displayState = new Array(2010);

function expandContract(year) {

    if (displayState[year] || displayState[year] == 1) {
	displayShort = 'block';
	displayLong = 'none';
      } else {
	displayShort = 'none';
	displayLong = 'block';
    }
    ids = 'yearShort' + year;
    idl = 'yearLong' + year;
    idc = 'yearCollapse' + year;
    ide = 'yearExpand' + year;
    document.getElementById(ids).style.display = displayShort;
    document.getElementById(idl).style.display = displayLong;
    document.getElementById(ide).style.display = displayShort;
    document.getElementById(idc).style.display = displayLong;
    displayState[year] = (displayShort == 'block') ? 0 : 1;
    return false;
}