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;

	var origWidth, origHeight;
	if (ns4) {
		origWidth = window.innerWidth; origHeight = window.innerHeight;
		window.onresize = function() { if (window.innerWidth != origWidth || window.innerHeight != origHeight) history.go(0); }
	}
	
	if (nodyn) { event = "nope" }

///////////////////////  CUSTOMIZE HERE   ////////////////////
	var tipFollowMouse= true;	
	var tipWidth= 160;
	var offX= 20;	// how far from mouse to show tip
	var offY= 12; 
	var tipFontFamily= "Verdana, arial, helvetica, 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= "#000000";
	var tipBgColor= "#FFFFE1"; 
	var tipBorderColor= "#000080";
	var tipBorderWidth= 1;
	var tipBorderStyle= "ridge";
	var tipPadding= 4;

////////////////////  END OF CUSTOMIZATION AREA  ///////////////////

// 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>';

	var toggleCities = 'hidden';
	var toggleBeaches = 'hidden';
	var toggleMonuments = 'hidden';
	var toggleChurches = 'hidden';
	var toggleCaves = 'hidden';
	var toggleAirport = 'hidden';
	var toggleMountains = 'hidden';
	var togglePorts = 'hidden';
	var toggleObject;

	function hideallpoints(){
		if (toggleCities = 'visible')
			showPoints('cities');
			
		if (toggleBeaches = 'visible')
			showPoints('beaches');
			
		if (toggleMonuments = 'visible')
			showPoints('monuments');
		
		if (toggleChurches = 'visible')
			showPoints('churches');
		
		if (toggleCaves = 'visible')
			showPoints('caves');
		
		if (toggleAirport = 'visible')
			showPoints('airports');

		if (toggleMountains = 'visible')
			showPoints('mountains');
			
		if (togglePorts = 'visible')
			showPoints('ports');
			
	}

	function showPoints(calltype){

		var localToggle;

		if (calltype=='cities') {
			if (toggleCities == 'hidden') {toggleCities = 'visible';} else {toggleCities = 'hidden';}
			localToggle = toggleCities;
		}
		
		if (calltype=='beaches') {
			if (toggleBeaches == 'hidden') {toggleBeaches = 'visible';} else {toggleBeaches = 'hidden';}
			localToggle = toggleBeaches;

		}
		if (calltype=='monuments') {
			if (toggleMonuments == 'hidden') {toggleMonuments = 'visible';} else {toggleMonuments = 'hidden';}
			localToggle = toggleMonuments;

		}
		if (calltype=='churches') {
			if (toggleChurches == 'hidden') {toggleChurches = 'visible';} else {toggleChurches = 'hidden';}
			//for (var x = 1; x <= 11; x++) {document.getElementById("churches"+x).style.visibility = toggleChurches;}
			localToggle = toggleChurches;
		
		}
		if (calltype=='caves') {
			if (toggleCaves == 'hidden') {toggleCaves = 'visible';} else {toggleCaves = 'hidden';}
			localToggle = toggleCaves;

		}
		if (calltype=='airports') {
			if (toggleAirport == 'hidden') {toggleAirport = 'visible';} else {toggleAirport = 'hidden';}
			localToggle = toggleAirport;

		}
		if (calltype=='mountains') {
			if (toggleMountains == 'hidden') {toggleMountains = 'visible';} else {toggleMountains = 'hidden';}
			localToggle = toggleMountains;
		}
		if (calltype=='ports') {
			if (togglePorts == 'hidden') {togglePorts = 'visible';} else {togglePorts = 'hidden';}
			localToggle = togglePorts;

		}

		
		var i;
		//for (i=0; i<document.all.length; i++) { // (OLD VERSION)
		for (i=0; i<document.getElementsByTagName('div').length; i++) {
			//toggleObject = document.all[i]; // (OLD VERSION)
			toggleObject = document.getElementsByTagName('div')[i];
	
			if (toggleObject.id.substring(0,calltype.length) == calltype) {
				toggleObject.style.visibility=localToggle; 
			}

		}
		

	}


////////////////////////////////////////////////////////////
//  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,desc,fontcol,bgcol) {
		var dummy='';
	
		if (!tooltip) return;
		if (t1) clearTimeout(t1);	if (t2) clearTimeout(t2);
		tipOn = true;

		// set colors if included
		if (bgcol)	
			var curBgColor = bgcol;
		else 
			curBgColor = tipBgColor;

		if (fontcol)	
			var curFontColor = fontcol;
		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 + dummy + midStr + '<span style="font-family:' + tipFontFamily + '; font-size:' + tipFontSize + '; color:' + curFontColor + ';">' + desc + '</span>' + endStr + '</td></tr></table></td></tr></table>';
			tooltip.write(tip);
			tooltip.close();
		} else if (ie4||ie5||ns5) {
			var tip = startStr + dummy + midStr + '<span style="font-family:' + tipFontFamily + '; font-size:' + tipFontSize + '; color:' + curFontColor + ';">' + desc + '</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;
	}