if(navigator.appVersion.charAt(0) >= "3") {
 var img = new Array();
 img[0] = new Image();  img[0].src = "http://www.giftlab.jp/diary/img/logo.gif";
 img[1] = new Image();  img[1].src = "http://www.giftlab.jp/diary/img/logo2.gif";
 img[2] = new Image();  img[2].src = "http://www.giftlab.jp/diary/img/left_bg.gif";
 img[3] = new Image();  img[3].src = "http://www.giftlab.jp/diary/img/left_bg2.gif";
    }
	
function _in(nam,num) {
if(navigator.appVersion.charAt(0) >= "3") {
 document.images[nam].src = img[num].src;
   } else { }
	}
	
function _out(nam,num) {
 document.images[nam].src = img[num].src;
	}