<!--

/*
Image w/ description tooltip- By Dynamic Web Coding (www.dyn-web.com)
Copyright 2002 by Sharon Paine
Visit http://www.dynamicdrive.com for this script
*/

/* IMPORTANT: Put script after tooltip div or 
	 put tooltip div just before </BODY>. */

var dom = (document.getElementById) ? true : false;
var ns5 = ((navigator.userAgent.indexOf("Gecko")>-1) && dom) ? true: false;
var ie5 = ((navigator.userAgent.indexOf("MSIE")>-1) && dom) ? true : false;
var ns4 = (document.layers && !dom) ? true : false;
var ie4 = (document.all && !dom) ? true : false;
var nodyn = (!ns5 && !ns4 && !ie4 && !ie5) ? true : false;

// resize fix for ns4
var origWidth, origHeight;
if (ns4) {
	origWidth = window.innerWidth; origHeight = window.innerHeight;
	window.onresize = function() { if (window.innerWidth != origWidth || window.innerHeight != origHeight) history.go(0); }
}

// avoid error of passing event object in older browsers
if (nodyn) { event = "nope" }

///////////////////////  CUSTOMIZE HERE   ////////////////////
// settings for tooltip 
// Do you want tip to move when mouse moves over link?
var tipFollowMouse= false;	
// Be sure to set tipWidth wide enough for widest image
var tipWidth= 432;
var offX= 20;	// how far from mouse to show tip
var offY= 60; 
var tipFontFamily= "arial, helvetica, verdana, sans-serif";
var tipFontSize= "8pt";
// set default text color and background color for tooltip here
// individual tooltips can have their own (set in messages arrays)
// but don't have to
var tipFontColor= "white";
var tipBgColor= "#669966"; 
var tipBorderColor= "#000080";
var tipBorderWidth= 2;
var tipBorderStyle= "ridge";
var tipPadding= 4;

// tooltip content goes here (image, description, optional bgColor, optional textcolor)
var messages = new Array();
// multi-dimensional arrays containing: 
// image and text for tooltip
// optional: bgColor and color to be sent to tooltip
messages[0] = new Array('01.jpg','Two page chart of types of spectacles used from the 13th – 20th century, from Social History of Spectacles, 1990');
messages[1] = new Array('02.jpg','Oldest Spectacles and case in Japan, ivory, 15th century, worn by eighth Shogun (quite possibly the oldest in the world with known provenance)');
messages[2] = new Array('03.jpg','Two spectacles of Tokugawa Leyasu (1542-1616) preserved at Kunozan Museum ');
messages[3] = new Array('04.gif','Also the spectacles at the Kunozan Museum, 16th century, from a Japanese website');
messages[4] = new Array('05.jpg','Spectacles and case of Monk Takuan (1574-1645) preserved at the Tokaiji Temple, Tokyo');
messages[5] = new Array('06.jpg','Early Chinese and Japanese spectacles, from Dr. Richard Greeff\'s work');
messages[6] = new Array('07.jpg','Explanation of eyeglasses, from the Encyclopedia of Terashima Ryoan, 1712');
messages[7] = new Array('08.jpg','Three examples of the midline nose bridge protrusion');
messages[8] = new Array('09.jpg','17th century, one support leg style, horn, for high powers');
messages[9] = new Array('10.jpg','17th century, one support leg style, horn');
messages[10] = new Array('11.jpg','17th century, two support legs style, horn, for high powers');
messages[11] = new Array('12.jpg','perhaps 18th century');
messages[12] = new Array('13.jpg','perhaps 17-18th century');
messages[13] = new Array('14.jpg','horn and wood, Optisches Museum, Jena');
messages[14] = new Array('15.jpg','possibly 18th Century');
messages[15] = new Array('16.jpg','Optisches Museum, Jena');
messages[16] = new Array('17.jpg','17-18th century, Optisches Museum, Jena');
messages[17] = new Array('18.jpg','17th century, brass, from A Spectacles of Spectacles, Exhibition catalogue, 1988 ');
messages[18] = new Array('19.jpg','17th century, from the A Spectacles of Spectacles, Exhibition catalogue, 1988');
messages[19] = new Array('20.jpg','17-18th century, one support leg style, tortoiseshell');
messages[20] = new Array('21.jpg','Close-up of 17-18th century example');
messages[21] = new Array('22.jpg','note detail');
messages[22] = new Array('23.jpg','Mutter Museum of the College of Physicians, Philadelphia');
messages[23] = new Array('24.jpg','Signboard of Optician of "Tamayo, Kyoto"(1800s), Social History of Spectacles, Tokyo');
messages[24] = new Array('25.jpg','Kogankyou');
messages[25] = new Array('26.jpg','Advertisement, late 1700’s – early 1800s');
messages[26] = new Array('27.jpg','Comic Figures, Katsushika Hokusai, circa 1820, A Spectacles of Spectacles, Exhibition catalogue, 1988');
messages[27] = new Array('28.jpg','Education Seen through the Parent’s Spectacles, Kitagawa Utamaro, after 1799, A Spectacles of Spectacles, Exhibition catalogue, 1988');
messages[28] = new Array('29.jpg','Lens Grinders, School of Subenobu, circa 1730, A Spectacles of Spectacles, Exhibition catalogue, 1988');
messages[29] = new Array('30.jpg','possibly Tibetan');
messages[30] = new Array('31.jpg','also possibly Tibetan');
messages[31] = new Array('32.jpg','17-18th century');
messages[32] = new Array('33.jpg','Early 18th century, Nuremburg style');
messages[33] = new Array('34.jpg','18th century, one support leg style, in brass');
messages[34] = new Array('35.jpg','We can make crystal lenses, from "Hikifuda; leaflet of opticians" (around 1850) Social History of Spectacles, Tokyo');
messages[35] = new Array('36.jpg','List of opticians from "Edo Shopping Guide Book"(published 1824) Social History of Spectacles, Tokyo');
messages[36] = new Array('37.jpg','List of opticians from "Tokyo Shopping Guide Book"(published 1890) Social History of Spectacles, Tokyo');
messages[37] = new Array('38.jpg','early 18th century');
messages[38] = new Array('39.jpg','18th century, one support leg style, brass');
messages[39] = new Array('40.jpg','18th century');
messages[40] = new Array('41.jpg','Small oval frame, hinged at nose bridge, brass, probably circa 1800');
messages[41] = new Array('42.jpg','early 19th century, Historical Society of Chester County, Keene, NH');
messages[42] = new Array('43.jpg','Round frame, 4 lens, very early 19th century');
messages[43] = new Array('44.jpg','1842');
messages[44] = new Array('45.jpg','Advertisement of New collapsible pocket spectacles, partronized by Imperial Household from "Tokyo Meibutsushi; Tokyo Shopping Guide Book"(published 1901) Social History of Spectacles, Tokyo');
messages[45] = new Array('46.jpg','Korean');
messages[46] = new Array('47.jpg','Family Reading, Kitagawa Utamaro, 1753-1806, A Spectacles of Spectacles, Exhibition catalogue, 1988');
messages[47] = new Array('48.jpg','Mask Carver, Tachibana Minko,1735- past 1810), from the book Saiga Skokunin buri, Volume 1,  1770, A Spectacles of Spectacles, Exhibition catalogue, 1988');
messages[48] = new Array('49.jpg','Running Figure followed by an actor with a mask, printed on rice paper, mid 19th century');
messages[49] = new Array('51.jpg','19th century');

////////////////////  END OF CUSTOMIZATION AREA  ///////////////////

// preload images that are to appear in tooltip
// from arrays above
if (document.images) {
	var theImgs = new Array();
	for (var i=0; i<messages.length; i++) {
  	theImgs[i] = new Image();
		theImgs[i].src = messages[i][0];
  }
}

// to layout image and text, 2-row table, image centered in top cell
// these go in var tip in doTooltip function
// startStr goes before image, midStr goes between image and text
var startStr = '<table width="' + tipWidth + '"><tr><td align="center" width="100%"><img src="';
var midStr = '" border="0"></td></tr><tr><td valign="top">';
var endStr = '</td></tr></table>';

////////////////////////////////////////////////////////////
//  initTip	- initialization for tooltip.
//		Global variables for tooltip. 
//		Set styles for all but ns4. 
//		Set up mousemove capture if tipFollowMouse set true.
////////////////////////////////////////////////////////////
var tooltip, tipcss;
function initTip() {
	if (nodyn) return;
	tooltip = (ns4)? document.tipDiv.document: (ie4)? document.all['tipDiv']: (ie5||ns5)? document.getElementById('tipDiv'): null;
	tipcss = (ns4)? document.tipDiv: tooltip.style;
	if (ie4||ie5||ns5) {	// ns4 would lose all this on rewrites
		tipcss.width = tipWidth+"px";
		tipcss.fontFamily = tipFontFamily;
		tipcss.fontSize = tipFontSize;
		tipcss.color = tipFontColor;
		tipcss.backgroundColor = tipBgColor;
		tipcss.borderColor = tipBorderColor;
		tipcss.borderWidth = tipBorderWidth+"px";
		tipcss.padding = tipPadding+"px";
		tipcss.borderStyle = tipBorderStyle;
	}
	if (tooltip&&tipFollowMouse) {
		if (ns4) document.captureEvents(Event.MOUSEMOVE);
		document.onmousemove = trackMouse;
	}
}

window.onload = initTip;

/////////////////////////////////////////////////
//  doTooltip function
//			Assembles content for tooltip and writes 
//			it to tipDiv
/////////////////////////////////////////////////
var t1,t2;	// for setTimeouts
var tipOn = false;	// check if over tooltip link
function doTooltip(evt,num) {
	if (!tooltip) return;
	if (t1) clearTimeout(t1);	if (t2) clearTimeout(t2);
	tipOn = true;
	// set colors if included in messages array
	if (messages[num][2])	var curBgColor = messages[num][2];
	else curBgColor = tipBgColor;
	if (messages[num][3])	var curFontColor = messages[num][3];
	else curFontColor = tipFontColor;
	if (ns4) {
		var tip = '<table bgcolor="' + tipBorderColor + '" width="' + tipWidth + '" cellspacing="0" cellpadding="' + tipBorderWidth + '" border="0"><tr><td><table bgcolor="' + curBgColor + '"width="100%" cellspacing="0" cellpadding="' + tipPadding + '" border="0"><tr><td>'+ startStr + messages[num][0] + midStr + '<center>' + '<span style="font-family:' + tipFontFamily + '; font-size:' + tipFontSize + '; color:' + curFontColor + ';">' + messages[num][1] + '</span>' + endStr + '</td></tr></table></td></tr></table>';
		tooltip.write(tip);
		tooltip.close();
	} else if (ie4||ie5||ns5) {
		var tip = startStr + messages[num][0] + midStr + '<center>' + '<span style="font-family:' + tipFontFamily + '; font-size:' + tipFontSize + '; color:' + curFontColor + ';">' + messages[num][1] + '</span>' + endStr;
		tipcss.backgroundColor = curBgColor;
	 	tooltip.innerHTML = tip;
	}
	if (!tipFollowMouse) positionTip(evt);
	else t1=setTimeout("tipcss.visibility='visible'",100);
}

var mouseX, mouseY;
function trackMouse(evt) {
	mouseX = (ns4||ns5)? evt.pageX: window.event.clientX + document.body.scrollLeft;
	mouseY = (ns4||ns5)? evt.pageY: window.event.clientY + document.body.scrollTop;
	if (tipOn) positionTip(evt);
}

/////////////////////////////////////////////////////////////
//  positionTip function
//		If tipFollowMouse set false, so trackMouse function
//		not being used, get position of mouseover event.
//		Calculations use mouseover event position, 
//		offset amounts and tooltip width to position
//		tooltip within window.
/////////////////////////////////////////////////////////////
function positionTip(evt) {
	if (!tipFollowMouse) {
		mouseX = (ns4||ns5)? evt.pageX: window.event.clientX + document.body.scrollLeft;
		mouseY = (ns4||ns5)? evt.pageY: window.event.clientY + document.body.scrollTop;
	}
	// tooltip width and height
	var tpWd = (ns4)? tooltip.width: (ie4||ie5)? tooltip.clientWidth: tooltip.offsetWidth;
	var tpHt = (ns4)? tooltip.height: (ie4||ie5)? tooltip.clientHeight: tooltip.offsetHeight;
	// document area in view (subtract scrollbar width for ns)
	var winWd = (ns4||ns5)? window.innerWidth-20+window.pageXOffset: document.body.clientWidth+document.body.scrollLeft;
	var winHt = (ns4||ns5)? window.innerHeight-20+window.pageYOffset: document.body.clientHeight+document.body.scrollTop;
	// check mouse position against tip and window dimensions
	// and position the tooltip 
	if ((mouseX+offX+tpWd)>winWd) 
		tipcss.left = (ns4)? mouseX-(tpWd+offX): mouseX-(tpWd+offX)+"px";
	else tipcss.left = (ns4)? mouseX+offX: mouseX+offX+"px";
	if ((mouseY+offY+tpHt)>winHt) 
		tipcss.top = (ns4)? winHt-(tpHt+offY): winHt-(tpHt+offY)+"px";
	else tipcss.top = (ns4)? mouseY+offY: mouseY+offY+"px";
	if (!tipFollowMouse) t1=setTimeout("tipcss.visibility='visible'",100);
}

function hideTip() {
	if (!tooltip) return;
	t2=setTimeout("tipcss.visibility='hidden'",100);
	tipOn = false;
}

//-->




