var ry = 1;

function random_topimage_left(pre){

ry=Math.floor(Math.random()*9)
if (ry==0)
ry=1
if (ry==9)
ry=8
document.write('<img src="'+pre+'top_images/lvr1_'+ry+'.jpg" width="71" height="65">')
}

function random_topimage_right(pre){

document.write('<img src="'+pre+'top_images/lvr2_'+ry+'.jpg" width="246" height="65">')
}