// *****   --------------   *****
// *****     makewin.js     *****
// *****   --------------   *****

/*
    +----------------------------------------------------------------------+
    | JavaScript Function                                                  |
    +----------------------------------------------------------------------+
    | NAME: makewin                                                        |
    |                                                                      |
    | AUTHOR: Chad Kuehn <chadkuehn@gmail.com>                             |
    |                                                                      |
    | DESCRIPTION:                                                         |
    |   Used to create a popup window and close it when the page unloads.  |
    |   Default properties:                                                |
    |   -resizable = true                                                  |
    |   -width = "500"                                                     |
    |   -height = "300"                                                    |
    |   -scrollbars = true                                                 |
    |                                                                      |
    | PARAMETERS:                                                          |
    |   url        - The url of the popup window. Does not handle custom   |
    |                messages.                                             |
    |   width      - The width of the window. (default 500)                |
    |   height     - The height of the window. (default 300)               |
    |   properties - Adjust othee window properties. (optional)            |
    |                Use an associative array to adjust these properties.  |
    |                 resizable                                            |
    |                 menubar                                              |
    |                 toolbar                                              |
    |                 status                                               |
    |                 directories                                          |
    |                 location                                             |
    |                 scrollbars                                           |
    |                 (e.g., {'menubar' : 1, 'resizable' : 0})             |
    |                                                                      |
    | DETAILS:                                                             |
    |   If the popup window is open, it will have the focus placed on it   |
    |   if the script is re-executed.                                      |
    +----------------------------------------------------------------------+
    | Copyright (c) chadkuehn.com                                          |
    +----------------------------------------------------------------------+
*/

var winxx;  //global variable
var winnamexx = 'win' + uniqid();
var persistxx = false;

function makewin(url, width, height)
{
  var winLeft;
  var winTop;
  if (winxx)
  {
    if(!winxx.closed)
    {
      winLeft = (winxx.screenLeft ? parseInt(winxx.screenLeft) : parseInt(winxx.screenX));
      winTop = (winxx.screenTop ? parseInt(winxx.screenTop) : parseInt(winxx.screenY));
      closewinxx()
    }
  }
  if((width == null) || (width == ''))
  {
     width = 500;
  }
  if((height == null) || (height == ''))
  {
     height = 300;
  }

  var altSettings = new Array();
  if(arguments.length == 4)
  {
     altSettings = arguments[3];
  }
  var xresizable = 1;
  var xmenubar = 0;
  var xtoolbar = 0;
  var xstatus = 0;
  var xdirectories = 0;
  var xlocation = 0;
  var xscrollbars = 1;
  for (var i in altSettings) 
  {
     switch(i)
     {
        case "resizable":
           xresizable = altSettings[i];
           break;
        case "menubar":
           xmenubar = altSettings[i];
           break;
        case "toolbar":
           xtoolbar = altSettings[i];
           break;
        case "status":
           xstatus = altSettings[i];
           break;
        case "directories":
           xdirectories = altSettings[i];
           break;
        case "location":
           xlocation = altSettings[i];
           break;
        case "scrollbars":
           xscrollbars = altSettings[i];
           break;
     }
  }

  var settings ='width = ' + width;
  settings += ', height = ' + height;
  settings += ', resizable = ' + xresizable;
  settings += ', menubar = ' + xmenubar;
  if(winLeft != null)
  {
    settings += ', left=' + winLeft + 'px';
  }
  if(winTop != null)
  {
    settings += ', top=' + winTop + 'px';
  }
  settings += ', toolbar = ' + xtoolbar;
  settings += ', status = ' + xstatus;
  settings += ', directories = ' + xdirectories;
  settings += ', location = ' + xlocation;
  settings += ', scrollbars = ' + xscrollbars;


  if((url.substr(0, 1) == '/') || (url.substr(0, 4) == 'http'))
  {
    winxx = window.open(url, winnamexx, settings);
  }
  else
  {
    winxx = window.open('', winnamexx, settings);
    winxx.document.write(url);
  }
}

function closewinxx()  //some programs call this script function directly
{
  if(winxx)
  {
    if(!winxx.closed)
    {
      if(persistxx == false) 
      {
        winxx.close();
        winxx = null;
      }
      persistxx = false;
    }
  }
}

addEvent(window, "unload", closewinxx);


function addEvent(obj, eventName, func)
{
  if(obj.addEventListener)
  {
    if(eventName.substr(0, 2) == 'on')
    {
      eventName = eventName.substr(2);
    }
    obj.addEventListener(eventName, func, false);
    return true;
  }
  else if (obj.attachEvent)
  {
    if(eventName.substr(0, 2) != 'on')
    {
      eventName = 'on' + eventName;
    }
    return obj.attachEvent(eventName, func);
  }
  else
  {
    return false;
  } 
} 

function uniqid()
{
  var len;
  if(arguments.length == 0)
  {
    len = 13;
  }
  else
  {
    len = arguments[0];
  }
  var letters = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';
  var i;
  var seq = "";
  for (i = 1; i <= len; i = i + 1)
  {
    seq += randomChar(letters);
  }
  return seq;
}

function randomChar(str)
{
  return str.charAt(randomInt(0, str.length-1));
}
function randomInt(low, high)
{
  return Math.floor(Math.random()*(high-low+1)) + low;
}