var ts = "%D0%B1";
var term = "TERM_1";
var use = "USE_1";
var struct = "STRUCT_1";
var rel = "REL_1";
var cks = "zgate_selected";

if (navigator.userAgent.indexOf('Mozilla') >= 0) {
  s = navigator.userAgent.indexOf('rv:');
  e = navigator.userAgent.indexOf(')');
  rv = navigator.userAgent.substr((s+3),(e-s-3));
}

function showKeyboard() {
  window.open('/rvkl/','','width=355, height=145, status=yes, resizable=1');
  return false;
}

function openDialog() {
  window.open('/JCDialog/JDialog.html','javaDialog','width=320, height=187, status=yes, resizable=1');
  return false;
}

function setCls(cls) {
  document.forms.ZGATE.elements[term].value = cls;
}

function appendCls(cls) {
  document.forms.ZGATE.elements[term].value += cls;
}

function setTerm(val) {
  term = val;
  var n = term.search('_');
  var x = term.substr(n);
  use = 'USE' + x;
  struct = 'STRUCT' + x;
  rel = 'REL' + x;
}

function setForm(x) {
  if (unescape(ts).length == 2 &&
(!(navigator.userAgent.indexOf('Mozilla') >= 0 && rv >= '1.6'))  || navigator.userAgent.indexOf('MSIE') >= 0)
    window.opener.setCls(decode_utf8(unescape(x)));
  else
    window.opener.setCls(x);
  this.close();
}

function showHoldings(f) {
  var i;

  with (f)
    if (elements.SHOW_HOLDINGS.checked) {
      for (i = 0; i < elements.RECSYNTAX.length; i++)
        if (elements.RECSYNTAX.options[i].value == "1.2.840.10003.5.102") {
          elements.RECSYNTAX.selectedIndex = i;
          break;
        }
    } else
      for (i = 0; i < elements.RECSYNTAX.length; i++)
        if (elements.RECSYNTAX.options[i].value != "1.2.840.10003.5.102") {
          elements.RECSYNTAX.selectedIndex = i;
          break;
        }
}

function recordSyntax(f) {
  with (f)
    if (elements.RECSYNTAX.options[elements.RECSYNTAX.selectedIndex].value == "1.2.840.10003.5.102")
      elements.SHOW_HOLDINGS.checked = true;
    else
      elements.SHOW_HOLDINGS.checked = false;
}

function showProgress(ref) {
var y = window.screenY + window.outerHeight / 2 - 50;
var x = window.screenX + window.outerWidth / 2 - 100;
var s = 'width=200, height=100, top=' + y + ', left=' + x;
w = window.open(ref, null, s);
}

function showDiagnostics()
{
var i;
var divs = document.getElementsByTagName("div");
var cl = 'class';
if (navigator.userAgent.indexOf('MSIE') >= 0)
  cl = 'className'; 
for (i = 0; i < divs.length; i++ )
  if (divs[i].getAttribute(cl) == 'diag')
    divs[i].style.display = 'block';

var x = document.getElementsByTagName("span");
for (i = 0; i < x.length; i++ )
  if (x[i].getAttribute(cl) == 'show_diag')
    x[i].style.display = 'none';
}

function scan(ref, db, attr, attrset)
{
var i;
var fl = false;

with (document.forms.ZGATE) {
  ref += '?ACTION=SCAN&SESSION_ID=';
  ref += elements.SESSION_ID.value;
  ref += '&DBNAME=';
  if (db == null) {
    if (elements.DBNAME.type == 'select-multiple') {
      for (i = 0; i < elements.DBNAME.length; i++)
        if (elements.DBNAME.options[i].selected) {
          if (fl)
            ref += ',';
          ref += elements.DBNAME.options[i].value;
          fl = true;
        }
    } else
      ref += elements.DBNAME.value;
  } else
    ref += db;
  if (elements.CHAR_SET) {
    ref += '&CHAR_SET=';
    ref += elements.CHAR_SET.value;
  }
  ref += '&LANG=';
  ref += elements.LANG.value;
  if (elements.STEP_SIZE) {
    ref += '&STEP_SIZE=';
    ref += elements.STEP_SIZE.value;
  }
  if (elements.PREF_POS) {
    ref += '&PREF_POS=';
    ref += elements.PREF_POS.value;
  }
  ref += '&MAXRECORDS=';
  ref += elements.MAXRECORDS.value;
  if (elements.RECSYNTAX) {
    ref += '&RECSYNTAX=';
    ref += elements.RECSYNTAX.value;
  }
  if (attrset == null) {
    if (elements.ATTSET) {
      ref += '&ATTSET=';
      ref += elements.ATTSET.value;
    }
  } else {
    ref += '&ATTSET=';
    ref += attrset;
  }
  if (elements.SHOW_HOLDINGS) {
    ref += '&SHOW_HOLDINGS=';
    ref += elements.SHOW_HOLDINGS.value;
  }
  ref += '&' + use + '=';
  if (attr == null)
    ref += elements[use].value;
  else
    ref += attr;
  if (elements[rel]) {
    ref += '&' + rel + '=';
    ref += elements[rel].value;
  }
  if (elements[struct]) {
    ref += '&' + struct + '=';
    ref += elements[struct].value;
  }
  ref += '&' + term + '=';
  if (navigator.appName.indexOf('Netscape') >= 0 &&
!(navigator.userAgent.indexOf('Mozilla') >= 0 && rv >= "1.6"))
    ref += escape(elements[term].value);
  else
    ref += escape(encode_utf8(elements[term].value));
}
window.open(ref, null);
}

function processSelected() {
var i;
var x;
var r;
var s = GetCookie(cks);

if (s == null || s == '')
  return;
var e = document.getElementsByName("sel");
for (i = 0; i < e.length; i++ ) {
  x = '(^|:)' + e[i].id + '(:|$)';
  r = new RegExp(x, 'g');
  if (s.search(r) != -1)
    e[i].checked = true;
  else
    e[i].checked = false;
}
}

function selectRecord(o) {
if (o.checked)
  AppendCookie(cks, o.id);
else
  CutFromCookie(cks, o.id);
}

function AppendCookie(name, value) {
var s = GetCookie(name);
if (s == null || s == '')
  s = value;
else
  s += ':' + value;
SetCookie(name, s, null, '/', null, null);
}

function CutFromCookie(name, value) {
var s = GetCookie(name);
var x = '(^|:)' + value + '(:|$)';
var r1 = new RegExp(x, 'g');
var r2 = new RegExp('^:|:$', 'g');
if (s == null || s == '')
  return;
s = s.replace(r1, ':');
s = s.replace(r2, '');
SetCookie(name, s, null, '/', null, null);
}

function getCookieVal (offset) {
var endstr = document.cookie.indexOf (";", offset);
if (endstr == -1)
  endstr = document.cookie.length;
return unescape(document.cookie.substring(offset, endstr));
}

function GetCookie (name) {
var arg = name + "=";
var alen = arg.length;
var clen = document.cookie.length;
var i = 0;
while (i < clen) {
  var j = i + alen;
  if (document.cookie.substring(i, j) == arg)
    return getCookieVal(j);
  i = document.cookie.indexOf(" ", i) + 1;
  if (i == 0)
    break;
}
return null;
}

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

function decode_utf8(u) {
var p = ""; var i = 0; var c = c1 = c2 = 0;
while(i < u.length) {
  c = u.charCodeAt(i);
  if (c < 128) {
    p += String.fromCharCode(c);
    i++;
  } else if((c > 191) && (c < 224)) {
    c2 = u.charCodeAt(i+1);
    p += String.fromCharCode(((c & 31) << 6) | (c2 & 63));
    i+=2;
  } else {
    c2 = u.charCodeAt(i+1);
    c3 = u.charCodeAt(i+2);
    p += String.fromCharCode(((c & 15) << 12) | ((c2 & 63) << 6) | (c3 & 63));
    i+=3;
  }
}
return p;
}

function encode_utf8(t) {
t = t.replace(/\r\n/g,"\n");
var u = "";
for(var n = 0; n < t.length; n++) {
  var c = t.charCodeAt(n);
  if (c < 128)
    u += String.fromCharCode(c);
  else if((c > 127) && (c < 2048)) {
    u += String.fromCharCode((c >> 6) | 192);
    u += String.fromCharCode((c & 63) | 128);
  } else {
    u += String.fromCharCode((c >> 12) | 224);
    u += String.fromCharCode(((c >> 6) & 63) | 128);
    u += String.fromCharCode((c & 63) | 128);
  }
}
return u;
}

function selectOptions(value) {
var cl = 'class';
if (navigator.userAgent.indexOf('MSIE') >= 0)
  cl = 'className'; 

with (document.forms.ZGATE) {
  if (elements.DBNAME.type == 'select-multiple')
    for (i = 0; i < elements.DBNAME.length; i++) {
      elements.DBNAME.options[i].selected = true;
      if (elements.DBNAME.options[i].getAttribute(cl) < value)
        elements.DBNAME.options[i].selected = false;
    }
}
}