var imgs_pre = new Array( 
root+'index_img/top_tansansen_b.jpg',
root+'index_img/top_facilities_b.jpg',
root+'index_img/top_faq_b.jpg',
root+'index_img/top_link_b.jpg',
root+'shared_img/tansansen_button.gif',
root+'shared_img/facilities_button.gif',
root+'shared_img/faq_button.gif',
root+'shared_img/link_button.gif',
root+'shared_img/outline_button.gif',
root+'shared_img/contact_button.gif');

var imgs_o_pre = new Array( 
root+'index_img/top_tansansen_b_o.jpg',
root+'index_img/top_facilities_b_o.jpg',
root+'index_img/top_faq_b_o.jpg',
root+'index_img/top_link_b_o.jpg',
root+'shared_img/tansansen_button_o.gif',
root+'shared_img/facilities_button_o.gif',
root+'shared_img/faq_button_o.gif',
root+'shared_img/link_button_o.gif',
root+'shared_img/outline_button_o.gif',
root+'shared_img/contact_button_o.gif');


var imgs = new Object(); 
var imgs_o = new Object(); 
var _count = new Array("top_tansansen","top_facilities","top_faq","top_link","tansansen","facilities","faq","link","outline","contact");

for (var i = 0; i < _count.length; i++) {
	if (document.images){
		imgs[_count[i]]= new Image(); imgs[_count[i]].src = imgs_pre[i];
		imgs_o[_count[i]]= new Image(); imgs_o[_count[i]].src = imgs_o_pre[i];
 	}
 }

function swapimg_basic(over){
	document.images[over].src = imgs_o[over].src;
}

function swapimg_rtr_basic(out){
	document.images[out].src = imgs[out].src;
}