<!-- // Š Iddea Soluciones Internet S.L. 1.998 webmaster@iddea.es César Sánchez Novo

programa = navigator.userAgent

if (programa.indexOf("MSIE/2") != -1) navegador = 1;
  else if (programa.indexOf("MSIE/3") != -1) navegador = 1;
  else if (programa.indexOf("MSIE/4") != -1) navegador = 3;
  else if (programa.indexOf("MSIE/5") != -1) navegador = 3;
  else if (programa.indexOf("Mozilla/2") != -1) navegador = 2;
  else if (programa.indexOf("Mozilla/3") != -1) navegador = 2;
  else if (programa.indexOf("Mozilla/4") != -1) navegador = 3;
  else navegador = 0;

if (navegador == 3) {

if (screen.width + "x" +screen.height == "800x600"){
	document.write(" ")}

if (screen.width + "x" +screen.height == "640x480"){
       alert("Your monitor is a 640x480 pixels resolution. Recommended 800x600 pixels resolution.")}

if (screen.width + "x" +screen.height == "1024x768"){
        document.write(" ")
}
}
//-->