// JavaScript Document

var nVer = navigator.appVersion;
var nAgt = navigator.userAgent;
var browserName  = navigator.appName;
var fullVersion  = ''+parseFloat(navigator.appVersion); 
var majorVersion = parseInt(navigator.appVersion,10);
var nameOffset,verOffset,ix;

// In MSIE, the true version is after "MSIE" in userAgent
if ((verOffset=nAgt.indexOf("MSIE"))!=-1) {
 browserName = "Microsoft Internet Explorer";
 fullVersion = nAgt.substring(verOffset+5);
}
// In Opera, the true version is after "Opera" 
else if ((verOffset=nAgt.indexOf("Opera"))!=-1) {
 browserName = "Opera";
 fullVersion = nAgt.substring(verOffset+6);
}
// In Chrome, the true version is after "Chrome" 
else if ((verOffset=nAgt.indexOf("Chrome"))!=-1) {
 browserName = "Chrome";
 fullVersion = nAgt.substring(verOffset+7);
}
// In Safari, the true version is after "Safari" 
else if ((verOffset=nAgt.indexOf("Safari"))!=-1) {
 browserName = "Safari";
 fullVersion = nAgt.substring(verOffset+7);
}
// In Firefox, the true version is after "Firefox" 
else if ((verOffset=nAgt.indexOf("Firefox"))!=-1) {
 browserName = "Firefox";
 fullVersion = nAgt.substring(verOffset+8);
}
// In most other browsers, "name/version" is at the end of userAgent 
else if ( (nameOffset=nAgt.lastIndexOf(' ')+1) < (verOffset=nAgt.lastIndexOf('/')) ) 
{
 browserName = nAgt.substring(nameOffset,verOffset);
 fullVersion = nAgt.substring(verOffset+1);
 if (browserName.toLowerCase()==browserName.toUpperCase()) {
  browserName = navigator.appName;
 }
}
// trim the fullVersion string at semicolon/space if present
if ((ix=fullVersion.indexOf(";"))!=-1) fullVersion=fullVersion.substring(0,ix);
if ((ix=fullVersion.indexOf(" "))!=-1) fullVersion=fullVersion.substring(0,ix);

majorVersion = parseInt(''+fullVersion,10);
if (isNaN(majorVersion)) {
 fullVersion  = ''+parseFloat(navigator.appVersion); 
 majorVersion = parseInt(navigator.appVersion,10);
}

if (browserName == "Firefox")
document.write("<link rel='stylesheet' type='text/css' media='all' href='/css/estilos.css'>");
else
{
    if (browserName == "Microsoft Internet Explorer"){
       if (fullVersion == 6){
          document.write("<LINK REL='stylesheet' HREF='/css/estilos-ie-6old.css' TYPE='text/css'>");
       }else if (fullVersion == 7){
          document.write("<LINK REL='stylesheet' HREF='/css/estilos-ie-6.css' TYPE='text/css'>");
       }
		else{
          document.write("<LINK REL='stylesheet' HREF='/css/estilos.css' TYPE='text/css'>");
       }       
 	}
}
if (browserName == "Safari")
document.write("<link rel='stylesheet' type='text/css' media='all' href='/css/estilos.css'>");

if (browserName == "Opera")
document.write("<link rel='stylesheet' type='text/css' media='all' href='/css/estilos.css'>");

if (browserName == "Chrome")
document.write("<link rel='stylesheet' type='text/css' media='all' href='/css/estilos.css'>");