var Book_Image_Width=179;
       var Book_Image_Height=137;
       var Book_Border=true;
       var Book_Border_Color="#739ab7";
       var Book_Speed=15;
       var Book_NextPage_Delay=5000; 
       var Book_Vertical_Turn=0;
       
       Book_Image_Sources = new Array(
	      "grafika/f1.jpg","",
	      "grafika/f2.jpg","",
	      "grafika/f3.jpg","",
	      "grafika/f4.jpg",""
              );

       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}