var ry = 1;

function random_topimage_right(pre){

ry=Math.floor(Math.random()*15)
if (ry==0)
ry=1
if (ry==15)
ry=14
document.write('<img src="http://www.vakantie-meerlo.nl/images/top_image'+ry+'.jpg" width="720" height="147">')
}