you can use the above sccript to make a backround image appear static like a watermark on your page, just change 'watermark' to the location of your image.Code:<script>
//path to image file
var watermark = 'pix/back.jpg';
//I.E or NS6
if (document.all||document.getElementById)
document.body.style.background="url(watermark) white center no-repeat fixed"
</script>
You can make the image faded with your graphics software, or post it here and I'll oblige(thats if you don't know how) :)
