function removeElement()
{
document.getElementById("content_1").style.display="none";
document.getElementById("content_2").style.display="none";
}

function show2010()
{
removeElement();
document.getElementById("content_1").style.display="block";
resetClass();
document.getElementById("content1a").setAttribute("class", "current");
}

function show2009()
{
removeElement();
document.getElementById("content_2").style.display="block";
resetClass();
document.getElementById("content2a").setAttribute("class", "current");
}


function resetClass()
{
document.getElementById("content1a").setAttribute("class", "nothing");
document.getElementById("content2a").setAttribute("class", "nothing");

}

function init()
{
document.getElementById("content_1").style.display="block";
document.getElementById("content1a").setAttribute("class", "current");
}