function makeSelection(year){
	var x;
	var y;
    var i = 0;
	for (x in options)
	if (x == year) 
	{
		document.getElementById('nSel').options.length = 0;
		for (y in options[x]){
		 	document.getElementById('nSel').options[i] = options[x][y];
			if (i == 0) document.getElementById('nSel').options[i].selected = true;
			i++;
		}
	}
}