function toggleYear(objname){
	if(document.getElementById(objname).style.display == 'none'){

		closeAll();

		openDiv(objname);

	}else{
		
		closeAll();

	}
}

function openDiv(objname){
	document.getElementById(objname).style.display = 'block';
}

function closeDiv(objname){
	document.getElementById(objname).style.display = 'none';
}

function closeAll(){
	var f=2007
	for (f=2007;f<=2017;f++)
	{
		if(document.getElementById("year" + f) != null) {
			closeDiv("year" + f);
		}
		
	}

}