if(document.images) {
 var imgs = new Array();
 imgs[0] = new Image();  imgs[0].src = "img/top_cp_on.gif";
 imgs[1] = new Image();  imgs[1].src = "img/top_price_on.gif";
 imgs[2] = new Image();  imgs[2].src = "img/top_private_on.gif";
 
  imgs[3] = new Image();  imgs[3].src = "img/top_japantour_on.gif";
 imgs[4] = new Image();  imgs[4].src = "img/top_guamtour_on.gif";
 imgs[5] = new Image();  imgs[5].src = "img/top_gbtour_on.gif";
 
 imgs[6] = new Image();  imgs[6].src = "img/top_shop_on.gif";
 imgs[7] = new Image();  imgs[7].src = "img/top_staff_on.gif";
 imgs[8] = new Image();  imgs[8].src = "img/top_original_on.gif";
 
 imgs[9] = new Image();  imgs[9].src = "img/top_reserve_on.gif";
 imgs[10] = new Image();  imgs[10].src = "img/top_pay_on.gif";
 imgs[11] = new Image();  imgs[11].src = "img/top_ask_on.gif";
 imgs[12] = new Image();  imgs[12].src = "img/top_hotel_on.gif";
 imgs[13] = new Image();  imgs[13].src = "img/top_qa_on.gif";
 
 imgs[14] = new Image();  imgs[14].src = "img/top_padi_on.gif";
 imgs[15] = new Image();  imgs[15].src = "img/top_boat_on.gif";
 imgs[16] = new Image();  imgs[16].src = "img/top_divinggoods_on.gif";
 
 imgs[17] = new Image();  imgs[17].src = "img/top_ishigaki_on.gif";

}

function swImg(iName,str)
{
	document.images[iName].src = str;
}