var param = location.search;

var equal_sign = param.indexOf("img=")

var tname = param.substring(equal_sign+4,param.length)

if(equal_sign==-1)
    tname="";


function load_images(){

var y
var holdlast = total_img; //10
var check_prev = false;
var check_next = false;

 if (tname==""){

    y = holdlast;

 	if ((navigator.appName=="Netscape"&&parseFloat(navigator.appVersion)>4.8)||(navigator.appName=="Microsoft Internet Explorer")){

 	      document.getElementById("prevdiv").style.visibility='hidden'
        }

        if(document.layers){

             check_prev = true
             document.layers["prevlayer"].visibility='hide' //1

        }
  }

 else

 {


    y = tname

    if (tname >= holdlast)
    {
        if ((navigator.appName=="Netscape"&&parseFloat(navigator.appVersion)>4.8)||(navigator.appName=="Microsoft Internet Explorer")){

              document.getElementById("prevdiv").style.visibility='hidden'
        }

        if(document.layers){

            check_prev = true
            document.layers["prevlayer"].visibility='hide'  //2
        }
    }
    else
    {

        if ((navigator.appName=="Netscape"&&parseFloat(navigator.appVersion)>4.8)||(navigator.appName=="Microsoft Internet Explorer")){

              document.getElementById("prevdiv").style.visibility='visible'
        }

        if(document.layers){


           document.layers["prevlayer"].visibility='show'    //3

        }
    }

    if (tname <=3)
    {

       if ((navigator.appName=="Netscape"&&parseFloat(navigator.appVersion)>4.8)||(navigator.appName=="Microsoft Internet Explorer")){

 	      document.getElementById("nextdiv").style.visibility='hidden'

       }

       if(document.layers){


	  check_next = true
          document.layers["nextlayer"].visibility='hide'  //4
       }

    }
 }


	//first image display in main window and in thumbnail

  	if (y <= holdlast)
   	{

   	     document.gallery.src = "images/" + img_prefix + (y) + ".jpg";

   	     document.gallery0.src = "images/" + img_prefix + (y) + "s.jpg";


   	    /* if (navigator.appName=="Netscape"&&parseFloat(navigator.appVersion)>4.8)
	             {
	                 //document.gallery.title = alt_array[y]
	                 //document.gallery0.title = alt_array[y]
                     }
             else if (document.all)
             {

                         //document.gallery.alt = alt_array[y]
                         //document.gallery0.alt = alt_array[y]
             }*/

            if ((navigator.appName=="Netscape"&&parseFloat(navigator.appVersion)>4.8)||(navigator.appName=="Microsoft Internet Explorer")){

             	document.getElementById("desc").innerHTML = alt_array[y]
             }

            /* if(document.layers){


                document.layers["divID"].document.open()
                document.layers["divID"].document.write('<center><font face="Arial, Helvetica, sans-serif" size="2">')
		document.layers["divID"].document.write(alt_array[y])
	        document.layers["divID"].document.write('</font></center><br><br>')
		document.layers["divID"].document.close()

             }*/
   	}

        else

        {

             document.gallery.src = "images/gen/spacer.gif"

             document.gallery0.src = "images/gen/spacer.gif";
        }



        // second image display in thumbnail

	if (y-1 < 0 || y - 1 > holdlast)
	{
   		document.gallery1.src = "images/gen/spacer.gif";

   	}
	else
	{
	      document.gallery1.src = "images/" + img_prefix + (y-1) + "s.jpg";

	     /* if (navigator.appName=="Netscape"&&parseFloat(navigator.appVersion)>4.8)
	  	   {
		         document.gallery1.title = alt_array[y-1]

                   }
              else if (document.all)
               {

                         document.gallery1.alt = alt_array[y-1]
               }*/


	}

	if( y - 1 == holdlast)
	{

		 document.gallery.src ="images/" + img_prefix + (y-1) + ".jpg";

	     /* if (navigator.appName=="Netscape"&&parseFloat(navigator.appVersion)>4.8)
	         {
	      	          document.gallery.title = alt_array[y-1]

	      	 }
	      else if (document.all)
	      	 {

	      	          document.gallery.alt = alt_array[y-1]
                 }*/


              if ((navigator.appName=="Netscape"&&parseFloat(navigator.appVersion)>4.8)||(navigator.appName=="Microsoft Internet Explorer"))
                  {

	                  document.getElementById("desc").innerHTML = alt_array[y-1]
	          }

	     /* if(document.layers)
	          {

			document.layers["divID"].document.open()
			document.layers["divID"].document.write('<font face="Arial, Helvetica, sans-serif" size="2">')
			document.layers["divID"].document.write(alt_array[y-1])
			document.layers["divID"].document.write('</font>')
			document.layers["divID"].document.close()
                  }*/
   	 }




	// third image display in thumbnail

if (y-2 < 0 || y - 2 > holdlast)
	{
   		document.gallery2.src = "images/gen/spacer.gif";

   	}
	else
	{
	      document.gallery2.src = "images/" + img_prefix + (y-2) + "s.jpg";

	}

	if( y - 2 == holdlast)
	{

		 document.gallery.src ="images/" + img_prefix + (y-2) + ".jpg";

	   
              if ((navigator.appName=="Netscape"&&parseFloat(navigator.appVersion)>4.8)||(navigator.appName=="Microsoft Internet Explorer"))
                  {

	                  document.getElementById("desc").innerHTML = alt_array[y-2]
	          }

	}

	//fourth image display in thumbnail

	if (y-3 < 0 || y - 3 > holdlast)
	{
   		document.gallery3.src = "images/gen/spacer.gif";

   	}
	else
	{
	      document.gallery3.src = "images/" + img_prefix + (y-3) + "s.jpg";

	}

	if( y - 3 == holdlast)
	{

		 document.gallery.src ="images/" + img_prefix + (y-3) + ".jpg";

	   
              if ((navigator.appName=="Netscape"&&parseFloat(navigator.appVersion)>4.8)||(navigator.appName=="Microsoft Internet Explorer"))
                  {

	                  document.getElementById("desc").innerHTML = alt_array[y-3]
	          }

	}

	// fifth image display in thumbnail

	if (y-4 < 0 || y - 4 > holdlast)
	{
   		document.gallery4.src = "images/gen/spacer.gif";

   	}
	else
	{
	      document.gallery4.src = "images/" + img_prefix + (y-4) + "s.jpg";

	}

	if( y - 4 == holdlast)
	{

		 document.gallery.src ="images/" + img_prefix + (y-4) + ".jpg";

	   
              if ((navigator.appName=="Netscape"&&parseFloat(navigator.appVersion)>4.8)||(navigator.appName=="Microsoft Internet Explorer"))
                  {

	                  document.getElementById("desc").innerHTML = alt_array[y-4]
	          }

	}

	// sixth image display in thumbnail

if (y-5 < 0 || y - 5 > holdlast)
	{
   		document.gallery5.src = "images/gen/spacer.gif";

   	}
	else
	{
	      document.gallery5.src = "images/" + img_prefix + (y-5) + "s.jpg";

	}

	if( y - 5 == holdlast)
	{

		 document.gallery.src ="images/" + img_prefix + (y-5) + ".jpg";

	   
              if ((navigator.appName=="Netscape"&&parseFloat(navigator.appVersion)>4.8)||(navigator.appName=="Microsoft Internet Explorer"))
                  {

	                  document.getElementById("desc").innerHTML = alt_array[y-5]
	          }

	}

	// seventh image display in thumbnail

	if (y-6 < 0 || y - 6 > holdlast)
	{
   		document.gallery6.src = "images/gen/spacer.gif";

   	}
	else
	{
	      document.gallery6.src = "images/" + img_prefix + (y-6) + "s.jpg";

	}

	if( y - 6 == holdlast)
	{

		 document.gallery.src ="images/" + img_prefix + (y-6) + ".jpg";

	   
              if ((navigator.appName=="Netscape"&&parseFloat(navigator.appVersion)>4.8)||(navigator.appName=="Microsoft Internet Explorer"))
                  {

	                  document.getElementById("desc").innerHTML = alt_array[y-6]
	          }

	}

// eighth image display in thumbnail

if (y-7 < 0 || y - 7 > holdlast)
	{
   		document.gallery7.src = "images/gen/spacer.gif";

   	}
	else
	{
	      document.gallery7.src = "images/" + img_prefix + (y-7) + "s.jpg";

	}

	if( y - 7 == holdlast)
	{

		 document.gallery.src ="images/" + img_prefix + (y-7) + ".jpg";

	   
              if ((navigator.appName=="Netscape"&&parseFloat(navigator.appVersion)>4.8)||(navigator.appName=="Microsoft Internet Explorer"))
                  {

	                  document.getElementById("desc").innerHTML = alt_array[y-7]
	          }

	}
// nineth image display in thumbnail

if (y-8 < 0 || y - 8 > holdlast)
	{
   		document.gallery8.src = "images/gen/spacer.gif";

   	}
	else
	{
	      document.gallery8.src = "images/" + img_prefix + (y-8) + "s.jpg";

	}

	if( y - 8 == holdlast)
	{

		 document.gallery.src ="images/" + img_prefix + (y-8) + ".jpg";

	   
              if ((navigator.appName=="Netscape"&&parseFloat(navigator.appVersion)>4.8)||(navigator.appName=="Microsoft Internet Explorer"))
                  {

	                  document.getElementById("desc").innerHTML = alt_array[y-8]
	          }

	}
        // tenth image display in thumbnail


if (y-9 < 0 || y - 9 > holdlast)
	{
   		document.gallery9.src = "images/gen/spacer.gif";

   	}
	else
	{
	      document.gallery9.src = "images/" + img_prefix + (y-9) + "s.jpg";

	}

	if( y - 9 == holdlast)
	{

		 document.gallery.src ="images/" + img_prefix + (y-9) + ".jpg";

	   
              if ((navigator.appName=="Netscape"&&parseFloat(navigator.appVersion)>4.8)||(navigator.appName=="Microsoft Internet Explorer"))
                  {

	                  document.getElementById("desc").innerHTML = alt_array[y-9]
	          }

	}

     // eleveth image display in thumbnail

if (y-10 < 0 || y - 10 > holdlast)
	{
   		document.gallery10.src = "images/gen/spacer.gif";

   	}
	else
	{
	      document.gallery10.src = "images/" + img_prefix + (y-10) + "s.jpg";

	}

	if( y - 10 == holdlast)
	{

		 document.gallery.src ="images/" + img_prefix + (y-10) + ".jpg";

	   
              if ((navigator.appName=="Netscape"&&parseFloat(navigator.appVersion)>4.8)||(navigator.appName=="Microsoft Internet Explorer"))
                  {

	                  document.getElementById("desc").innerHTML = alt_array[y-10]
	          }

	}
        // twelvend image display in thumbnail

if (y-11 < 0 || y - 11 > holdlast)
	{
   		document.gallery11.src = "images/gen/spacer.gif";

   	}
	else
	{
	      document.gallery11.src = "images/" + img_prefix + (y-11) + "s.jpg";

	}

	if( y - 11 == holdlast)
	{

		 document.gallery.src ="images/" + img_prefix + (y-11) + ".jpg";

	   
              if ((navigator.appName=="Netscape"&&parseFloat(navigator.appVersion)>4.8)||(navigator.appName=="Microsoft Internet Explorer"))
                  {

	                  document.getElementById("desc").innerHTML = alt_array[y-11]
	          }

	}
        // thirteenth image display in thumbnail

if (y-12 < 0 || y - 12 > holdlast)
	{
   		document.gallery12.src = "images/gen/spacer.gif";

   	}
	else
	{
	      document.gallery12.src = "images/" + img_prefix + (y-12) + "s.jpg";

	}

	if( y - 12 == holdlast)
	{

		 document.gallery.src ="images/" + img_prefix + (y-12) + ".jpg";

	   
              if ((navigator.appName=="Netscape"&&parseFloat(navigator.appVersion)>4.8)||(navigator.appName=="Microsoft Internet Explorer"))
                  {

	                  document.getElementById("desc").innerHTML = alt_array[y-12]
	          }

	}



   var s_next = y - 4

   var s_prev = parseInt(y) + parseInt(4)

if ((navigator.appName=="Netscape"&&parseFloat(navigator.appVersion)>4.8)||(navigator.appName=="Microsoft Internet Explorer")){

   for(n=0;n<document.links.length;n++){

     if (document.links[n].name == "next_page"){

  	  document.links[n].href = html_filename+"?img="+s_next

     }


     if (document.links[n].name == "prev_page"){

     	  document.links[n].href = html_filename+"?img="+s_prev

      }
    }
  }

if(document.layers){


	if (check_prev == false){


  		//document.links[14].href = html_filename+"?img="+s_prev
  		document.layers["prevlayer"].document.links[0].href = html_filename+"?img="+s_prev

	}

	if (check_next == false){


   		//document.links[15].href = html_filename+"?img="+s_next
                document.layers["nextlayer"].document.links[0].href = html_filename+"?img="+s_next
	}
   }

}



function swap_img(num)

{

	var str = eval("document.gallery"+num+".src")

	var ind_1 = str.lastIndexOf("/")

	var file_name = str.substring(ind_1+1,str.length)

           if(file_name == "blank.gif")
              {
           	return
       	      }

	var ind_2 = file_name.lastIndexOf("s")

	var file_num = file_name.substring(0,ind_2)

        document.gallery.src = "images/" + file_num + ".jpg";
file_num = (file_num.substr(file_num.lastIndexOf("_") +1, file_num.length - file_num.lastIndexOf("_")));

        if (navigator.appName=="Netscape"&&parseFloat(navigator.appVersion)>4.8)
        {
                document.gallery.title = alt_array[file_num]
        }

        /*else if (document.all){

                document.gallery.alt = alt_array[file_num]
        }*/

        if ((navigator.appName=="Netscape"&&parseFloat(navigator.appVersion)>4.8)||(navigator.appName=="Microsoft Internet Explorer")){

             document.getElementById("desc").innerHTML = alt_array[file_num]
        }

       /* if(document.layers){


             document.layers["divID"].document.open()
             document.layers["divID"].document.write('<center><font face="Arial, Helvetica, sans-serif" size="2">')
	     document.layers["divID"].document.write(alt_array[file_num])
	     document.layers["divID"].document.write('</font></center>')
	     document.layers["divID"].document.close()
        }*/
}