var randnum = Math.random();
var imagenum = 5;
var rand = Math.round((imagenum - 1) * randnum) + 1;
imagepic = new Array
imagepic[1] = "images/body/home_rotate01.jpg"
imagepic[2] = "images/body/home_rotate02.jpg"
imagepic[3] = "images/body/home_rotate03.jpg"
imagepic[4] = "images/body/home_rotate04.jpg"
imagepic[5] = "images/body/home_rotate05.jpg"
var rotate_image = imagepic[rand]