function showImage(){

var jArray = new Array();
jArray[0] = "<a href='10_campaign_usa11.htm'><IMG src='imgs/img_jpn.jpg' width='570' height='250' border='0'></a>";
jArray[1] = "<a href='10_campaign_usa11.htm'><IMG src='imgs/img_jpn.jpg' width='570' height='250' border='0'></a>";
var n = Math.ceil(Math.random()*jArray.length) -1 ;
//alert("n=" + n ) ;
document.write(jArray[n]);

}

function showImage_e(){

var eArray = new Array();
eArray[0] = "<a href='en_10_campaign_usa11.htm'><IMG src='imgs/img_eng.jpg' width='570' height='250' border='0'></a>";
eArray[1] = "<a href='en_10_campaign_usa11.htm'><IMG src='imgs/img_eng.jpg' width='570' height='250' border='0'></a>";
var n = Math.ceil(Math.random()*eArray.length) -1 ;
//alert("n=" + n ) ;
document.write(eArray[n]);

}