// misc utility functions for javascript

// appends the session id parameter to the popup dest URL
// to work around issues when running inside the Outlook container
function appendSessionIdParam(dest) {
  var retVal = dest;

  if (dest.indexOf('?') > -1) {
    retVal = retVal + "&" + sessIdParamStr;
  } else {
    retVal = retVal + "?" + sessIdParamStr;
  }

  return retVal;
}

// all parameters should be strings, use "yes" or "no" for booleans
// the "name" parameter is optional and should be used to popup multiple windows
function launchWin(dest, width, height, showToolbar, showMenubar, showStatusbar,
                   showScrollbars, showLocation, isResizable, name) {
  if (!name)
    name = "popup"

  popUp = window.open(appendSessionIdParam(dest), name,
                "width=" + width + "," +
                "height=" + height + "," +
                "toolbar=" + showToolbar + "," +
                "menubar=" + showMenubar + "," +
                "status=" + showStatusbar + "," +
                "scrollbars=" + showScrollbars + "," +
                "location=" + showLocation + "," +
                "resizable=" + isResizable);
  popUp.focus();
}

// all parameters should be strings, use "yes" or "no" for booleans
// the "name" parameter is optional and should be used to popup multiple windows
// (just like launchWin but we don't append a session id param -
//  useful for popping up attachments, or other URLs that shouldn't see the &jsessionid=XXXX param)
function launchWinNoSessionId(dest, width, height, showToolbar, showMenubar, showStatusbar,
                   showScrollbars, showLocation, isResizable, name) {
  if (!name)
    name = "popup"

  popUp = window.open(dest, name,
                "width=" + width + "," +
                "height=" + height + "," +
                "toolbar=" + showToolbar + "," +
                "menubar=" + showMenubar + "," +
                "status=" + showStatusbar + "," +
                "scrollbars=" + showScrollbars + "," +
                "location=" + showLocation + "," +
                "resizable=" + isResizable);
  popUp.focus();
}

// launches window positioned in the center of the screen
// all parameters should be strings, use "yes" or "no" for booleans
// the "name" parameter is optional and should be used to popup multiple windows
function launchWinCS(dest, width, height, showToolbar, showMenubar, showStatusbar,
                   showScrollbars, showLocation, isResizable, name) {
  if (!name)
    name = "popup"

  var winL = ((screen.width / 2) - (width / 2));
  var winT = ((screen.height / 2) - (height / 2));
  popUp = window.open(appendSessionIdParam(dest), name,
                "width=" + width + "," +
                "height=" + height + "," +
                "left=" + winL + "," +
                "top=" + winT + "," +
                "toolbar=" + showToolbar + "," +
                "menubar=" + showMenubar + "," +
                "status=" + showStatusbar + "," +
                "scrollbars=" + showScrollbars + "," +
                "location=" + showLocation + "," +
                "resizable=" + isResizable);
  popUp.focus();
}

// launches window positioned in the center of the screen
// all parameters should be strings, use "yes" or "no" for booleans
// the "name" parameter is optional and should be used to popup multiple windows
// (just like launchWinCS but we don't append a session id param -
//  useful for popping up attachments, or other URLs that shouldn't see the &jsessionid=XXXX param)
function launchWinCSNoSessionId(dest, width, height, showToolbar, showMenubar, showStatusbar,
                   showScrollbars, showLocation, isResizable, name) {
  if (!name)
    name = "popup"

  var winL = ((screen.width / 2) - (width / 2));
  var winT = ((screen.height / 2) - (height / 2));
  popUp = window.open(dest, name,
                "width=" + width + "," +
                "height=" + height + "," +
                "left=" + winL + "," +
                "top=" + winT + "," +
                "toolbar=" + showToolbar + "," +
                "menubar=" + showMenubar + "," +
                "status=" + showStatusbar + "," +
                "scrollbars=" + showScrollbars + "," +
                "location=" + showLocation + "," +
                "resizable=" + isResizable);
  popUp.focus();
}

// Help
var strHelpOptions = "location=no";
strHelpOptions += ",toolbar=no";
strHelpOptions += ",menubar=no";
strHelpOptions += ",status=yes";
strHelpOptions += ",scrollbars=yes";
strHelpOptions += ",resizable=yes";
strHelpOptions += ",top=20";
strHelpOptions += ",left=20";
strHelpOptions += ",width=481";
strHelpOptions += ",height=322";

function getHelp(helpCd) {
  var strURL = '/help_popup.jsp?hcd=' + helpCd;
  window.open(appendSessionIdParam(strURL), "helpWindow", strHelpOptions);
}

// handles alerting the user of too many characters in a field
function doLimitLength(field, maxLen, fieldName) {
  if (field.value.length > maxLen) {
    alert('You have exceded ' + maxLen + ' characters for the ' + fieldName + ' field.  Please delete at least ' + (field.value.length - maxLen) + ' character(s).');
    field.focus();
    return false;
  } else {
    return true;
  }
}

// spell check function
function spellCheckField(field) {
  field.value = this.document.applets.appletJSpell.doCheck(field.value);
  this.document.applets.appletJSpell.finish();
}

// spell check function that checks the length after running the spellcheck applet
function spellCheckFieldLimitLength(field, maxLen, fieldName) {
  field.value = this.document.applets.appletJSpell.doCheck(field.value);
  this.document.applets.appletJSpell.finish();
  doLimitLength(field, maxLen, fieldName);
}

// used for date selection forms
function setDays(mf, df, yf, topBlank) {
  var m;
  var y;
  var idxCheck = (topBlank) ? 1 : 0;

  if (!mf || mf.selectedIndex < idxCheck) {
    m = 1;
  } else {
    m = mf.options[mf.selectedIndex].value;
  }

  if (!yf || yf.selectedIndex < idxCheck) {
    y = 2002;
  } else {
    y = yf.options[yf.selectedIndex].value;
  }

  var nd = 31 + idxCheck;
  if (m == 4 || m == 6 || m == 9 || m == 11) {
    nd -= 1;
  } else if (m == 2) {
    if ((y % 400 == 0) || ((y % 4 == 0) && (y % 100 != 0)))
      nd -= 2;
    else
      nd -= 3;
  }

  var prevDaySel = df.selectedIndex;
  while (df.options.length < nd) {
    var nextDay;
    if (topBlank)
      nextDay = df.options.length;
    else
      nextDay = df.options.length + 1;

    df.options[df.options.length] = new Option(nextDay, nextDay);
  }

  if (df.options.length > nd)
    df.options.length = nd;

  if (prevDaySel >= df.options.length)
    df.selectedIndex = df.options.length - 1;
}

// avoid EOLAS patent (according to MS) by writing Spellcheck applet from separate file
function loadSpellChecker(siteURL, learnWordsVal) {
  alert("starting writing");
  this.document.write("<applet codebase=" + siteURL + "/media/bin code=JSpellHTMLInterface.class archive=jspell2n_java11.jar name=appletJSpell width=1 height=1 MAYSCRIPT>");
  this.document.write("<param name=\"ServletURL\" value=\"" + siteURL + "/servlet/JSpellServlet\">");
  this.document.write("<param name=\"LearnWords\" value=\"" + learnWordsVal + "\">");
  this.document.write("</applet>");
  alert("done writing");
}

// returns true if the passed elem is contained in the passed Array
function isElemInArray(elem, array) {
  if (array == null)
    return false;
  for (var x=0; x<array.length; x++) {
    if (array[x] == elem)
      return true;
  }
  return false;
}

// returns a standard dialog (must have included /media/bin/sidialog.js and /media/bin/dhtml_tools.js
function getStandardDialogObject(nm, width, height, title) {
  var result = null;
  try {
    result = new siDialog(nm);
    result.centerScreenOnShow = true;
    result.moveWithPage = true;
    result.draggable = false;
    result.autohide = false;
    result.pos.w = width;
    result.pos.h = height;
    if (!title || title.length == 0)
      result.title = "SMEI Exchange";
    else
      result.title = title;
  } catch (e) {
    alert(e);
    result = null;
  }
  return result;
}

// used to handle closing both pop-up windows and dialog windows
function doWinClose() {
  if (window.top != window && window.parent && window.parent.issiDialog) {
    window.parent.dlgClose();
  } else {
    window.opener.focus();
    window.close();
  }
}

//used to add more than one function to window.onload
function addLoadEvent(func) {
  var oldonload = window.onload;
  if (typeof window.onload != 'function') {
    window.onload = func;
  } else {
    window.onload = function() {
      if (oldonload) {
        oldonload();
      }
      func();
    }
  }
}