// JavaScript Document
var nxt_pg;
function imgflick(pg_nav)
	{
	 var pg_id = document.getElementById("pg_id").value;
	  var num_rows = document.getElementById("num_rows").value;
	  var medium = document.getElementById("medium").value;
 var subject = document.getElementById("subject").value;
 var style = document.getElementById("style").value;
 var size = document.getElementById("size").value;
 var orient = document.getElementById("orient").value;
  if(pg_nav == "f")
	 {
		 nxt_pg = 1;
	 }
  else if(pg_nav == "p" && pg_id != 1)
	 {
		 nxt_pg = ""+ pg_id +"" - 1;
	 }
  else if(pg_nav == "n" && pg_id != num_rows)
	 {
		pg_id++;
		nxt_pg = pg_id;
	 }
  else if(pg_nav == "l")
	 {
		nxt_pg = num_rows;
	 } 
	 else
	 {  
	    nxt_pg = pg_id;
	 }
 new Ajax.Updater( 'search_txt', 'search_brain.php', { method: 'get', parameters: {pg_id: nxt_pg, num_rows: num_rows, medium: medium, subject: subject, style:style, size:size, orient:orient }} );
 new Ajax.Updater( 'slide_grid', 'img_result.php', { method: 'get', parameters: {pg_id: nxt_pg, num_rows: num_rows, medium: medium, subject: subject, style:style, size:size, orient:orient }} );
 document.getElementById("pg_id").value = nxt_pg; 
 document.getElementById("num_s").innerHTML = "<b><u>"+ nxt_pg +"</u></b> of "+ num_rows +"";
	}