var img1 = new Image();
var img2 = new Image();
var img3 = new Image();
var img4 = new Image();
var img5 = new Image();

img1.src = '/images/m1m.jpg';
img2.src = '/images/m2m.jpg';
img3.src = '/images/m3m.jpg';
img4.src = '/images/m4m.jpg';
img5.src = '/images/m5m.jpg';