if (screen.width == 800){

document.write("<style type='text/css'>");
document.write("<!--");
document.write("TD, B, A, U ,EM {font-size: xx-small;}");
document.write("H2 {font-size: small}");
document.write("*.texto0, *.menu, *.enlace-texto, *.cabecera {font-size: xx-small;}");
document.write("H1 {font-size: medium}");
document.write("-->");
document.write("</style>");

}
if ((screen.width == 1024) || (screen.width == 1152)){

document.write("<style type='text/css'>");
document.write("<!--");
document.write("TD, B, A, U ,EM {font-size: x-small}");
document.write("H2 {font-size: medium}");
document.write("*.texto0, *.menu, *.enlace-texto, *.cabecera {font-size: x-small;}");
document.write("H1 {font-size: large}");
document.write("-->");
document.write("</style>");

} 
if (screen.width == 1280){

document.write("<style type='text/css'>");
document.write("<!--");
document.write("TD, B, A, U, EM {font-size: small}");
document.write("H1,  {font-size: large}");
document.write("*.texto0, *.menu, *.enlace-texto, *.cabecera {font-size: small;}");
document.write("-->");
document.write("</style>");

} else {

document.write("<style type='text/css'>");
document.write("<!--");
document.write("TD, B, A, U ,EM {font-size: x-small}");
document.write("H2 {font-size: medium}");
document.write("*.texto0, *.menu, *.enlace-texto, *.cabecera {font-size: x-small;}");
document.write("H1 {font-size: large}");
document.write("-->");
document.write("</style>");

}