function RandomizeImage()
{
var imagesarray = new Array("home_images/main_image_1.jpg", "home_images/main_image_2.jpg", "home_images/main_image_3.jpg", "home_images/main_image_4.jpg","home_images/main_image_5.jpg", "home_images/main_image_6.jpg", "home_images/main_image_7.jpg", "home_images/main_image_8.jpg", "home_images/main_image_9.jpg", "home_images/main_image_10.jpg", "home_images/main_image_11.jpg")

var randomnumber = Math.round(Math.random()*(imagesarray.length - 1))
document.images.someimage.src = imagesarray[randomnumber]
}