function preload()
{
	images = new Array(
		  "images/leftnav_btn_toppage_c.gif"
		, "images/leftnav_btn_project_c.gif"
		, "images/leftnav_btn_workshop_c.gif"
		, "images/leftnav_btn_workshop-app_c.gif"
		, "images/leftnav_btn_contest_c.gif"
		, "images/leftnav_btn_contest-app_c.gif"
		, "images/leftnav_btn_event_c.gif"
		, "images/leftnav_btn_mailorder_c.gif"
		, "images/leftnav_btn_link_c.gif"
		, "images/leftnav_btn_bbs_c.gif"
		, "images/leftnav_btn_qa_c.gif"
	);
	for (i = 0; i < images.length; i++) {
		image = new Image;
		image.src = images[i];
	}
}