crr_img = 0;
function layer_visible(lyr) {
	document.getElementById(lyr).style.visibility = 'visible';
}
function layer_hidden(lyr) {
	document.getElementById(lyr).style.visibility = 'hidden';
}
function dsp_image(lyr,iimg,fname) {
	document.images[iimg].src = fname;
}
function load_proc() {
	layer_hidden('imgl');
	int_time=setInterval('main_proc()',speed);
}
function main_proc() {
	for (i=0;i< n_cel;i++){
		a=(crr_img + i)%max_img;
		dsp_image('imgl','img'+ (i+1),img_ary[a]);
	}
	layer_visible('imgl');
	if (crr_img < max_img) {
		crr_img=crr_img + 1;
	}
	else {
		crr_img=0;
	}
}
function img_link(num) {
	if (crr_img+num <= max_img) {
		window.location.href = url_ary[crr_img + num- 1];
	} else {
		window.location.href = url_ary[crr_img + num -1 - max_img];
	}
}