function swapImage(target, maxnum)
{
	var id;
	var obj;
	var i = 0;
	while(i < maxnum)
	{
		id  = 'id_newsph_' + i;
		obj = document.getElementById(id);
		obj.style.display = 'none';
		
		id  = 'id_newstxt_' + i;
		obj = document.getElementById(id);
		obj.style.display = 'none';
		
		id   = 'p_newslist_' + i;
		obj = document.getElementById(id);
		obj.className = '';
		
		i++;		
	}
	id  = 'id_newsph_' + target;
	obj = document.getElementById(id);
	obj.style.display = '';

	id  = 'id_newstxt_' + target;
	obj = document.getElementById(id);
	obj.style.display = '';

	id   = 'p_newslist_' + target;
	obj = document.getElementById(id);
	obj.className = 'nownews';

}