jQuery.fn.pagination = function(maxentries, opts){ opts = jQuery.extend({ items_per_page:20, num_display_entries:10, current_page:0, num_edge_entries:0, link_to:"#", prev_text:"Prev", next_text:"Next", ellipse_text:"...", prev_show_always:true, next_show_always:true, callback:function(){return false;}},opts||{});
	
	return this.each(function() {
		function numPages() { return Math.ceil(maxentries/opts.items_per_page); }
		function getInterval()  {
			var ne_half = Math.ceil(opts.num_display_entries/2);
			var np = numPages();
			var upper_limit = np-opts.num_display_entries;
			var start = current_page>ne_half?Math.max(Math.min(current_page-ne_half, upper_limit), 0):0;
			var end = current_page>ne_half?Math.min(current_page+ne_half, np):Math.min(opts.num_display_entries, np);
			return [start,end];
		}
		function pageSelected(page_id, evt){
			current_page = page_id;
			drawLinks();
			var continuePropagation = opts.callback(page_id, panel);
			if (!continuePropagation) {
				if (evt.stopPropagation) { evt.stopPropagation();}
				else { evt.cancelBubble = true;}
			}
			return continuePropagation;
		}
		function drawLinks() {
			panel.empty();
			var interval = getInterval();
			var np = numPages();
			var getClickHandler = function(page_id) { return function(evt){ return pageSelected(page_id,evt); } }
			var appendItem = function(page_id, appendopts){
				page_id = page_id<0?0:(page_id<np?page_id:np-1);
				appendopts = jQuery.extend({text:page_id+1, classes:""}, appendopts||{});
				if(page_id == current_page){ var lnk = $("<span class='current'>"+(appendopts.text)+"</span>"); }
				else{
					var lnk = $("<a class='page'>"+(appendopts.text)+"</a>")
						.bind("click", getClickHandler(page_id));
						//.attr('href', opts.link_to.replace(/__id__/,page_id));
				}
				if(appendopts.classes){lnk.addClass(appendopts.classes);}
				panel.append(lnk);
			}
			if(opts.prev_text && (current_page > 0 || opts.prev_show_always)){ appendItem(current_page-1,{text:opts.prev_text, classes:"prev"}); }
			if (interval[0] > 0 && opts.num_edge_entries > 0){
				var end = Math.min(opts.num_edge_entries, interval[0]);
				for(var i=0; i<end; i++) {appendItem(i);}
				if(opts.num_edge_entries < interval[0] && opts.ellipse_text){ jQuery("<span>"+opts.ellipse_text+"</span>").appendTo(panel);}
			}
			for(var i=interval[0]; i<interval[1]; i++) { appendItem(i); }
			if (interval[1] < np && opts.num_edge_entries > 0){
				if(np-opts.num_edge_entries > interval[1]&& opts.ellipse_text){ jQuery("<span>"+opts.ellipse_text+"</span>").appendTo(panel); }
				var begin = Math.max(np-opts.num_edge_entries, interval[1]);
				for(var i=begin; i<np; i++) { appendItem(i); }
			}
			if(opts.next_text && (current_page < np-1 || opts.next_show_always)){ appendItem(current_page+1,{text:opts.next_text, classes:"next"}); }
		}
		var current_page = opts.current_page;
		maxentries = (!maxentries || maxentries < 0)?1:maxentries;
		opts.items_per_page = (!opts.items_per_page || opts.items_per_page < 0)?1:opts.items_per_page;
		var panel = jQuery(this);
		this.selectPage = function(page_id){ pageSelected(page_id);}
		this.prevPage = function(){ 
			if (current_page > 0) {
				pageSelected(current_page - 1);
				return true;
			} else { return false; }
		}
		this.nextPage = function(){ 
			if(current_page < numPages()-1) {
				pageSelected(current_page+1);
				return true;
			} else { return false; }
		}
		drawLinks();
	});
}