function changestate(thisObj) {


var needState = new Array(1,4,5,10,11,12,13,17,20,21);

        document.getElementById('statelayer1').style.display = 'none';
        document.getElementById('statelayer2').style.display = 'none';
        document.getElementById('statelayer3').style.display = 'none';
        document.getElementById('statelayer4').style.display = 'none';        
        var i=0;
        for (i=0;i<needState.length;i++) {
                if (document.getElementById(thisObj).value == needState[i]) {
                        document.getElementById('statelayer1').style.display = 'block';
                        document.getElementById('statelayer2').style.display = 'block';
                        document.getElementById('statelayer3').style.display = 'block';
                        document.getElementById('statelayer4').style.display = 'block';       
                }
        }

    updateYears(1);
    updateYears(2);
}
window.onload =function() {
updateYears(1);
updateYears(2);

}