var root = "http://www.will-way.biz/businessmethod/";

var img11 = new Image(500,43);
var img12 = new Image(500,43);

img11.src = root + "img/moushikomi1.png";
img12.src = root + "img/moushikomi2.png";

function c11(idn){
	 var i = document.getElementById(idn);
	 i.src = img11.src
}
function c12(idn){
	 var i = document.getElementById(idn);
	 i.src = img12.src
}