var aufloesung = screen.width;

if (aufloesung >= 1280)
{
{document.write('<link rel="stylesheet" type="text/css" href="layout_large.css" media="all">');}
{document.write('<link rel="stylesheet" type="text/css" href="layout_printer.css" media="print">');}
}
else if (aufloesung >= 1024)
{
{document.write('<link rel="stylesheet" type="text/css" href="layout_middle.css" media="all">');}
{document.write('<link rel="stylesheet" type="text/css" href="layout_printer.css" media="print">');}
}
else
{
{document.write('<link rel="stylesheet" type="text/css" href="layout_small.css" media="screen">');}
{document.write('<link rel="stylesheet" type="text/css" href="layout_printer.css" media="print">');}
}