function init(){
	var listBlock = document.getElementById('main_td').getElementsByTagName('table');
	for(i=1; i<listBlock.length; i++){
		if(listBlock[i].className == "report_index_tb" || listBlock[i].className == "article_index_tb"){
			listBlock[i].style.display = "none";
		}
	}
	
}


function switch_list(year){
	var listBlock = document.getElementById('main_td').getElementsByTagName('table');
	for(i=0; i<listBlock.length; i++){
		if(listBlock[i].className == "report_index_tb" || listBlock[i].className == "article_index_tb" || listBlock[i].className == "photo_index_tb"){
			listBlock[i].style.display = "none";
		}
	}
	listBlock[year].style.display="block";
}


function photo_init(){
	var listBlock = document.getElementById('main_td').getElementsByTagName('div');
	for(i=1; i<listBlock.length; i++){
		if(listBlock[i].className == "section"){
			listBlock[i].style.display = "none";
		}
	}
}

function photo_switch_list(year){
	var listBlock = document.getElementById('main_td').getElementsByTagName('div');
	for(i=0; i<listBlock.length; i++){
		if(listBlock[i].className == "section"){
			listBlock[i].style.display = "none";
		}
	}
	listBlock[year].style.display="block";
}