var img_name = new Array();
img_name[0] = "gnv1_on.gif";
img_name[1] = "gnv2_on.gif";
img_name[2] = "gnv3_on.gif";
img_name[3] = "gnv4_on.gif";
img_name[4] = "gnv5_on.gif";
img_name[5] = "gnv6_on.gif";
img_name[6] = "gnv7_on.gif";

var img = new Array();
for (var i=0; i < img_name.length ; i++) {
	img[i] = new Image();
	img[i].src = "/cmn/images/headfoot/" + img_name[i];
}

var img_bak = new Object;

function cs_head_mouse(id_name,kind)
{
	var image_src = "";

	if( !document.getElementById(id_name) ) {
		return;
	}

	if( kind == "on" ) {
		img_bak[id_name] = document.getElementById(id_name).src;
		image_src = "/cmn/images/headfoot/" + id_name + "_on.gif";
	} else if( kind == "out" ) {
		image_src = img_bak[id_name];
	} else {
		return;
	}

	document.getElementById(id_name).src = image_src;

	return;
}