//DETECCION DEL BROWSER
var nn4 = document.layers ? true:false;
var d, dom, ie, ie4, ie5x, moz, mac, win, lin, old, ie5mac, ie5xwin, op;

d = document;
n = navigator;
na = n.appVersion;
nua = n.userAgent;
win = ( na.indexOf( 'Win' ) != -1 );
mac = ( na.indexOf( 'Mac' ) != -1 );
lin = ( na.indexOf( 'Linux' ) != -1 );

if ( !d.layers ){
dom = ( d.getElementById );
op = ( nua.indexOf( 'Opera' ) != -1 );
konq = ( nua.indexOf( 'Konqueror' ) != -1 );
saf = ( nua.indexOf( 'Safari' ) != -1 );
moz = ( nua.indexOf( 'Gecko' ) != -1 );
ie = ( d.all && !op );
ie4 = ( ie && !dom );
ie5x = ( d.all && dom );
ie5mac = ( mac && ie5x );
ie5xwin = ( win && ie5x );
}

// ADMINISTRADOR DE TAMAŅO DE FUENTE 
function FindObj(n, d) { //v4.01
var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=FindObj(n,d.layers[i].document);
if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function ChangeProp(objName,x,theProp,theValue) { //v6.0
var obj = FindObj(objName);
if (obj && (theProp.indexOf("style.")==-1 || obj.style)){
if (theValue == true || theValue == false)
eval("obj."+theProp+"="+theValue);
else eval("obj."+theProp+"='"+theValue+"'");
}
}

function LoadActualFontSize() {
tempArray = document.cookie.split(";");
for (tA = 0; tA < tempArray.length; tA++){
if (tempArray[tA].indexOf('fontSize') > -1){
fontSizeValue = tempArray[tA].split("=")
ACTUAL_FONTSIZE = parseInt(fontSizeValue[1]);
}
}
}

function SaveActualFontSize() {
var expire = new Date ();
expire.setTime (expire.getTime() + (6000 * 24 * 3600000));
expire = expire.toGMTString();
document.cookie="fontSize="+ACTUAL_FONTSIZE+"; path=/; expires="+expire;
}

function Agrandar() {
ACTUAL_FONTSIZE = ACTUAL_FONTSIZE+1;
if (ACTUAL_FONTSIZE > LARGEST_FONTSIZE) { ACTUAL_FONTSIZE = LARGEST_FONTSIZE }
ChangeProp('texto','','style.fontSize',ACTUAL_FONTSIZE,'SPAN');
SaveActualFontSize();
//footer();
}

function Achicar() {
ACTUAL_FONTSIZE = ACTUAL_FONTSIZE-1
if (ACTUAL_FONTSIZE < SMALLEST_FONTSIZE) { ACTUAL_FONTSIZE = SMALLEST_FONTSIZE }
ChangeProp('texto','','style.fontSize',ACTUAL_FONTSIZE,'SPAN');
SaveActualFontSize();
//footer();
}

ACTUAL_FONTSIZE = 13;
SMALLEST_FONTSIZE = 12;
LARGEST_FONTSIZE = 20;

// FONT CONTRAST MANAGEMENT
function LoadActualContrast() {
tempArray = document.cookie.split(";");
for (tA = 0; tA < tempArray.length; tA++){
if (tempArray[tA].indexOf('contrast') > -1){
var ww = document.getElementById('texto');
ww.style.color = tempArray[tA].split("=");
}
}
}

function SaveActualCtrs() {
var expire = new Date ();
expire.setTime (expire.getTime() + (6000 * 24 * 3600000));
expire = expire.toGMTString();
document.cookie="contrast="+fino+"; path=/; expires="+expire;
}

function CMas() {
var fino;
var ww = document.getElementById('texto');
if (ww.style.color == '#333') {
fino = '#000';
ww.style.color = fino;
}
if (ww.style.color == '#7A7A7A' || ww.style.color == '') {
fino = '#333';
ww.style.color = fino;
}
//SaveActualCtrs();
}

function CMenos() {
var fino;
var ww = document.getElementById('texto');
if (ww.style.color == '#333') {
fino = '#7A7A7A';
ww.style.color = fino;
}
if (ww.style.color == '#000') {
fino = '#333';
ww.style.color = fino;
}
//SaveActualCtrs();
}