()
      {
        oldfn();
        fn();
      };
    }
  }
}