if (res == 1) {
   document.write("<LINK rel=stylesheet href=\"klanten_css/unilever1b.css\" type=\"text/css\">"); }
else if (res == 2) {
   document.write("<LINK rel=stylesheet href=\"klanten_css/unilever2b.css\" type=\"text/css\">"); }
else if (res == 3) {
   document.write("<LINK rel=stylesheet href=\"klanten_css/unilever3b.css\" type=\"text/css\">"); }
else if (res == 4) {
   document.write("<LINK rel=stylesheet href=\"klanten_css/unilever4b.css\" type=\"text/css\">"); }
else if (res == 5) {
   document.write("<LINK rel=stylesheet href=\"klanten_css/unilever5b.css\" type=\"text/css\">"); }