//Script para comprobar rutas de ficheros físicos.
function file_exists (url) {
    var req = this.window.ActiveXObject ? new ActiveXObject("Microsoft.XMLHTTP") : new XMLHttpRequest();
    if (!req) {throw new Error('XMLHttpRequest not supported');}
    req.open('HEAD', url, false);
    req.send(null);
    if (req.status == 200) {
       
        return true;
    }
  
    return false;
}

//Especificamos a jQuery los navegadores (Útil para diferenciar Safari de Chrome).
var userAgent = navigator.userAgent.toLowerCase();
jQuery.browser = {
	version: (userAgent.match( /.+(?:rv|it|ra|ie|me)[\/: ]([\d.]+)/ ) || [])[1],
	chrome: /chrome/.test( userAgent ),
	safari: /webkit/.test( userAgent ) && !/chrome/.test( userAgent ),
	opera: /opera/.test( userAgent ),
	msie: /msie/.test( userAgent ) && !/opera/.test( userAgent ),
	mozilla: /mozilla/.test( userAgent ) && !/(compatible|webkit)/.test( userAgent )
};

//Ejecutamos las condiciones si el fichero existe o no.
//jQuery.each(jQuery.browser, function(i, val) {
if (jQuery.browser.msie==true && jQuery.browser.version.substr(0, 3) == "8.0") {
   
        document.write("<link rel='stylesheet' type='text/css' href='css/repli_style_ie8.css'>");
    }
    else {
        if (jQuery.browser.msie == true && jQuery.browser.version.substr(0, 3) == "7.0") {
            if (file_exists("css/repli_style_ie7.css")){
                document.write("<link rel='stylesheet' type='text/css' href='css/repli_style_ie7.css'>");}
        }
        else {
            if (jQuery.browser.msie == true && jQuery.browser.version.substr(0, 3) == "6.0") {
               
                document.write("<link rel='stylesheet' type='text/css' href='css/repli_style_ie6.css'>");
            }
            else {
                document.write("<link rel='stylesheet' type='text/css' href='css/repli_style2.css'>");
               
            }
        }
    }
    
    //    if (file_exists("css/browsers/mozilla.css")) {
    //        if (i == "mozilla" && jQuery.browser.version.substr(0, 3) == "1.9") {
    //            document.write("<link rel='stylesheet' type='text/css' href='css/repli_style_moz.css'>");
    //        }
    //    }
    //	if (file_exists("css/browsers/opera.css")){
    //		if(i=="opera" && jQuery.browser.version.substr(0,3)=="9.6"){
    //		    document.write("<link rel='stylesheet' type='text/css' href='css/repli_style_ie8.css'>");
    //		}
    //	}
    //	if (file_exists("css/browsers/safari.css")){
    //		if(i=="safari" && jQuery.browser.version.substr(0,3)=="528"){
    //			document.write("<link rel='stylesheet' type='text/css' href='css/browsers/safari.css'>");
    //		}
    //	}
    //	if (file_exists("css/browsers/chrome.css")){
    //		if(i=="chrome" && jQuery.browser.version.substr(0,3)=="2.0"){
    //			document.write("<link rel='stylesheet' type='text/css' href='css/browsers/chrome.css'>");
    //		}
    //	}
//});