// ===================================================================
// 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.
// ===================================================================

/* 
   AnchorPosition.js
   Author: Matt Kruse
   Last modified: 10/11/02

   DESCRIPTION: These functions find the position of an <A> tag in a document,
   so other elements can be positioned relative to it.

   COMPATABILITY: Netscape 4.x,6.x,Mozilla, IE 5.x,6.x on Windows. Some small
   positioning errors - usually with Window positioning - occur on the 
   Macintosh platform.

   FUNCTIONS:
   getAnchorPosition(anchorname)
   Returns an Object() having .x and .y properties of the pixel coordinates
   of the upper-left corner of the anchor. Position is relative to the PAGE.

   getAnchorWindowPosition(anchorname)
   Returns an Object() having .x and .y properties of the pixel coordinates
   of the upper-left corner of the anchor, relative to the WHOLE SCREEN.

   NOTES:

   1) For popping up separate browser windows, use getAnchorWindowPosition. 
   Otherwise, use getAnchorPosition

   2) Your anchor tag MUST contain both NAME and ID attributes which are the 
   same. For example:
   <A NAME="test" ID="test"> </A>

   3) There must be at least a space between <A> </A> for IE5.5 to see the 
   anchor tag correctly. Do not do <A></A> with no space.
 */ 

// getAnchorPosition(anchorname)
//   This function returns an object having .x and .y properties which are the coordinates
//   of the named anchor, relative to the page.
function getAnchorPosition(anchorname) {
  // This function will return an Object with x and y properties
  var useWindow=false;
  var coordinates=new Object();
  var x=0,y=0;
  // Browser capability sniffing
  var use_gebi=false, use_css=false, use_layers=false;
  if (document.getElementById) { use_gebi=true; }
  else if (document.all) { use_css=true; }
  else if (document.layers) { use_layers=true; }
  // Logic to find position
  if (use_gebi && document.all) {
    x=AnchorPosition_getPageOffsetLeft(document.all[anchorname]);
    y=AnchorPosition_getPageOffsetTop(document.all[anchorname]);
  }
  else if (use_gebi) {
    var o=document.getElementById(anchorname);
    x=AnchorPosition_getPageOffsetLeft(o);
    y=AnchorPosition_getPageOffsetTop(o);
  }
  else if (use_css) {
    x=AnchorPosition_getPageOffsetLeft(document.all[anchorname]);
    y=AnchorPosition_getPageOffsetTop(document.all[anchorname]);
  }
  else if (use_layers) {
    var found=0;
    for (var i=0; i<document.anchors.length; i++) {
      if (document.anchors[i].name==anchorname) { found=1; break; }
    }
    if (found==0) {
      coordinates.x=0; coordinates.y=0; return coordinates;
    }
    x=document.anchors[i].x;
    y=document.anchors[i].y;
  }
  else {
    coordinates.x=0; coordinates.y=0; return coordinates;
  }
  coordinates.x=x;
  coordinates.y=y;
  return coordinates;
}

// getAnchorWindowPosition(anchorname)
//   This function returns an object having .x and .y properties which are the coordinates
//   of the named anchor, relative to the window
function getAnchorWindowPosition(anchorname) {
  var coordinates=getAnchorPosition(anchorname);
  var x=0;
  var y=0;
  if (document.getElementById) {
    if (isNaN(window.screenX)) {
      x=coordinates.x-document.body.scrollLeft+window.screenLeft;
      y=coordinates.y-document.body.scrollTop+window.screenTop;
    }
    else {
      x=coordinates.x+window.screenX+(window.outerWidth-window.innerWidth)-window.pageXOffset;
      y=coordinates.y+window.screenY+(window.outerHeight-24-window.innerHeight)-window.pageYOffset;
    }
  }
  else if (document.all) {
    x=coordinates.x-document.body.scrollLeft+window.screenLeft;
    y=coordinates.y-document.body.scrollTop+window.screenTop;
  }
  else if (document.layers) {
    x=coordinates.x+window.screenX+(window.outerWidth-window.innerWidth)-window.pageXOffset;
    y=coordinates.y+window.screenY+(window.outerHeight-24-window.innerHeight)-window.pageYOffset;
  }
  coordinates.x=x;
  coordinates.y=y;
  return coordinates;
}

// Functions for IE to get position of an object
function AnchorPosition_getPageOffsetLeft (el) {
  var ol=el.offsetLeft;
  while ((el=el.offsetParent) != null) { ol += el.offsetLeft; }
  return ol;
}
function AnchorPosition_getWindowOffsetLeft (el) {
  return AnchorPosition_getPageOffsetLeft(el)-document.body.scrollLeft;
} 
function AnchorPosition_getPageOffsetTop (el) {
  var ot=el.offsetTop;
  while((el=el.offsetParent) != null) { ot += el.offsetTop; }
  return ot;
}
function AnchorPosition_getWindowOffsetTop (el) {
  return AnchorPosition_getPageOffsetTop(el)-document.body.scrollTop;
}

// ===================================================================
// 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.
// ===================================================================

/* 
   PopupWindow.js
Author: Matt Kruse
Last modified: 02/16/04

DESCRIPTION: This object allows you to easily and quickly popup a window
in a certain place. The window can either be a DIV or a separate browser
window.

COMPATABILITY: Works with Netscape 4.x, 6.x, IE 5.x on Windows. Some small
positioning errors - usually with Window positioning - occur on the 
Macintosh platform. Due to bugs in Netscape 4.x, populating the popup 
window with <STYLE> tags may cause errors.

USAGE:
// Create an object for a WINDOW popup
var win = new PopupWindow(); 

// Create an object for a DIV window using the DIV named 'mydiv'
var win = new PopupWindow('mydiv'); 

// Set the window to automatically hide itself when the user clicks 
// anywhere else on the page except the popup
win.autoHide(); 

// Show the window relative to the anchor name passed in
win.showPopup(anchorname);

// Hide the popup
win.hidePopup();

// Set the size of the popup window (only applies to WINDOW popups
win.setSize(width,height);

// Populate the contents of the popup window that will be shown. If you 
// change the contents while it is displayed, you will need to refresh()
win.populate(string);

// set the URL of the window, rather than populating its contents
// manually
win.setUrl("http://www.site.com/");

// Refresh the contents of the popup
win.refresh();

// Specify how many pixels to the right of the anchor the popup will appear
win.offsetX = 50;

// Specify how many pixels below the anchor the popup will appear
win.offsetY = 100;

NOTES:
1) Requires the functions in AnchorPosition.js

2) Your anchor tag MUST contain both NAME and ID attributes which are the 
same. For example:
<A NAME="test" ID="test"> </A>

3) There must be at least a space between <A> </A> for IE5.5 to see the 
anchor tag correctly. Do not do <A></A> with no space.

4) When a PopupWindow object is created, a handler for 'onmouseup' is
attached to any event handler you may have already defined. Do NOT define
an event handler for 'onmouseup' after you define a PopupWindow object or
the autoHide() will not work correctly.
 */ 

// Set the position of the popup window based on the anchor
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;
}
// Set width/height of DIV/popup window
function PopupWindow_setSize(width,height) {
  this.width = width;
  this.height = height;
}
// Fill the window with contents
function PopupWindow_populate(contents) {
  this.contents = contents;
  this.populated = false;
}
// Set the URL to go to
function PopupWindow_setUrl(url) {
  this.url = url;
}
// Set the window popup properties
function PopupWindow_setWindowProperties(props) {
  this.windowProperties = props;
}
// Refresh the displayed contents of the popup
function PopupWindow_refresh() {
  if (this.divName != null) {
    // refresh the DIV object
    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();
    }
  }
}
// Position and show the popup, relative to an anchor object
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) {
    // Show the DIV object
    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 the popup window will go off-screen, move it so it doesn't
      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();
  }
}
// Hide the popup
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;
    }
  }
}
// Pass an event and return whether or not it was the popup DIV that was clicked
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) { // Need to hard-code this to trap IE for error-handling
      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) {
        //Changed by jmj, FF has problems tracing up to div
        //if (t.id==this.divName) {
        if (t.id=='yearmonth') {
          return true;
        }
        t = t.parentNode;
      }
      return false;
    }
    return false;
  }
  return false;
}

// Check an onMouseDown event to see if we should hide
function PopupWindow_hideIfNotClicked(e) {
  if (this.autoHideEnabled && !this.isClicked(e)) {
    this.hidePopup();
  }
}
// Call this to make the DIV disable automatically when mouse is clicked outside it
function PopupWindow_autoHide() {
  this.autoHideEnabled = true;
}
// This global function checks all PopupWindow objects onmouseup to see if they should be hidden
function PopupWindow_hidePopupWindows(e) {
  for (var i=0; i<popupWindowObjects.length; i++) {
    if (popupWindowObjects[i] != null) {
      var p = popupWindowObjects[i];
      p.hideIfNotClicked(e);
    }
  }
}
// Run this immediately to attach the event listener
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;
  }
}
// CONSTRUCTOR for the PopupWindow object
// Pass it a DIV name to use a DHTML popup, otherwise will default to window popup
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;
  // Method mappings
  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;
}