var randNum2=Math.round((Math.random()*5)),img2,qArray2=new Array(5);

qArray2[0]="<img src='images/cycle/img_02a.jpg' width='200' height='130'>"
qArray2[1]="<img src='images/cycle/img_02b.jpg' width='200' height='130'>"
qArray2[2]="<img src='images/cycle/img_02c.jpg' width='200' height='130'>"
qArray2[3]="<img src='images/cycle/img_02d.jpg' width='200' height='130'>"
qArray2[4]="<img src='images/cycle/img_02e.jpg' width='200' height='130'>"
qArray2[5]="<img src='images/cycle/img_02f.jpg' width='200' height='130'>"

img2=qArray2[randNum2];
document.write(img2);