function resolucion() {
var url800x600 = "empresa.htm";
var url1024x768 = "index1024.htm";
var url1152x864 = "index1280x1024.htm";
var nWdt = screen.width;
var nHgh = screen.height;
if ((nWdt == 800) && (nHgh == 600)) window.location.href= url800x600;
else if ((nWdt == 1024) && (nHgh == 768)) window.location.href= url800x600;
else if ((nWdt == 1280) && (nHgh == 720)) window.location.href= url1152x864;
else if ((nWdt == 1280) && (nHgh == 768)) window.location.href= url1152x864;
else if ((nWdt == 1152) && (nHgh == 864)) window.location.href= url1152x864;
else if ((nWdt == 1280) && (nHgh == 960)) window.location.href= url1152x864;
else if ((nWdt == 1280) && (nHgh == 1024)) window.location.href= url1152x864;
else window.location.href= url800x600;
}