/***********************************************
* Book Flip slideshow script- © Ger Versluis 2003
* Permission granted to DynamicDrive.com to feature script
* This notice must stay intact for use
* Visit http://www.dynamicdrive.com/ for full source code
***********************************************/

/********************************************************
	Create a div with transparent place holder in your html	
	<div id="Book" style="position:relative">
		<img src="placeholder.gif" width="144" height="227">
	</div>
	width = 2*book image width +4 height = book image height+2

	Insert onload in body tag
		<body onload="ImageBook()">	

book width = 140 height= 225

		"photo1.jpg","http://www.dynamicdrive.com",
		"photo2.jpg","http://www.javascriptkit.com",
		"photo3.jpg","", //this slide isn't linked
		"photo4.jpg","http://www.codingforums.com" // NOTE No comma after last line

*********************************************************/

// 7 variables to control behavior
	var Book_Image_Width=240;
	var Book_Image_Height=180;
	var Book_Border=true;
	var Book_Border_Color="gray";
	var Book_Speed=20;
	var Book_NextPage_Delay=2000; //1 second=1000
	var Book_Vertical_Turn=0;	

// array to specify images and optional links. At least 4
// If Link is not needed keep it ""

	Book_Image_Sources=new Array(
		"antiguaimg/aa2.jpg","",
		"antiguaimg/aa1.jpg","",
		"antiguaimg/aa4.jpg","",
		"antiguaimg/aa3.jpg",""
		);

/***************** DO NOT EDIT BELOW **********************************/
	var B_LI,B_MI,B_RI,B_TI,B_Angle=0,B_CrImg=6,B_MaxW,B_Direction=1;
	var B_MSz,B_Stppd=false;B_Pre_Img=new Array(Book_Image_Sources.length);

	function ImageBook(){
		if(document.getElementById){
			for(i=0;i<Book_Image_Sources.length;i+=2){
				B_Pre_Img[i]=new Image();B_Pre_Img[i].src=Book_Image_Sources[i]}
			Book_Div=document.getElementById("Book");
			B_LI=document.createElement("img");Book_Div.appendChild(B_LI);	
			B_RI=document.createElement("img");Book_Div.appendChild(B_RI);
			B_MI=document.createElement("img");Book_Div.appendChild(B_MI);	
			B_LI.style.position=B_MI.style.position=B_RI.style.position="absolute";
			B_LI.style.zIndex=B_RI.style.zIndex=0;B_MI.style.zIndex=1;
			B_LI.style.top=(Book_Vertical_Turn?Book_Image_Height+1:0)+"px";
			B_LI.style.left=0+"px";
			B_MI.style.top=0+"px";
			B_MI.style.left=(Book_Vertical_Turn?0:Book_Image_Width+1)+"px";
			B_RI.style.top=0+"px";
			B_RI.style.left=(Book_Vertical_Turn?0:Book_Image_Width+1)+"px";
			B_LI.style.height=Book_Image_Height+"px";
			B_MI.style.height=Book_Image_Height+"px";
			B_RI.style.height=Book_Image_Height+"px";
			B_LI.style.width=Book_Image_Width+"px";
			B_MI.style.width=Book_Image_Width+"px";
			B_RI.style.width=Book_Image_Width+"px";
			if(Book_Border){
				B_LI.style.borderStyle=B_MI.style.borderStyle=B_RI.style.borderStyle="solid";
				B_LI.style.borderWidth=1+"px";
				B_MI.style.borderWidth=1+"px";
				B_RI.style.borderWidth=1+"px";
				B_LI.style.borderColor=B_MI.style.borderColor=B_RI.style.borderColor=Book_Border_Color}
			B_LI.src=B_Pre_Img[0].src;
			B_LI.lnk=Book_Image_Sources[1];
			B_MI.src=B_Pre_Img[2].src;
			B_MI.lnk=Book_Image_Sources[3];
			B_RI.src=B_Pre_Img[4].src;
			B_RI.lnk=Book_Image_Sources[5];
			B_LI.onclick=B_MI.onclick=B_RI.onclick=B_LdLnk;
			B_LI.onmouseover=B_MI.onmouseover=B_RI.onmouseover=B_Stp;
			B_LI.onmouseout=B_MI.onmouseout=B_RI.onmouseout=B_Rstrt;
			BookImages()}}

	function BookImages(){
		if(!B_Stppd){
			if(Book_Vertical_Turn){
				B_MSz=Math.abs(Math.round(Math.cos(B_Angle)*Book_Image_Height));
				MidOffset=!B_Direction?Book_Image_Height+1:Book_Image_Height-B_MSz;
				B_MI.style.top=MidOffset+"px";
				B_MI.style.height=B_MSz+"px"}
			else{	B_MSz=Math.abs(Math.round(Math.cos(B_Angle)*Book_Image_Width));
				MidOffset=B_Direction?Book_Image_Width+1:Book_Image_Width-B_MSz;
				B_MI.style.left=MidOffset+"px";
				B_MI.style.width=B_MSz+"px"}
			B_Angle+=Book_Speed/720*Math.PI;
			if(B_Angle>=Math.PI/2&&B_Direction){
				B_Direction=0;
				if(B_CrImg==Book_Image_Sources.length)B_CrImg=0;
				B_MI.src=B_Pre_Img[B_CrImg].src;
				B_MI.lnk=Book_Image_Sources[B_CrImg+1];
				B_CrImg+=2}
			if(B_Angle>=Math.PI){
				B_Direction=1;
				B_TI=B_LI;
				B_LI=B_MI;
				B_MI=B_TI;
				if(Book_Vertical_Turn)B_MI.style.top=0+"px";
				else B_MI.style.left=Book_Image_Width+1+"px";			
				B_MI.src=B_RI.src;
				B_MI.lnk=B_RI.lnk;

				setTimeout("Book_Next_Delay()",Book_NextPage_Delay)}
			else setTimeout("BookImages()",50)}
		else setTimeout("BookImages()",50)}

	function Book_Next_Delay(){
			if(B_CrImg==Book_Image_Sources.length)B_CrImg=0;
			B_RI.src=B_Pre_Img[B_CrImg].src;
			B_RI.lnk=Book_Image_Sources[B_CrImg+1];
			B_MI.style.zIndex=2;
			B_LI.style.zIndex=1;
			B_Angle=0;
			B_CrImg+=2;
		setTimeout("BookImages()",50)}

	function B_LdLnk(){if(this.lnk)window.location.href=this.lnk}
	function B_Stp(){B_Stppd=true;this.style.cursor=this.lnk?"pointer":"default"}
	function B_Rstrt(){B_Stppd=false}

