if (res == 1) {
   document.write("<LINK rel=stylesheet href=\"locaties_css/agnietenberg1.css\" type=\"text/css\">"); }

else if (res == 2) {
   document.write("<LINK rel=stylesheet href=\"locaties_css/agnietenberg2.css\" type=\"text/css\">"); }

else if (res == 3) {
   document.write("<LINK rel=stylesheet href=\"locaties_css/agnietenberg3.css\" type=\"text/css\">"); }

else if (res == 4) {
   document.write("<LINK rel=stylesheet href=\"locaties_css/agnietenberg4.css\" type=\"text/css\">"); }

else if (res == 5) {
   document.write("<LINK rel=stylesheet href=\"locaties_css/agnietenberg5.css\" type=\"text/css\">"); }