//detección del navegador por http://www.quirksmode.org/js/detect.html 

var BrowserDetect = { 
      	init: function () { 
         	 this.browser = this.searchString(this.dataBrowser) || "An unknown browser"; 
         	 this.version = this.searchVersion(navigator.userAgent) 
            	 || this.searchVersion(navigator.appVersion) 
            	 || "an unknown version"; 
         	 this.OS = this.searchString(this.dataOS) || "an unknown OS"; 
      	}, 
   	searchString: function (data) { 
      	 for (var i=0;i<data.length;i++)	{ 
         	 var dataString = data[i].string; 
         	 var dataProp = data[i].prop; 
         	 this.versionSearchString = data[i].versionSearch || data[i].identity; 
         	 if (dataString) { 
            	 if (dataString.indexOf(data[i].subString) != -1) 
               	 return data[i].identity; 
         	 } 
         	 else if (dataProp) 
         	 return data[i].identity; 
      	 } 
   	}, 
   	searchVersion: function (dataString) { 
      	 var index = dataString.indexOf(this.versionSearchString); 
      	 if (index == -1) return; 
      	 return parseFloat(dataString.substring(index+this.versionSearchString.length+1)); 
   	}, 
   	dataBrowser: [ 
      	 { string: navigator.userAgent, 
         	 subString: "OmniWeb", 
         	 versionSearch: "OmniWeb/", 
         	 identity: "OmniWeb" 
      	 }, 
   	 { 
      	 string: navigator.vendor, 
      	 subString: "Apple", 
      	 identity: "Safari" 
   	 }, 
   	 { 
      	 prop: window.opera, 
      	 identity: "Opera" 
   	 }, 
   	 { 
      	 string: navigator.vendor, 
      	 subString: "iCab", 
      	 identity: "iCab" 
   	 }, 
   	 { 
      	 string: navigator.vendor, 
      	 subString: "KDE", 
      	 identity: "Konqueror" 
   	 }, 
   	 { 
      	 string: navigator.userAgent, 
      	 subString: "Firefox", 
      	 identity: "Firefox" 
   	 }, 
   	 { 
      	 string: navigator.vendor, 
      	 subString: "Camino", 
      	 identity: "Camino" 
   	 }, 
   	 {	 // for newer Netscapes (6+) 
      	 string: navigator.userAgent, 
      	 subString: "Netscape", 
      	 identity: "Netscape" 
   	 }, 
   	 { 
      	 string: navigator.userAgent, 
      	 subString: "MSIE", 
      	 identity: "Explorer", 
      	 versionSearch: "MSIE" 
   	 }, 
   	 { 
      	 string: navigator.userAgent, 
      	 subString: "Gecko", 
      	 identity: "Mozilla", 
      	 versionSearch: "rv" 
   	 }, 
   	 { // for older Netscapes (4-) 
      	 string: navigator.userAgent, 
      	 subString: "Mozilla", 
      	 identity: "Netscape", 
      	 versionSearch: "Mozilla" 
   	 } 
   	], 
   	dataOS : [ 
   	 { 
      	 string: navigator.platform, 
      	 subString: "Win", 
      	 identity: "Windows" 
   	 }, 
   	 { 
      	 string: navigator.platform, 
      	 subString: "Mac", 
      	 identity: "Mac" 
   	 }, 
   	 { 
      	 string: navigator.platform, 
      	 subString: "Linux", 
      	 identity: "Linux" 
   	 } 
] 

}; 
BrowserDetect.init();


//script para poner estilos distintos para cada navegador 
if (BrowserDetect.browser == "Firefox") { 
    document.write("<link rel='stylesheet' href='css/ff-style.css' type='text/css' />"); 
} 
else { 		
   	if (BrowserDetect.browser == "Explorer"){ 		
        if (BrowserDetect.version == "7"){
          document.write("<link rel='stylesheet' href='css/ie7-style.css' type='text/css' />"); 
       }else{
          document.write("<link rel='stylesheet' href='css/ie8-style.css' type='text/css' />");
       } 
   	}else{ 
      	 if (BrowserDetect.browser == "Safari"){
         	document.write("<link rel='stylesheet' href='css/safari-style.css' type='text/css'>");
      	 } 
   	} 
}