if(screen.width <= 480) {
document.write('<style type="text/css"> body {background: url(/themes/johanpalm/images/jp_bg' + Math.floor(Math.random()*4+ 1) + '_s.jpg) #f1f1f1 no-repeat top left;}></style>');}
else {document.write('<style type="text/css"> body {background: url(/themes/johanpalm/images/jp_bg' + Math.floor(Math.random()*4+ 1) + '.jpg) #f1f1f1 no-repeat top left;}></style>');
}