// the image path to use, with an {ITEMID} placeholder embedded in it
var WOWstrCoverPath = "http://www.syndetics.com/hw7.pl?isbn={ITEMID}/mc.gif&client=crrl&type=hw7";

// the widget's width (in pixels)
var WOWiWidgetWidth=400;

// the widget's height
var WOWiWidgetHeight=210;

// the slide speed (larger is faster 1-10)
var WOWslidespeed=2;

// cycles to pause per title
var WOWiPause=100;

// max width of visible titles in characters - however, a more precise method is used to ensure title fits onscreen
var WOWiTitleMaxShowingLength = 70;

// configure S curve - this is really percentages
var WOWarraySpeedRamp = new Array(-0.50,-0.37,-0.26,-0.17,-0.10,-0.05,-0.02,-0.01,0,0.01,0.02,0.05,0.10,0.17,0.26,0.37);

// bar-separated list of ASIN-or-ISBN/WowbraryURL/Title (no final bar)
var WOWstrRawData = "9786313371549|http://www.wowbrary.org/l.aspx?l=1517&c=535856&i=9786313371549&t=Michael+Jackson%3a+This+Is+It&widget|Michael Jackson: This Is It|9781419888908|http://www.wowbrary.org/l.aspx?l=1517&c=535609&i=9781419888908&t=Emma+(2009)&widget|Emma (2009)|9780066211312|http://www.wowbrary.org/l.aspx?l=1517&c=535817&i=9780066211312&t=Just+Kids&widget|Just Kids|9780385525213|http://www.wowbrary.org/l.aspx?l=1517&c=535293&i=9780385525213&t=The+Hidden+Brain%3a+How+Our+Unconscious+Minds+Elect+Presidents%2c+Control+Markets%2c+Wage+Wars%2c+and+Save+Our+Lives&widget|The Hidden Brain: How Our Unconscious Minds Elect Presidents, Control Markets, Wage Wars, and Save Our Lives|9780307468031|http://www.wowbrary.org/l.aspx?l=1517&c=535765&i=9780307468031&t=Pokemon+HeartGold+%26amp%3b+SoulSilver%3a+The+Official+Pokemon+Johto+Guide+%26amp%3b+Johto+Pokedex%3a+Prima+Official+Game+Guide&widget|Pokemon HeartGold & SoulSilver: The Official Pokemon Johto Guide & Johto Pokedex: Prima Official Game Guide|9781423117001|http://www.wowbrary.org/l.aspx?l=1517&c=535788&i=9781423117001&t=Birnbaum%27s+Walt+Disney+World+2010&widget|Birnbaum\'s Walt Disney World 2010|9781423113386|http://www.wowbrary.org/l.aspx?l=1517&c=535759&i=9781423113386&t=The+Kane+Chronicles%2c+Book+One%3a+The+Red+Pyramid&widget|The Kane Chronicles, Book One: The Red Pyramid|9781439191057|http://www.wowbrary.org/l.aspx?l=1517&c=535295&i=9781439191057&t=Courage+and+Consequence&widget|Courage and Consequence|9781423117025|http://www.wowbrary.org/l.aspx?l=1517&c=535771&i=9781423117025&t=Birnbaum%27s+Walt+Disney+World+For+Kids+2010&widget|Birnbaum\'s Walt Disney World For Kids 2010|9780375701931|http://www.wowbrary.org/l.aspx?l=1517&c=535747&i=9780375701931&t=Lark+and+Termite+(Vintage+Contemporaries)&widget|Lark and Termite (Vintage Contemporaries)|9781605295800|http://www.wowbrary.org/l.aspx?l=1517&c=535823&i=9781605295800&t=The+Runner%27s+Rule+Book%3a+Everything+a+Runner+Needs+to+Know--And+Then+Some&widget|The Runner\'s Rule Book: Everything a Runner Needs to Know--And Then Some|9780316043137|http://www.wowbrary.org/l.aspx?l=1517&c=535754&i=9780316043137&t=Twilight%3a+The+Complete+Illustrated+Movie+Companion&widget|Twilight: The Complete Illustrated Movie Companion|9781592404476|http://www.wowbrary.org/l.aspx?l=1517&c=535820&i=9781592404476&t=The+Stack+and+Tilt+Swing%3a+The+Definitive+Guide+to+the+Swing+That+Is+Remaking+Golf&widget|The Stack and Tilt Swing: The Definitive Guide to the Swing That Is Remaking Golf|9781569244531|http://www.wowbrary.org/l.aspx?l=1517&c=535815&i=9781569244531&t=Eating+Well+After+Weight+Loss+Surgery%3a+Over+140+Delicious+Low-Fat+High-Protein+Recipes+to+Enjoy+in+the+Weeks%2c+Months+and+Years+After+Surgery&widget|Eating Well After Weight Loss Surgery: Over 140 Delicious Low-Fat High-Protein Recipes to Enjoy in the Weeks, Months and Years After Surgery|9781591143161|http://www.wowbrary.org/l.aspx?l=1517&c=535292&i=9781591143161&t=Hell+to+Pay%3a+Operation+DOWNFALL+and+the+Invasion+of+Japan%2c+1945-1947&widget|Hell to Pay: Operation DOWNFALL and the Invasion of Japan, 1945-1947|9780767930727|http://www.wowbrary.org/l.aspx?l=1517&c=535291&i=9780767930727&t=Vegan+Soups+and+Hearty+Stews+for+All+Seasons&widget|Vegan Soups and Hearty Stews for All Seasons|9780385722193|http://www.wowbrary.org/l.aspx?l=1517&c=535748&i=9780385722193&t=Lullaby&widget|Lullaby|9780345331359|http://www.wowbrary.org/l.aspx?l=1517&c=535482&i=9780345331359&t=Cosmos&widget|Cosmos|9780307460318|http://www.wowbrary.org/l.aspx?l=1517&c=535801&i=9780307460318&t=The+Futurist%3a+The+Life+and+Films+of+James+Cameron&widget|The Futurist: The Life and Films of James Cameron|9781565129771|http://www.wowbrary.org/l.aspx?l=1517&c=534915&i=9781565129771&t=A+Reliable+Wife&widget|A Reliable Wife";

// gap between each image (use HTML):
var WOWimagegap="    "

var WOWslidebgcolor="white";
var WOWiMoveDirection = 1;  // -1, 0, 1
var WOWarraySlideWidths = new Array();
var WOWstrSlideContents = "<nobr>";
var WOWarrayRawData = WOWstrRawData.split("|");
for (WOWi = 0; WOWi < WOWarrayRawData.length; WOWi += 3) 
	WOWstrSlideContents += "<img id='WOWimage" + WOWi + "' src='" + WOWstrCoverPath.replace("{ITEMID}", WOWarrayRawData[WOWi]) + "' style='border: none;'>";
WOWstrSlideContents += '</nobr>';
var WOWiedom=document.all||document.getElementById;
if (WOWiedom) document.write('<span id="WOWtemp" style="visibility:hidden;position:absolute;top:-100px;left:-9000px">'+WOWstrSlideContents+'</span>')
var WOWiSlides = 0;
var WOWarraySlideCenters = new Array();
var WOWarraySlideTitles = new Array();
var WOWactualwidth;
var WOWcross_slide, WOWcross_slide2, WOWns_slide, WOWns_slide2;

// this isn't called until all images have loaded
function WOWfillup(){

    // figure out which images loaded and use just those to create the title array, eliminate gaps in the width array,
    // recreate WOWstrSlideContents for display, sum the image widths, and count valid slides
	var iTotalWidths = 0;
    WOWstrSlideContents = "<nobr>";
	WOWiSlides = 0;
	var i;
    for (i = 0; i < WOWarrayRawData.length; i += 3) 
        if (document.getElementById("WOWimage" + i).width > 1) {
            WOWarraySlideTitles[WOWiSlides] = WOWarrayRawData[i+2], 
            WOWarraySlideWidths[WOWiSlides] = document.getElementById("WOWimage" + i).width;
	        iTotalWidths += WOWarraySlideWidths[WOWiSlides];
    	    WOWstrSlideContents += "<a href='"+WOWarrayRawData[i+1]+"'><img src='" + 
						WOWstrCoverPath.replace("{ITEMID}", WOWarrayRawData[i]) + 
						"' title='Click to see more about " + WOWarrayRawData[i+2] + "' width='" + WOWarraySlideWidths[WOWiSlides] +
						"' style='border: none;'></a><img src='http://wowbrary.org/1x1.gif' width='10' style='border: none;'>"; // +WOWimagegap;
            WOWiSlides++;						
			}
    WOWstrSlideContents += '</nobr>';
    
    // for unclear reasons, sometimes the slides haven't really loaded in yet, so if none have arrived, exit and try again later
    if (WOWiSlides == 0) {
        setTimeout("WOWfillup()",100);
        return;
        }

	if (WOWiedom){
		WOWcross_slide = document.getElementById? document.getElementById("WOWtest2") : document.all.WOWtest2;
		WOWcross_slide2 = document.getElementById? document.getElementById("WOWtest3") : document.all.WOWtest3;
		WOWcross_slide.innerHTML = WOWcross_slide2.innerHTML = WOWstrSlideContents;
		
		// bug: Firefox reports wrong .offsetWidth initially (it takes it a bit to calculate it) - so we use a different method
		// WOWactualwidth = document.all ? WOWcross_slide.offsetWidth : document.getElementById("WOWtest2").offsetWidth;
		WOWactualwidth = iTotalWidths + 10*WOWiSlides;
		WOWcross_slide2.style.left = WOWactualwidth + "px";
		}
	else if (document.layers){
		WOWns_slide=document.ns_slidemenu.document.ns_slidemenu2;
		WOWns_slide2=document.ns_slidemenu.document.ns_slidemenu3;
		WOWns_slide.document.write(WOWstrSlideContents);
		WOWns_slide.document.close();
		WOWactualwidth=WOWns_slide.document.width;
		WOWns_slide2.left=WOWactualwidth;
		WOWns_slide2.document.write(WOWstrSlideContents);
		WOWns_slide2.document.close();
		}
		
// alert("WOWactualwidth: " + WOWactualwidth + "; slides: " + WOWiSlides + "; sum of widths: " + iTotalWidths + "; widths: " + strWidths);
// alert("try2: WOWactualwidth: " +  WOWcross_slide.offsetWidth);
	
	// compute the distance between each image (this is slightly off)
	// var fDistanceBetweenImages = (WOWactualwidth - iTotalWidths)/WOWiSlides;
	
	// compute the mid position of each slide
	var fSpot = 0;
	var strWidths = "";    
	var i;
	for (i = 0; i < WOWiSlides; i++) {
		WOWarraySlideCenters[i] = Math.round(fSpot + WOWarraySlideWidths[i]/2);
		fSpot += WOWarraySlideWidths[i] + 10;
		strWidths += WOWarraySlideWidths[i] + ":" +  WOWarraySlideCenters[i] + " ";
		}
// alert(strWidths + ' | ' + WOWiSlides + ' ' + iTotalWidths + ' | ' + WOWarrayRawData.length + ' ' + WOWstrSlideContents);

	// use timer to start slides moving
	lefttime=setInterval("WOWmoveSlides()",30);
}

function WOWAddOnload()
{
	if(window.addEventListener) window.addEventListener('load', WOWfillup, false);
	else if(window.attachEvent) window.attachEvent('onload', WOWfillup);
	else window.onload = WOWfillup;
}

// put self into calling chain
WOWAddOnload()

// converts a number up to 255 to a two-digit hex representation
function WOWtoHex(iValue) { 
	var strHex = "0123456789ABCDEF"; 
	return String(strHex.charAt(Math.floor(iValue / 16))) + String(strHex.charAt(iValue % 16)); 
}

// low level: simply sets slide 1 or 2 so that its iPosition'th part is at the left of the slider area
function WOWsetSlide(iSlide, iPosition) {

	// determine the slide
	var slide = WOWiedom ? (iSlide == 1 ? WOWcross_slide : WOWcross_slide2) : (iSlide == 1 ? WOWns_slide : WOWns_slide2);
	
	// put the new position in
	if (WOWiedom) slide.style.left = -iPosition + "px"; else slide.left = -iPosition;
}

// sets the two slides to the indicated position
function WOWsetPosition(iPosition) {

	// the first slide goes at the position
	WOWsetSlide(1, iPosition);
	
	// the second slide goes after it if necessary, or else before
	WOWsetSlide(2, iPosition + (WOWactualwidth - iPosition >= WOWiWidgetWidth ? WOWactualwidth : -WOWactualwidth));
}

// returns the x position associated with the given step, using ramping
function WOWStepToX(WOWiStep)
{
	// determine which slides we are between
	var bBeforeSlide = (WOWiStep % WOWarraySpeedRamp.length) < (WOWarraySpeedRamp.length / 2);
	var iSlide1 = Math.floor(WOWiStep / WOWarraySpeedRamp.length);
	var iSlide2 = (bBeforeSlide ? iSlide1 - 1 + WOWiSlides : iSlide1 + 1) % WOWiSlides;
	
	// compute the distance between the slides, taking into account that iSlide1 may be before or after iSlide2 AND they may be on opposing ends of the slider
	var iDistance = Math.min(Math.abs(WOWarraySlideCenters[iSlide1] - WOWarraySlideCenters[iSlide2]),
							 Math.min((WOWarraySlideCenters[iSlide1] - WOWarraySlideCenters[iSlide2] + WOWactualwidth) % WOWactualwidth,
							 		  (WOWarraySlideCenters[iSlide2] - WOWarraySlideCenters[iSlide1] + WOWactualwidth) % WOWactualwidth));



	// return the x position
	return Math.round(WOWarraySlideCenters[iSlide1] + iDistance*WOWarraySpeedRamp[WOWiStep % WOWarraySpeedRamp.length]);
}

// returns the slide nearest to the given step - this can be off if a wide slide is near a thin one
function WOWStepToSlide(WOWiStep)
{
	// step 0 .. WOWarraySpeedRamp.length - 1 is slide 0, etc.
	return Math.floor(WOWiStep / WOWarraySpeedRamp.length);
}

// returns the distance as a percentage to the nearest slide (0 means on top of it and 1 means between slides) - this can be off if a wide slide is near a thin one
function WOWDistanceToSlide(WOWiStep)
{
	return Math.abs(WOWarraySpeedRamp[WOWiStep % WOWarraySpeedRamp.length]*2.0);
}

var WOWiSlideShowing = -1; // this causes the first slide to roll in immediately
var WOWbSuspended = false;
var WOWiPausing = 0;
var WOWiPauseSuppression = 0;  // number of next steps to not pause during
var WOWiStep = 0;

function WOWmoveSlides() {

	// do nothing if suspended
	if (WOWbSuspended) return;
	
	// reduce pause suppression if it's on
	if (WOWiPauseSuppression > 0) WOWiPauseSuppression--;
	
	// countdown timer for when paused on an image
	if (WOWiPausing > 0) {
		WOWiPausing--;
		return;
		}

	// do nothing if not supposed to move
	if (!WOWiMoveDirection) return;
	
	// advance the step
	var iTotalSteps = WOWiSlides*WOWarraySpeedRamp.length;
	WOWiStep = (WOWiStep + WOWiMoveDirection + iTotalSteps) % iTotalSteps;
	
	// if this puts us at a slide, pause unless pause suppression is in place
	if (WOWDistanceToSlide(WOWiStep) == 0 && WOWiPauseSuppression == 0) WOWiPausing = WOWiPause;
	
	// set the new position
	WOWsetPosition((WOWStepToX(WOWiStep) - WOWiWidgetWidth/2) % WOWactualwidth);
	
	// see if the slide has changed
	if (WOWStepToSlide(WOWiStep) != WOWiSlideShowing) {
	
		// set the new slide
		WOWiSlideShowing = WOWStepToSlide(WOWiStep);


		// shorten titles initially 
		var strTitle = WOWarraySlideTitles[WOWiSlideShowing];
		while (strTitle.length > WOWiTitleMaxShowingLength) strTitle = strTitle.replace(/ [^ ]*( ...)?$/," ...");
		
		// put the possibly shortened title in place
		document.getElementById("WOWTitle").innerHTML = strTitle;
		
		// if the title is too long, truncate it (20 is used for the height because the type is set at 16 pt below
		while (document.getElementById("WOWTitle").offsetWidth > WOWiWidgetWidth || document.getElementById("WOWTitle").offsetHeight > 20)
			document.getElementById("WOWTitle").innerHTML = document.getElementById("WOWTitle").innerHTML.replace(/ [^ ]*( ...)?$/," ...");

		}
	
	// adjust the title color
	var iIntensity = Math.round(WOWDistanceToSlide(WOWiStep)*255);
	document.getElementById("WOWTitle").style.color = "#" + WOWtoHex(iIntensity) + WOWtoHex(iIntensity)+ WOWtoHex(iIntensity);


}

function WOWsetSpeed(iSpeedNew)
{	
	WOWiMoveDirection = iSpeedNew;
	WOWiPausing = 0;
	if (iSpeedNew) WOWiPauseSuppression = Math.round(WOWarraySpeedRamp.length/3);
}

// write out material for the area
if (WOWiedom||document.layers){
with (document){
	write('<table cellspacing="0" cellpadding="0" style="background-color: '+WOWslidebgcolor+'; border: 1px solid black; width: '+WOWiWidgetWidth+'px;"><tr><td style="text-align: center; color: orange; background-color: black; font: bold italic 24px Verdana; ">Weekly Highlights</td></tr><tr><td style="font-size: 5px;">&nbsp;</td></tr><tr><td align="left">')
	if (WOWiedom){
		write('<div style="position:relative;width:'+WOWiWidgetWidth+'px;height:'+WOWiWidgetHeight+'px;overflow:hidden" onMouseover="WOWbSuspended = true" onMouseout="WOWbSuspended = false">')
		write('<div style="position:absolute;width:'+WOWiWidgetWidth+'px;height:'+WOWiWidgetHeight+'px;background-color:'+WOWslidebgcolor+'">'); //  
		write('<div id="WOWtest2" style="position:absolute;left:0px;top:0px"></div>')
		write('<div id="WOWtest3" style="position:absolute;left:-1000px;top:0px"></div>')
		write('</div></div>')
		}
	else if (document.layers){
		write('<ilayer width='+WOWiWidgetWidth+'px height='+WOWiWidgetHeight+'px name="ns_slidemenu" bgColor='+WOWslidebgcolor+'>')
		write('<layer name="ns_slidemenu2" left=0 top=0></layer>'); // onMouseover="copyspeed=0" onMouseout="copyspeed=WOWslidespeed"
		write('<layer name="ns_slidemenu3" left=0 top=0></layer>'); //  onMouseover="copyspeed=0" onMouseout="copyspeed=WOWslidespeed"
		write('</ilayer>')
		}

	write('</td></tr><td align="center"><b><span style="color: black; font-family: Verdana, Helvetica, Arial; font-size: 13px;" id="WOWTitle">&nbsp;</span></b></td></tr>');

	write('<tr style="background-color: '+WOWslidebgcolor+';"><td align="center"><a href="http://www.wowbrary.org/nu.aspx?p=1517--GEN&more"><img style="border: none;" src="http://www.wowbrary.org/images/slidermoreup.gif" title="Click to see more new books, movies, and CDs"/></a> &nbsp; &nbsp; &nbsp; <img style="border: none;" onclick="WOWsetSpeed(1);" src="http://www.wowbrary.org/images/sliderleftup.gif" style="margin-right: 1px;" title="Go right to left" /><img onclick="WOWsetSpeed(0);" src="http://www.wowbrary.org/images/sliderstopup.gif" title="Stop" style="border: none;" /><img onclick="WOWsetSpeed(-1)" src="http://www.wowbrary.org/images/sliderrightup.gif" title="Go left to right" style="border: none;" /></td></tr>')

	write('</table>')
	}
}