var imgs = new Array ( "images/g1_rp_ebook_cover_ss.png", "images/sudoku_cover_ss.png" );
var img_num = 0;
var pause = 3000;
var current_img = new Image();
current_img.src = imgs[img_num];
function start_show() 
{
setInterval("slideshow()", pause);
}
function slideshow() 
{
img_num++;
if (img_num == imgs.length) 
{
img_num = 0;
}
current_img.src = imgs[img_num];
document["slide_img"].src = current_img.src;
}