var imagenumber = 6 ;
var randomnumber = Math.random() ;
var rand1 = Math.round( (imagenumber-1) * randomnumber) + 1 ;
images = new Array
images[1] = "<img src=\"images/inside1.jpg\" border=0>"
images[2] = "<img src=\"images/inside2.jpg\" border=0>"
images[3] = "<img src=\"images/inside3.jpg\" border=0>"
images[4] = "<img src=\"images/inside4.jpg\" border=0>"
images[5] = "<img src=\"images/inside5.jpg\" border=0>"
images[6] = "<img src=\"images/inside6.jpg\" border=0>"
var image = images[rand1]