function RandomizeImage()
{
var imagesarray = new Array("/images/1.gif", "/images/2.gif", "/images/3.gif", "/images/4.gif", "/images/5.gif", "/images/6.gif")

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