function pickimg(){
var imagenumber = 7 ;
var randomnumber = Math.random() ;
var rand1 = Math.round( (imagenumber-1) * randomnumber) + 1;
images = new Array
images[1] = "images/v01.jpg"
images[2] = "images/v02.jpg"
images[3] = "images/v03.jpg"
images[4] = "images/v04.jpg"
images[5] = "images/v05.jpg"
images[6] = "images/v06.jpg"
images[7] = "images/v07.jpg"
var image = images[rand1]
document.randimg.src = image
}