<!--
//ニュースリスト表示切換用
//window.onload = function(){
//	showCategory('20090113');
//};

function hide(elementId) {
	document.getElementById(elementId).style.display = "none";
}
function show(elementId) {
	document.getElementById(elementId).style.display = "block";
}
function showCategory(categoryName){
	var oElement = document.getElementById('primary');
	var oElements = oElement.childNodes;
	var value;
	show('primary');
	if(!categoryName){		//引数が空だったら、一番最初を表示
		oElement = oElements[1];
		value = oElement.id;
		categoryName = value;
	}
	for (i = 0; i < oElements.length; i++) {
		oElement = oElements[i];
		value = oElement.id;
		if(value){
			if(value==categoryName){
				show(value);
			}else{
				hide(value);
			}
		}
	}
}
// -->