var pagenum, pageitem;
var firstpage, lastpage;
var total_items;
var image_folder;
var category;




filler_image = "filler.gif"	// define filler graphics file name
image_folder = "images"				// images source directory
thumbnail_folder = "thumbnail"
detail_folder = "detail"
pagenum = 0;					// initialize first page
firstpage = 0;					// page starts from 0; item number starts from 1
pageitem = 10;					// define how many items want to be shown in each page