var wkimg = new Array();
for (var i=0; i < 4 ; i++) {
	wkimg[i] = new Image(90,47);
}
wkimg[0].src = "img/btn_recruit11.png";
wkimg[1].src = "img/btn_recruit12.png";
wkimg[2].src = "img/btn_recruit21.png";
wkimg[3].src = "img/btn_recruit22.png";
	
function swpimg1(num) {
	document.getElementById("recruitNew").src = wkimg[num].src; 
}

function swpimg2(num) {
	document.getElementById("recruitNext").src = wkimg[num].src; 
}