// convert all characters to lowercase to simplify testing
var agt=navigator.userAgent.toLowerCase();

// *** BROWSER VERSION ***
// Note: On IE5, these return 4, so use is_ie5up to detect IE5.
var is_major = parseInt(navigator.appVersion);
var is_minor = parseFloat(navigator.appVersion);

// Note: Opera and WebTV spoof Navigator.  We do strict client detection.
// If you want to allow spoofing, take out the tests for opera and webtv.
var is_nav  = ((agt.indexOf('mozilla')!=-1) && (agt.indexOf('spoofer')==-1)
            && (agt.indexOf('compatible') == -1) && (agt.indexOf('opera')==-1)
            && (agt.indexOf('webtv')==-1) && (agt.indexOf('hotjava')==-1));
var is_nav2 = (is_nav && (is_major == 2));
var is_nav3 = (is_nav && (is_major == 3));
var is_nav4 = (is_nav && (is_major == 4));
var is_nav4up = (is_nav && (is_major >= 4));
var is_navonly      = (is_nav && ((agt.indexOf(";nav") != -1) ||
                                  (agt.indexOf("; nav") != -1)) );
var is_nav6 = (is_nav && (is_major == 5));
var is_nav6up = (is_nav && (is_major >= 5));
var is_gecko = (agt.indexOf('gecko') != -1);

var is_ie     = ((agt.indexOf("msie") != -1) && (agt.indexOf("opera") == -1));
var is_ie3    = (is_ie && (is_major < 4));
var is_ie4    = (is_ie && (is_major == 4) && (agt.indexOf("msie 4")!=-1) );
var is_ie4up  = (is_ie && (is_major >= 4));
var is_ie5    = (is_ie && (is_major == 4) && (agt.indexOf("msie 5.0")!=-1) );
var is_ie5_5  = (is_ie && (is_major == 4) && (agt.indexOf("msie 5.5") !=-1));
var is_ie5up  = (is_ie && !is_ie3 && !is_ie4);
var is_ie5_5up =(is_ie && !is_ie3 && !is_ie4 && !is_ie5);
var is_ie6    = (is_ie && (is_major == 4) && (agt.indexOf("msie 6.")!=-1) );
var is_ie6up  = (is_ie && !is_ie3 && !is_ie4 && !is_ie5 && !is_ie5_5);

var is_aol   = (agt.indexOf("aol") != -1);
var is_aol3  = (is_aol && is_ie3);
var is_aol4  = (is_aol && is_ie4);
var is_aol5  = (agt.indexOf("aol 5") != -1);
var is_aol6  = (agt.indexOf("aol 6") != -1);

var is_opera = (agt.indexOf("opera") != -1);
var is_opera2 = (agt.indexOf("opera 2") != -1 || agt.indexOf("opera/2") != -1);
var is_opera3 = (agt.indexOf("opera 3") != -1 || agt.indexOf("opera/3") != -1);
var is_opera4 = (agt.indexOf("opera 4") != -1 || agt.indexOf("opera/4") != -1);
var is_opera5 = (agt.indexOf("opera 5") != -1 || agt.indexOf("opera/5") != -1);
var is_opera5up = (is_opera && !is_opera2 && !is_opera3 && !is_opera4);

var is_webtv = (agt.indexOf("webtv") != -1); 

var is_TVNavigator = ((agt.indexOf("navio") != -1) || (agt.indexOf("navio_aoltv") != -1)); 
var is_AOLTV = is_TVNavigator;

var is_hotjava = (agt.indexOf("hotjava") != -1);
var is_hotjava3 = (is_hotjava && (is_major == 3));
var is_hotjava3up = (is_hotjava && (is_major >= 3));

var is_js;
if (is_nav2 || is_ie3) is_js = 1.0;
else if (is_nav3) is_js = 1.1;
else if (is_opera5up) is_js = 1.3;
else if (is_opera) is_js = 1.1;
else if ((is_nav4 && (is_minor <= 4.05)) || is_ie4) is_js = 1.2;
else if ((is_nav4 && (is_minor > 4.05)) || is_ie5) is_js = 1.3;
else if (is_hotjava3up) is_js = 1.4;
else if (is_nav6 || is_gecko) is_js = 1.5;
else if (is_nav6up) is_js = 1.5;
else if (is_ie5up) is_js = 1.3
else is_js = 0.0;

var is_win   = ((agt.indexOf("win")!=-1) || (agt.indexOf("16bit")!=-1) );
var is_win95 = ((agt.indexOf("win95")!=-1) || (agt.indexOf("windows 95")!=-1));
var is_win16 = ((agt.indexOf("win16")!=-1) || 
                (agt.indexOf("16bit")!=-1) || (agt.indexOf("windows 3.1")!=-1) || 
                (agt.indexOf("windows 16-bit")!=-1) );  
var is_win31 = ((agt.indexOf("windows 3.1")!=-1) || (agt.indexOf("win16")!=-1) ||
                (agt.indexOf("windows 16-bit")!=-1));
var is_winme = ((agt.indexOf("win 9x 4.90")!=-1));
var is_win2k = ((agt.indexOf("windows nt 5.0")!=-1));

var is_win98 = ((agt.indexOf("win98")!=-1) || (agt.indexOf("windows 98")!=-1));
var is_winnt = ((agt.indexOf("winnt")!=-1) || (agt.indexOf("windows nt")!=-1));
var is_win32 = (is_win95 || is_winnt || is_win98 || 
              ((is_major >= 4) && (navigator.platform == "Win32")) ||
               (agt.indexOf("win32")!=-1) || (agt.indexOf("32bit")!=-1));
var is_os2   = ((agt.indexOf("os/2")!=-1) || 
               (navigator.appVersion.indexOf("OS/2")!=-1) ||   
               (agt.indexOf("ibm-webexplorer")!=-1));
var is_mac    = (agt.indexOf("mac")!=-1);
if (is_mac && is_ie5up) is_js = 1.4;
var is_mac68k = (is_mac && ((agt.indexOf("68k")!=-1) || 
                            (agt.indexOf("68000")!=-1)));
var is_macppc = (is_mac && ((agt.indexOf("ppc")!=-1) || 
                            (agt.indexOf("powerpc")!=-1)));

var is_sun   = (agt.indexOf("sunos")!=-1);
var is_sun4  = (agt.indexOf("sunos 4")!=-1);
var is_sun5  = (agt.indexOf("sunos 5")!=-1);
var is_suni86= (is_sun && (agt.indexOf("i86")!=-1));
var is_irix  = (agt.indexOf("irix") !=-1);    // SGI
var is_irix5 = (agt.indexOf("irix 5") !=-1);
var is_irix6 = ((agt.indexOf("irix 6") !=-1) || (agt.indexOf("irix6") !=-1));
var is_hpux  = (agt.indexOf("hp-ux")!=-1);
var is_hpux9 = (is_hpux && (agt.indexOf("09.")!=-1));
var is_hpux10= (is_hpux && (agt.indexOf("10.")!=-1));
var is_aix   = (agt.indexOf("aix") !=-1);      // IBM
var is_aix1  = (agt.indexOf("aix 1") !=-1);    
var is_aix2  = (agt.indexOf("aix 2") !=-1);    
var is_aix3  = (agt.indexOf("aix 3") !=-1);    
var is_aix4  = (agt.indexOf("aix 4") !=-1);    
var is_linux = (agt.indexOf("inux")!=-1);
var is_sco   = (agt.indexOf("sco")!=-1) || (agt.indexOf("unix_sv")!=-1);
var is_unixware = (agt.indexOf("unix_system_v")!=-1); 
var is_mpras    = (agt.indexOf("ncr")!=-1); 
var is_reliant  = (agt.indexOf("reliantunix")!=-1);
var is_dec   = ((agt.indexOf("dec")!=-1) || (agt.indexOf("osf1")!=-1) || 
                (agt.indexOf("dec_alpha")!=-1) || (agt.indexOf("alphaserver")!=-1) || 
                (agt.indexOf("ultrix")!=-1) || (agt.indexOf("alphastation")!=-1)); 
var is_sinix = (agt.indexOf("sinix")!=-1);
var is_freebsd = (agt.indexOf("freebsd")!=-1);
var is_bsd = (agt.indexOf("bsd")!=-1);
var is_unix  = ((agt.indexOf("x11")!=-1) || is_sun || is_irix || is_hpux || 
                 is_sco ||is_unixware || is_mpras || is_reliant || 
                 is_dec || is_sinix || is_aix || is_linux || is_bsd || is_freebsd);
var is_vms   = ((agt.indexOf("vax")!=-1) || (agt.indexOf("openvms")!=-1));

function emailCheck (emailStr) {
  var emailPat = /^(.+)@(.+)$/
  var specialChars = "\\(\\)<>@,;:\\\\\\\"\\.\\[\\]"
  var validChars = "\[^\\s" + specialChars + "\]"
  var quotedUser = "(\"[^\"]*\")"
  var ipDomainPat = /^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/
  var atom = validChars + '+'
  var word = "(" + atom + "|" + quotedUser + ")"
  var userPat = new RegExp("^" + word + "(\\." + word + ")*$")
  var domainPat = new RegExp("^" + atom + "(\\." + atom +")*$")

  var matchArray = emailStr.match(emailPat)
  if(matchArray == null) {
    alert('Eroare: adresa utilizatorului este incorecta');
    return false;
  }
  var user = matchArray[1]
  var domain = matchArray[2]

  if(user.match(userPat) == null) {
    alert('Eroare email: numele utilizatorului este incorect');
    return false;
  }
  var IPArray = domain.match(ipDomainPat)
  if(IPArray != null) {
    for(var i=1; i<=4; i++) {
      if(IPArray[i] > 255) {
        alert('Eroare email: adresa utilizatorului este incorecta');
        return false;
      }
    }
    return true
  }
  var domainArray = domain.match(domainPat)
  if(domainArray == null) {
    alert('Eroare email: adresa utilizatorului este incorecta');
    return false;
  }

  var atomPat = new RegExp(atom, "g")
  var domArr=domain.match(atomPat)
  var len = domArr.length
  if(domArr[domArr.length-1].length < 2 || domArr[domArr.length-1].length > 5) {
    alert('Eroare email: adresa utilizatorului este incorecta');
    return false;
  }

  if(len < 2) {
   alert('Eroare email: adresa utilizatorului este incorecta');
   return false;
  }

  return true;
}

function verifyMAC(MACvalue) {
  var validChars = "([abcdef0123456789])";
  var validElem1 = validChars + "\{2}";
  var validElem2 = validChars + "\{4}";
  var validElem3 = validChars + "\{12}";
  var validPattern1 = new RegExp("^(" + validElem1 + "):(" + validElem1 + "):(" + validElem1 + "):(" + validElem1 + "):(" + validElem1 + "):(" + validElem1 + ")$");
  var validPattern2 = new RegExp("^(" + validElem2 + ")\.(" + validElem2 + ")\.(" + validElem2 + ")$");
  var validPattern3 = new RegExp("^(" + validElem3 + ")$");
  MACvalue = MACvalue.toLowerCase();
  var result = false;
                                                                                                                             
  var macArray = MACvalue.match(validPattern1);
  if(macArray == null) macArray = MACvalue.match(validPattern2);
  if(macArray == null) macArray = MACvalue.match(validPattern3);
                                                                                                                             
  if(MACvalue == "00:00:00:00:00:00" || MACvalue == "0000.0000.0000") window.status = "Eroare: aceasta adresa hardware nu poti folosi aici!";
  else if(MACvalue == "ff:ff:ff:ff:ff:ff" || MACvalue == "ffff.ffff.ffff") window.status = "Eroare: aceasta adresa hardware nu poti folosi aici!";
  else if(macArray == null) window.status = "Eroare: " + MACvalue + " nu este o adresa valida!";
  else result = true;
  return result;
}

function random_number(){
//
//  functia genereaza un numar aleator util pentru indentificatori unici
//
  return Math.round(Math.random()*99999);
}

function trim(string_for_trim) {
//
//  functia sterge spatiile din fata si din urma unui string
//  primeste stringul pe care se face trim
//  returneaza stringul rezultat
//
  while (string_for_trim.substring(0,1) == ' ') {
    string_for_trim = string_for_trim.substring(1,string_for_trim.length);
  }
  while (string_for_trim.substring(string_for_trim.length-1,string_for_trim.length) == ' ') {
    string_for_trim = string_for_trim.substring(0,string_for_trim.length-1);
  }
  return string_for_trim;
}

function xml2dom(response) {
//
//  functia creaza un obiect dom dintr-un XML
//  primeste string-ul in format XML
//  returneaza obiectul DOM in functie de browser
//
  if (document.implementation.createDocument){  //pentru gecko
    var objDOMParser = new DOMParser();
    var dom = objDOMParser.parseFromString(response, "text/xml");
  } else if (window.ActiveXObject){ //  pentru IE
    dom = new ActiveXObject("Microsoft.XMLDOM")
    dom.async="false";
    dom.loadXML(response);
  }
  return dom;
}

function check_string(checkStr) {
//
//  functia verifica daca un string este format numai din simboluri numerice 0 - 9
//  primeste ca parametru stringul de verificat
//  returneaza true daca stringul de verificat contine numai simboluri numerice, altfel returneaza false
//  TODO poate fi extinsa pentru orice fel de verificare a unui string (gol, numeric, caracter, numeric si caracter, etc.)
//
  var checkOK = "0123456789";
  var allValid = true;
  for (i = 0;  i < checkStr.length;  i++) {
    ch = checkStr.charAt(i);
    for (j = 0;  j < checkOK.length;  j++) {
      if (ch == checkOK.charAt(j)) {
        break;
      }
    }
    if (j == checkOK.length) {
      allValid = false;
      break;
    }
  }

  if (!allValid) {
    return false;
  } else {
    return true;
  }
}

function dom2select_box (dom, element) {
//
//  functia populeaza un selectbox dat cu valorile din dom
//  primeste elementul dom si elementul HTML selectbox ce urmeaza a fi populat cu optiuni
//
  element.options.length = 0;
  for(i = 0; i < dom.getElementsByTagName("e").length; i++) {
    var opt = document.createElement('option');
    opt.value= dom.getElementsByTagName("e")[i].getAttribute("v");
    opt.text = dom.getElementsByTagName("e")[i].firstChild.data;
    if(dom.getElementsByTagName("e")[i].getAttribute("s") !== null) {
      opt.selected = true;
    }
    try {
      element.add(opt, null);
    }
    catch(ex) {
      element.add(opt); // IE only
    }
  }
}

function reset_selectbox(element) {
//
//  functia goleste un select box
//  primeste elementul HTML ce urmeaza a fi golit
//
  element.options.length = 0;
}

function copy_select_box (element_src, element_dst) {
//
//  functia copie toate valorile dintr-un select box intr-altul
//  primeste selectbox-ul sursa si destinatie
//
  element_dst.options.length = 0;
  for(i = 0; i < element_src.options.length; i++) {
    var opt = document.createElement('option');
    opt.value = element_src.options[i].value;
    opt.text = element_src.options[i].text;
    if(element_src.options[i].selected == true) {
      opt.selected = true;
    }
    try {
      element_dst.add(opt, null);
    }
    catch(ex) {
      element_dst.add(opt); // IE only
    }
  }
}

function add_select_item(src_form_element, dst_form_element) {
//
//  functia copie valorile selectate dintr-un select box intr-altul
//  primeste selectbox-ul sursa si destinatie
//
  found_dup = false;
  for (i = 0; i < src_form_element.options.length; i++) {
    if (src_form_element.options[i].selected) {
      for (n = 0; n < dst_form_element.options.length; n++) {
        if ( src_form_element.options[i].value == dst_form_element.options[n].value) {
          found_dup=true;
        }
      }
      
      if (!found_dup) {
        src_id = src_form_element.options[i].value;
        src_text = src_form_element.options[i].text;
        
        options_length = dst_form_element.options.length;
        dst_form_element.options[options_length] = new Option(src_text, src_id);
        dst_form_element.options[options_length].selected = true;
      }
    }
    
    found_dup = false;
  }
//  document.getElementById(dst_form_element.id + '_total').innerHTML = dst_form_element.options.length;
}

function add_item2selectbox(dst_form_element, element_value, element_text) {
//
//  functia adauga un element la un selectbox
//  primeste elementul HTML selectbox, valoarea si textul
//
  found_dup = false;
  for (n = 0; n < dst_form_element.options.length; n++) {
    if ( element_value == dst_form_element.options[n].value) {
      found_dup=true;
    }
  }

  if (!found_dup) {
    options_length = dst_form_element.options.length;
    dst_form_element.options[options_length] = new Option(element_text, element_value);
    dst_form_element.options[options_length].selected = true;
  }
}

function delete_from_select_box(element, list) {
  for (var i = 0; i < element.options.length; i++) {
    for(var j = 0; j < list.length; j++) {
      if(list[j] != 0) {
        if(list[j] == element.options[i].value) {
          element.options[i] = null;
        }
      }
    }
  }
}

function del_select_item(element) {
//
//  functia sterge elementul/ele selectat/e dintr-un selectbox
//  primeste elementul HTML selectbox
//
  for (i = 0; i < element.options.length; i++) {
    if (element.options[i].selected) {
      element.options[i] = null;
      i = i - 1;
    }
  }
}

function select_item(element, val) {
//
//  functia selecteaza elementul caruia ii corespunde valoarea cu cea primita dintr-un selectbox
//  primeste elementul HTML selectbox si valoarea
//
  for (i = 0; i < element.options.length; i++) {
    if (element.options[i].value == val) {
      element.options[i].selected = true;
    }
  }
}

function check_pattern(checkStr, regexp) {
//
//  functia verifica daca un string contine expresia regulata data
//  primeste ca parametru stringul de verificat si expresia regulata
//  returneaza true sau false
  
  var validPattern = new RegExp(regexp);
  var result = false;
                                                                                                                   
  var str = checkStr.match(validPattern);
  if(str != null) result = true;
  return result;
}