var N = 0;
var img_return = 0;
var flip_pos = 0;
    
function az_preload() {
 var temp = az_preload.arguments; 
 for(x=0; x < temp.length; x++) {
  img_preload[x]=new Image();
  img_preload[x].src=az_preload.arguments[x];
 }
}

function az_swap_over(N) {
  var i=0; 
  for (i=0; i < img_names.length; i++) {
   var img_name = 'th_'+ i;
   if (i == N)  document[img_name].src = img_folder + img_names[i] + ext_th_over; 
   else document[img_name].src = img_folder + img_names[i] + ext_thumb;
      }
 }
 
 function az_swap_main(N) {  
   /// alert(N);
   if(typeof flash_nums == "undefined") {     
       document.main.src = img_folder + img_names[N] + ext_main;         
       document.main.alt = img_alt[N];
        }        
    else {  
      y = document.getElementById('photo_box');             
      if (is_in_array(flash_nums,N) == 1) {
        do_flash = flash_displ(N,1,1);       
        y.innerHTML= do_flash;              
         }   
      else {      
        do_img = flash_displ(N,1,0);     
        y.innerHTML= do_img;
         }
      }    
     img_return = N;    
     if (flps == 1) {
     document.getElementById('frms').src = descr_folder + img_names[N] + "_1"  + ".html";
     fliptozero();     
        }         
     else if (flps == 2) {    
       z= document.getElementById('text_box');	  
       z.innerHTML= img_descr[N] + '<div id="frms"></div>'; 
        fliptozero();     
        }           
     else if (flps == 0) {
          z= document.getElementById('text_box');	  
          z.innerHTML= img_descr[N] + '<div id="frms"></div>'; ;          
        }         
   }
 
 function flip_through(dir){
  var k = flip_nums[img_return];
  var temp_arr =  make_add_array(img_return);
  if ((dir == 'next') && (flip_pos < k-1)) flip_pos = flip_pos + 1;
  if ((dir == 'pre') && (flip_pos > 0)) flip_pos = flip_pos - 1;
  if (flip_pos > 0) document.prevArrow.style.visibility = "visible";
  else document.prevArrow.style.visibility = "hidden";
  if (flip_pos >= k-1) document.nextArrow.style.visibility = "hidden";
  else document.nextArrow.style.visibility = "visible";
  document.main.src = img_folder + temp_arr[flip_pos];
  
 if (flps = 1) { 
 flip_descr_adr = descr_folder + img_names[img_return] + "_" + (flip_pos + 1) + ".html";
 document.getElementById('frms').src = flip_descr_adr;
        }     
 flip_txt = "Image " + (flip_pos + 1) + " of " + k;  // shows the number of flip
 flp = document.getElementById('flips');	  
 flp.innerHTML= flip_txt;   
 return temp_arr; 
}
   
   function fliptozero() {
  flip_pos = 0;
      document.prevArrow.style.visibility = "hidden";
  if (flip_nums[img_return] != 1)   document.nextArrow.style.visibility = "visible";
  else document.nextArrow.style.visibility = "hidden";
  
  document.getElementById('flips').innerHTML = "Image 1 of " + flip_nums[img_return]; 
}
  
 function az_restore() {
   xxx = az_swap_over(img_return);
 }
 
 function swaparrow(arrowName,source) {
  document[arrowName].src = source;
}
 
 function is_in_array(xarray,xval) {
       for(i=0; i < xarray.length; i++) {
         if (xval == xarray[i]) return 1;
         else return 0;     
      }
    }
        
function flash_displ(N,k,x_fl) {    /// x_fl = 0 for img src and  1 for flash 

 if (x_fl == 1)
  insert_obj = '<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=7,0,19,0" width="540" height="400" title="' + img_alt[N] + '">' +
  '<param name="movie" value="' + img_folder + img_names[N] + '_540_' + k + '.swf" />' +
  '<param name="quality" value="high" />' +
  '<embed src="' + img_folder + img_names[N] + '_540_' + k + '.swf" quality="high" pluginspage="http://www.macromedia.com/go/getflashplayer" type="application/x-shockwave-flash" width="540" height="400"></embed>' +
'</object>';
 else 
  
 insert_obj = '<img src="' + img_folder + img_names[N] + ext_main + '" alt="' + img_alt[N] + '" name="main" width="540" height="400" id="main" />';
return insert_obj;
}
  

    ///   Building the row of thumbnails with code
thumbs = '<div class="thumbs">';
  for (i=0; i < img_names.length; i++) {
    thumbs = thumbs + '<img src="' + img_folder + img_names[i] + ext_thumb + '" alt="' + img_alt[i] + '" name="th_'+i+'" onMouseOver="az_swap_over('+i+')" onClick="az_swap_main('+i+')" onMouseOut="az_restore()">';
     }
 thumbs = thumbs + '<\/div>'; 
    ///  alert(thumbs); 
      ///end building thumb row
      
  bottom = '<div class="footer"><img src="images/bottom756_' + pagename + '.gif" alt="' + pagename + '" name="' + pagename + '" id="' + pagename + '" /></div>';