// ===================================================================

// 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.

// ===================================================================

/* SOURCE FILE: AnchorPosition.js */

/*

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;

	}

/* SOURCE FILE: PopupWindow.js */

/*

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;

			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;

			}