if (document.images){
sBtn_Description_on = new Image();
sBtn_Description_on.src = "/images/nav/onoff/sBtn_Description_on.gif";
sBtn_Description_off = new Image();
sBtn_Description_off.src = "/images/nav/onoff/sBtn_Description_off.gif";
sBtn_News_on = new Image();
sBtn_News_on.src = "/images/nav/onoff/sBtn_News_on.gif";
sBtn_News_off = new Image();
sBtn_News_off.src = "/images/nav/onoff/sBtn_News_off.gif";
sBtn_MemberLogin_on = new Image();
sBtn_MemberLogin_on.src = "/images/nav/onoff/sBtn_MemberLogin_on.gif";
sBtn_MemberLogin_off = new Image();
sBtn_MemberLogin_off.src = "/images/nav/onoff/sBtn_MemberLogin_off.gif";
sBtn_PhotoGallery_on = new Image();
sBtn_PhotoGallery_on.src = "/images/nav/onoff/sBtn_PhotoGallery_on.gif";
sBtn_PhotoGallery_off = new Image();
sBtn_PhotoGallery_off.src = "/images/nav/onoff/sBtn_PhotoGallery_off.gif";
sBtn_ContactUs_on = new Image();
sBtn_ContactUs_on.src = "/images/nav/onoff/sBtn_ContactUs_on.gif";
sBtn_ContactUs_off = new Image();
sBtn_ContactUs_off.src = "/images/nav/onoff/sBtn_ContactUs_off.gif";
}