function imagegallery() {
	this.outerdiv = null;
	this.init = imagegallery_init;
	this.open = imagegallery_open;
	this.previous = imagegallery_previous;
	this.next = imagegallery_next;
	this.close = imagegallery_close;
	
	this.imgs = new Array();
	this.legends = new Array();
	this.imgcount = null;
	this.imgpath = null;
	this.i = null;
	
}
function imagegallery_init(it, imgpath, legend) {
	this.outerdiv = document.getElementById("imgbig");
	this.imgcount = it;
	this.imgpath = imgpath;
	this.legends = legend.split(',');
	for (var i = 1; i <= this.imgcount; i++) {
		this.imgs[i]= this.imgpath + i + '.jpg';
	}
}
function imagegallery_open(ix) {
	var c = getAnchorPosition('ib1');
	if (document.getElementById) {
		var o = document.getElementById("imgbig");
		var img = document.getElementById("imgbigfoto");
		var legend = document.getElementById("imgbiglegend");
		//if (o.style) {
			o.style.left = c.x;o.style.top = c.y;o.style.display = 'block';o.style.position = 'absolute';
			this.i = ix;
			img.src = this.imgs[ix];
			legend.innerHTML = this.legends[ix - 1];
		//}
	}
}
function imagegallery_close() {
	if (document.getElementById) {
		var o = document.getElementById("imgbig");
		if (o.style) {
			o.style.display = 'none';
		}
	}
}
function imagegallery_previous() {
	if (this.i == 1) this.i = this.imgcount;
	this.i--;
	document.imgbigfoto.src = this.imgpath + this.i + '.jpg';
	
	var ix = this.i - 1;
	var legend = document.getElementById("imgbiglegend");
	legend.innerHTML = this.legends[ix];
}
function imagegallery_next() {
	if (this.i == this.imgcount) {
		this.i = 0;
	}
	this.i++;
	document.imgbigfoto.src = this.imgpath + this.i + '.jpg';
	
	var ix = this.i - 1;
	var legend = document.getElementById("imgbiglegend");
	legend.innerHTML = this.legends[ix];
}

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

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;
	}