var today = new Date()

var expires = new Date();
 
// fix the bug in Navigator 2.0, Macintosh
 
fixDate(expires);
expires.setTime(expires.getTime() + 365 * 24 * 60 * 60 * 1000);

function setCookie(name, value, expires, path, domain, secure) {
 
 var curCookie = name + "=" + escape(value) +
 ((expires) ? "; expires=" + expires.toGMTString() : "") +
 ((path) ? "; path=" + path : "") +
 ((domain) ? "; domain=" + domain : "") +
 ((secure) ? "; secure" : "");
 document.cookie = curCookie;
}

function getCookie(name) {
 var dc = document.cookie;
 var prefix = name + "=";
 var begin = dc.indexOf("; " + prefix);
 if (begin == -1) {
 begin = dc.indexOf(prefix);
 if (begin != 0) return null;
 } else
 begin += 2;
 var end = document.cookie.indexOf(";", begin);
 if (end == -1)
 end = dc.length;
 return unescape(dc.substring(begin + prefix.length, end));
}

function refresca(){

  window.self.location.reload();
}

function hojaestilo(size){
    setCookie("hojaestilo", size, expires,"/");
    if (getCookie("hojaestilo"))
    {
        window.self.location.reload();
        if (bName == "Netscape" && bVer >= 5) {
        //hack a saco x Net 7
         setTimeout("refresca();",500);
        }

    }else{
    
        alert("Tu ordenador debe aceptar cookies para que este cambio sea permanente");
        cadena = new String(window.self.location);
        str = cadena.toString();
        if (str.indexOf("?")==-1){
            window.location=str+"?estilo="+size;
        }else{
            window.location=str.substr(0,str.indexOf("?"))+"?estilo="+size;
        
        }
    }
    return null;

}


function ConsultaEstilos(){

    if (document.images) {
       size_11_Off = new Image(17,16);size_11_Off.src = "imagen/mt11_0.gif";
       size_11_On = new Image(17,16);size_11_On.src = "imagen/mt11_1.gif";
       size_14_Off = new Image(17,16);size_14_Off.src = "imagen/mt14_0.gif";
       size_14_On = new Image(17,16);size_14_On.src = "imagen/mt14_1.gif";

    }
    // acceptan cookies
     setCookie("Existencia", "1", expires,"/");
    
    if (getCookie("Existencia"))
    {
        var hoja = getCookie('hojaestilo');
    
        if (hoja==null || hoja == "" || hoja=="undefined"){
            hoja = "size11";
            setCookie("hojaestilo", hoja, expires, "/");
        }
    
        return hoja;   
    }
    else{
        //assigno 11
        hoja = "size11";
    }
    return hoja;
    
}



function cambiar(imgName,imgObjName) {
if (document.images) {
  document.images[imgName].src = eval(imgObjName + ".src");
}}


function deleteCookie(name, path, domain) {
 
 if (getCookie(name)) {
 document.cookie = name + "=" +
 ((path) ? "; path=" + path : "") +
 ((domain) ? "; domain=" + domain : "") +
 "; expires=Thu, 01-Jan-70 00:00:01 GMT";
 }
 
}


function fixDate(date) {
var base = new Date(0);
var skew = base.getTime();
if (skew > 0)
date.setTime(date.getTime() - skew);
}