simg=new Array(6);
simg[0]="haikei/top-haikei-aooni.jpg";
simg[1]="haikei/top-haikei-mac.jpg";
simg[2]="haikei/top-haikei-kurohige.jpg";
simg[3]="haikei/top-haikei-viking.jpg";
simg[4]="haikei/top-haikei-yamapii.jpg";
simg[5]="haikei/top-haikei-gunsou.jpg";
Myimg=Math.floor(6*Math.random());
document.write("<img src='"+simg[Myimg]+"'>");