var activetab = 1;

function showtab(whichone) {

    if (whichone == 1) {
        document.getElementById("year1").style.display="inline";
        document.getElementById("year2").style.display="none";
        document.getElementById("year3").style.display="none";
        
    }
    
    if (whichone == 2) {
        document.getElementById("year1").style.display="none";
        document.getElementById("year2").style.display="inline";
        document.getElementById("year3").style.display="none";
    }
    
    if (whichone == 3) {
        document.getElementById("year1").style.display="none";
        document.getElementById("year2").style.display="none";
        document.getElementById("year3").style.display="inline";
    }


    document.getElementById("tab_"+whichone).className="eachtabselected";
    if (whichone != activetab) {
        document.getElementById("tab_"+activetab).className="eachtab";
    }

    activetab = whichone;

}


function init() {

}