// ===================================================================
// Author: Matt Kruse <matt@mattkruse.com>
// WWW: http://www.mattkruse.com/
//
// NOTICE: You may use this code for any purpose, commercial or
// private, without any further permission from the author. You may
// remove this notice from your final code if you wish, however it is
// appreciated by the author if at least my web site address is kept.
//
// You may *NOT* re-distribute this code in any way except through its
// use. That means, you can include it in your product, or your web
// site, or any other form where the code is actually being used. You
// may not put the plain javascript up on your site for download or
// include it in your javascript libraries for download. 
// If you wish to share this code with others, please just point them
// to the URL instead.
// Please DO NOT link directly to my .js files from your site. Copy
// the files to your server and use them there. Thank you.
// ===================================================================
function PopupWindow_getXYPosition(anchorname) {
  var coordinates;
  if (this.type == "WINDOW") {
    coordinates = getAnchorWindowPosition(anchorname);
  } else {
    coordinates = getAnchorPosition(anchorname);
  }
  this.x = coordinates.x;
  this.y = coordinates.y;
}
function PopupWindow_setSize(width, height) {
  this.width = width;
  this.height = height;
}
function PopupWindow_populate(contents) {
  this.contents = contents;
  this.populated = false;
}
function PopupWindow_setUrl(url) {
  this.url = url;
}
function PopupWindow_setWindowProperties(props) {
  this.windowProperties = props;
}
function PopupWindow_refresh() {
  if (this.divName != null) {
    if (this.use_gebi) {
      document.getElementById(this.divName).innerHTML = this.contents;
    } else if (this.use_css) {
      document.all[this.divName].innerHTML = this.contents;
    } else if (this.use_layers) {
      var d = document.layers[this.divName];
      d.document.open();
      d.document.writeln(this.contents);
      d.document.close();
    }
  } else {
    if (this.popupWindow != null && !this.popupWindow.closed) {
      if (this.url != "") {
        this.popupWindow.location.href = this.url;
      } else {
        this.popupWindow.document.open();
        this.popupWindow.document.writeln(this.contents);
        this.popupWindow.document.close();
      }
      this.popupWindow.focus();
    }
  }
}
function PopupWindow_showPopup(anchorname) {
  this.getXYPosition(anchorname);
  this.x += this.offsetX;
  this.y += this.offsetY;
  if (!this.populated && (this.contents != "")) {
    this.populated = true;
    this.refresh();
  }
  if (this.divName != null) {
    if (this.use_gebi) {
      document.getElementById(this.divName).style.left = this.x + "px";
      document.getElementById(this.divName).style.top = this.y + "px";
      document.getElementById(this.divName).style.visibility = "visible";
    } else if (this.use_css) {
      document.all[this.divName].style.left = this.x;
      document.all[this.divName].style.top = this.y;
      document.all[this.divName].style.visibility = "visible";
    } else if (this.use_layers) {
      document.layers[this.divName].left = this.x;
      document.layers[this.divName].top = this.y;
      document.layers[this.divName].visibility = "visible";
    }
  } else {
    if (this.popupWindow == null || this.popupWindow.closed) {
      if (this.x < 0) {
        this.x = 0;
      }
      if (this.y < 0) {
        this.y = 0;
      }
      if (screen && screen.availHeight) {
        if ((this.y + this.height) > screen.availHeight) {
          this.y = screen.availHeight - this.height;
        }
      }
      if (screen && screen.availWidth) {
        if ((this.x + this.width) > screen.availWidth) {
          this.x = screen.availWidth - this.width;
        }
      }
      var avoidAboutBlank = window.opera || ( document.layers && !navigator.mimeTypes['*']) || navigator.vendor == 'KDE' ||
                            ( document.childNodes && !document.all && !navigator.taintEnabled);
      this.popupWindow = window.open(avoidAboutBlank ? "" : "about:blank", "window_" + anchorname, this.windowProperties +
                                                                                                   ",width=" + this.width +
                                                                                                   ",height=" + this.height +
                                                                                                   ",screenX=" + this.x +
                                                                                                   ",left=" + this.x +
                                                                                                   ",screenY=" + this.y +
                                                                                                   ",top=" + this.y + "");
    }
    this.refresh();
  }
}
function PopupWindow_hidePopup() {
  if (this.divName != null) {
    if (this.use_gebi) {
      document.getElementById(this.divName).style.visibility = "hidden";
    } else if (this.use_css) {
      document.all[this.divName].style.visibility = "hidden";
    } else if (this.use_layers) {
      document.layers[this.divName].visibility = "hidden";
    }
  } else {
    if (this.popupWindow && !this.popupWindow.closed) {
      this.popupWindow.close();
      this.popupWindow = null;
    }
  }
}
function PopupWindow_isClicked(e) {
  if (this.divName != null) {
    if (this.use_layers) {
      var clickX = e.pageX;
      var clickY = e.pageY;
      var t = document.layers[this.divName];
      if ((clickX > t.left) && (clickX < t.left + t.clip.width) && (clickY > t.top) && (clickY < t.top + t.clip.height)) {
        return true;
      } else {
        return false;
      }
    } else if (document.all) {
      var t = window.event.srcElement;
      while (t.parentElement != null) {
        if (t.id == this.divName) {
          return true;
        }
        t = t.parentElement;
      }
      return false;
    } else if (this.use_gebi && e) {
      var t = e.originalTarget;
      while (t.parentNode != null) {
        if (t.id == this.divName) {
          return true;
        }
        t = t.parentNode;
      }
      return false;
    }
    return false;
  }
  return false;
}
function PopupWindow_hideIfNotClicked(e) {
  if (this.autoHideEnabled && !this.isClicked(e)) {
    this.hidePopup();
  }
}
function PopupWindow_autoHide() {
  this.autoHideEnabled = true;
}
function PopupWindow_hidePopupWindows(e) {
  for (var i = 0; i < popupWindowObjects.length; i++) {
    if (popupWindowObjects[i] != null) {
      var p = popupWindowObjects[i];
      p.hideIfNotClicked(e);
    }
  }
}
function PopupWindow_attachListener() {
  if (document.layers) {
    document.captureEvents(Event.MOUSEUP);
  }
  window.popupWindowOldEventListener = document.onmouseup;
  if (window.popupWindowOldEventListener != null) {
    document.onmouseup = new Function("window.popupWindowOldEventListener();PopupWindow_hidePopupWindows();");
  } else {
    document.onmouseup = PopupWindow_hidePopupWindows;
  }
}
function PopupWindow() {
  if (!window.popupWindowIndex) {
    window.popupWindowIndex = 0;
  }
  if (!window.popupWindowObjects) {
    window.popupWindowObjects = new Array();
  }
  if (!window.listenerAttached) {
    window.listenerAttached = true;
    PopupWindow_attachListener();
  }
  this.index = popupWindowIndex++;
  popupWindowObjects[this.index] = this;
  this.divName = null;
  this.popupWindow = null;
  this.width = 0;
  this.height = 0;
  this.populated = false;
  this.visible = false;
  this.autoHideEnabled = false;
  this.contents = "";
  this.url = "";
  this.windowProperties = "toolbar=no,location=no,status=no,menubar=no,scrollbars=auto,resizable,alwaysRaised,dependent,titlebar=no";
  if (arguments.length > 0) {
    this.type = "DIV";
    this.divName = arguments[0];
  } else {
    this.type = "WINDOW";
  }
  this.use_gebi = false;
  this.use_css = false;
  this.use_layers = false;
  if (document.getElementById) {
    this.use_gebi = true;
  } else if (document.all) {
    this.use_css = true;
  } else if (document.layers) {
    this.use_layers = true;
  } else {
    this.type = "WINDOW";
  }
  this.offsetX = 0;
  this.offsetY = 0;
  this.getXYPosition = PopupWindow_getXYPosition;
  this.populate = PopupWindow_populate;
  this.setUrl = PopupWindow_setUrl;
  this.setWindowProperties = PopupWindow_setWindowProperties;
  this.refresh = PopupWindow_refresh;
  this.showPopup = PopupWindow_showPopup;
  this.hidePopup = PopupWindow_hidePopup;
  this.setSize = PopupWindow_setSize;
  this.isClicked = PopupWindow_isClicked;
  this.autoHide = PopupWindow_autoHide;
  this.hideIfNotClicked = PopupWindow_hideIfNotClicked;
}