//Gallery swap image code.


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")){

 	  // prevdiv.style.visibility ='hidden';
 	     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")){

           //prevdiv.style.visibility ='hidden';
             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")){

           //prevdiv.style.visibility ='visible';
             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")){

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

       }

       if(document.layers){


         //document.links[15].href = html_filename+"?img="+tname
	  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/slideshow/" + img_prefix + (y) + ".jpg";

   	     document.gallery0.src = "../../images/slideshow/" + 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.photo_main.desc.value = alt_array[y]

                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 = "../../includes/site_images/misc/spacer.gif"

             document.gallery0.src = "../../includes/site_images/misc/spacer.gif";
        }



        // second image display in thumbnail

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

   	}
	else
	{
	      document.gallery1.src = "../../images/slideshow/" + 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/slideshow/" + 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 = "../../includes/site_images/misc/spacer.gif";

	}
	else
	{

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

              if (navigator.appName=="Netscape"&&parseFloat(navigator.appVersion)>4.8)
		   {
		         document.gallery2.title = alt_array[y-2]

                   }

              else if (document.all)
                   {

                         document.gallery2.alt = alt_array[y-2]
                   }

	}


	if( y - 2 == holdlast)
	{

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

	       if (navigator.appName=="Netscape"&&parseFloat(navigator.appVersion)>4.8)
		   {
		         document.gallery.title = alt_array[y-2]

		   }

		else if (document.all)
		   {

		         document.gallery.alt = alt_array[y-2]
                   }

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

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

		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-2])
			document.layers["divID"].document.write('</font>')
			document.layers["divID"].document.close()
        	   }

	}



	//fourth image display in thumbnail


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

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


	      if (navigator.appName=="Netscape"&&parseFloat(navigator.appVersion)>4.8)
		   {
		         document.gallery3.title = alt_array[y-3]

                   }

               else if (document.all)
                {


                         document.gallery3.alt = alt_array[y-3]
                }
	}


        if( y - 3 == holdlast)
	{

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

	      if (navigator.appName=="Netscape"&&parseFloat(navigator.appVersion)>4.8)
	       	   {

	       	       document.gallery.title = alt_array[y-3]

	       	   }

	      else if (document.all)
	       	   {


	       	       document.gallery.alt = alt_array[y-3]
                   }

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

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

		    }

		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-3])
			document.layers["divID"].document.write('</font>')
			document.layers["divID"].document.close()
       		    }

	}





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

        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.photo_main.desc.value = alt_array[file_num]

             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()
        }
}



//var preimg = new Array();

//for(var x=0;x<4;x++){
//	preimg[x] = new Image();
//	preimg[x].src="../../gif/gallery/" + (x) + ".jpg";
//}

//function swapimg(num){

//    document.gallery.src = preimg[num].src;

//}