// JavaScript Document

function invocarBerta(pIdioma) {
    var wWidth = 244;
    var wNavWidthDelta = (!!document.all) ? 8 : 10;
    var wLeftPosition = screen.width - wWidth - wNavWidthDelta;
    var wTopPosition = (!!document.all) ? 110 : 145;
    var wNavHeightDelta = (!!document.all) ? 30 : 0;
    var wHeight;
 
    if( screen.height <= 768 ){
        wHeight = Math.round( (screen.height - wTopPosition - wNavHeightDelta)  * 0.95 );
    }else{
      wHeight = Math.round( (screen.height - wTopPosition - wNavHeightDelta) * 0.85 );
    }
 
    if (pIdioma == undefined || pIdioma == null) {
        pIdioma = 'ca';
    }
 
    var wURL = "http://exp1.minervaasistentesvirtuales.com/MinervaCanalWeb/MinervaFlotantServlet?clauCanal=nJ8849IRlcc.&codIdioma="+pIdioma;
    window.open(wURL,'Berta','width=' + wWidth + ',height='+wHeight+',left='+wLeftPosition+',top='+wTopPosition);
}
function setActiveStyleSheet(title) {
  var i, a, main;
  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
    if(a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title")) {
      a.disabled = true;
      if(a.getAttribute("title") == title) a.disabled = false;
    }
  }
}

function getActiveStyleSheet() {
  var i, a;
  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
    if(a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title") && !a.disabled) return a.getAttribute("title");
  }
  return null;
}

function getPreferredStyleSheet() {
  var i, a;
  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
    if(a.getAttribute("rel").indexOf("style") != -1
       && a.getAttribute("rel").indexOf("alt") == -1
       && a.getAttribute("title")
       ) return a.getAttribute("title");
  }
  return null;
}

function createCookie(name,value,days) {
  if (days) {
    var date = new Date();
    date.setTime(date.getTime()+(days*24*60*60*1000));
    var expires = "; expires="+date.toGMTString();
  }
  else expires = "";
  document.cookie = name+"="+value+expires+"; path=/";
}

function readCookie(name) {
  var nameEQ = name + "=";
  var ca = document.cookie.split(';');
  for(var i=0;i < ca.length;i++) {
    var c = ca[i];
    while (c.charAt(0)==' ') c = c.substring(1,c.length);
    if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
  }
  return null;
}


window.onunload = function(e) {
  var title = getActiveStyleSheet();
  createCookie("style", title, 365);
}

var cookie = readCookie("style");
var title = cookie ? cookie : getPreferredStyleSheet();
setActiveStyleSheet(title);