function setCache()
{
	var img01 = new Image();
	var img02 = new Image();
	var img03 = new Image();
	var img04 = new Image();
	var img05 = new Image();
	var img06 = new Image();

	img01.src="ns008_a.gif";
	img02.src="ns008_b.gif";
	img03.src="ns008_c.gif";
	img04.src="ns008_d.gif";
	img05.src="ns008_e.gif";
	img06.src="ns008_f.gif";
}