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function ShowCategories(new_id)
{
	var obj = document.getElementById('show_content'+new_id);
	//var ttl = document.getElementById('show_image'+new_id);
	if(obj.style.display == 'none'){
		HiddenAllCategories();
		obj.style.display = '';
	//	ttl.src = '/images/up.gif';
	}else{
		obj.style.display = 'none';
		//ttl.src = '/images/down.gif';
	}
}
function HiddenAllCategories()
{
	var e = document.getElementsByTagName('div');
	var d = document.getElementsByTagName('img');
	for(var i = 0; i < e.length; i++){
		if (e[i].id.substr(0,4) == 'show'){
	e[i].style.display = 'none';
		}
	}
	for(var i = 0; i < d.length; i++)
	{
		if (d[i].id.substr(0,4) == 'show'){
			d[i].src = '/images/down.gif';
		}
	}
}
//½áÊø