// create image object
if (document.images) {

	home_off = new Image(155,22);
	home_off.src = "images/btn_home_off.gif";
	home_on = new Image(155,22);
	home_on.src = "images/btn_home_on.gif";
	weight_off = new Image(195,22);
	weight_off.src = "images/btn_weight_off.gif";
	weight_on = new Image(195,22);
	weight_on.src = "images/btn_weight_on.gif";
	service_off = new Image(187,22);
	service_off.src = "images/btn_service_off.gif";
	service_on = new Image(187,22);
	service_on.src = "images/btn_service_on.gif";
	result_off = new Image(169,22);
	result_off.src = "images/btn_result_off.gif";
	result_on = new Image(169,22);
	result_on.src = "images/btn_result_on.gif";
	promotion_off = new Image(169,22);
	promotion_off.src = "images/btn_promotion_off.gif";
	promotion_on = new Image(169,22);
	promotion_on.src = "images/btn_promotion_on.gif";
	member_off = new Image(149,22);
	member_off.src = "images/btn_member_off.gif";
	member_on = new Image(149,22);
	member_on.src = "images/btn_member_on.gif";

}

// function to change images when mouse over
function ChangeImageOver(img) {
	if (document.images)
		document.images[img].src = eval(img + "_on.src")
}

// function to change images when mouse out
function ChangeImageOut(img) {
	if (document.images)
		document.images[img].src = eval(img + "_off.src")
}

function pop(isURL) {

	var xw = 635;
	var xh = 600;
	window.open(isURL,'popup','width=' + xw + ',height=' + xh + ',toolbar=no,menubar=no,scrollbars=Yes');
	return false;
}

function changeParentURL(url) {
	  if (opener && !opener.closed) {
		    opener.location.href=url;
	  } else {
		    window.open(url);
	  }
		  self.close();
}