function showAnswer(theId)
{

    answer = document.getElementById(theId);
    answer.style.visibility = "visible";

}
function hideAnswer(theId)
{
     document.getElementById(theId).style.visibility = "hidden";
}

function showNextAnswer(answerNumber)
{
	var nextAnswerNumber = answerNumber + 1;
	//alert('tr_poll_answer'+nextAnswerNumber);
  var nextAnswer = document.getElementById('tr_poll_answer'+nextAnswerNumber);
  if(nextAnswer)
  {
	  nextAnswer.setAttribute('class', 'displayAll');
		nextAnswer.setAttribute('className', 'displayAll');
  }
  else
  {
  	//alert("ei");
  }
}

function toggleSerieData(serieID, activeTab)
{
  var inactiveTab = (activeTab == 'info') ? 'authors' : 'info';
  var tab_active = document.getElementById('serie_'+activeTab+'_'+serieID);
  var tab_inactive = document.getElementById('serie_'+inactiveTab+'_'+serieID);
  var tab1_active = document.getElementById('serietab_'+activeTab+'_'+serieID);
  var tab1_inactive = document.getElementById('serietab_'+inactiveTab+'_'+serieID);
  if(tab_active && tab_inactive && tab1_active && tab1_inactive)
  {
    tab_inactive.setAttribute('class', 'displayNone');
  	tab_inactive.setAttribute('className', 'displayNone');

  	tab1_inactive.setAttribute('class', 'displayAll');
  	tab1_inactive.setAttribute('className', 'displayAll');

    tab_active.setAttribute('class', 'displayAll');
  	tab_active.setAttribute('className', 'displayAll');

    tab1_active.setAttribute('class', 'active');
  	tab1_active.setAttribute('className', 'active');
  }
}


function mopen(id)
{
	mcancelclosetime();

	if(ddmenuitem) ddmenuitem.style.visibility = 'hidden';
	ddmenuitem = document.getElementById(id);
	ddmenuitem.style.visibility = 'visible';

}

function mclose()
{
	if(ddmenuitem) ddmenuitem.style.visibility = 'hidden';
}

function mclosetime()
{
	closetimer = window.setTimeout(mclose, timeout);
}

function mcancelclosetime()
{
	if(closetimer)
	{
		window.clearTimeout(closetimer);
		closetimer = null;
	}
}