$.fn.pager = function(clas, options) {

	var settings = {
		navId: 'nav',
		navClass: 'nav',
		navAttach: 'append',
		highlightClass: 'highlight',
		prevText: '«',
		nextText: '»',
		linkText: null,
		linkWrap: null,
		height: null
	}
	if(options) $.extend(settings, options);

	return this.each( function () {
		var me = $(this);
		var size;
	  	var i = 0;
		var navid = '#'+settings.navId;

		function init () {
			size = $(clas, me).not(navid).size();
			if(settings.height == null) {
				settings.height = getHighest();
			}
			if(size > 1) {
				makeNav();
				show();
				highlight();
			}
			sizePanel();
			if(settings.linkWrap != null) {
				linkWrap();
			}
		}
		function makeNav () {
			var str = '<div id="'+settings.navId+'" class="'+settings.navClass+'"><div class="pageL">';
			str += '<a href="#" rel="prev">'+settings.prevText+'</a></div>';

			/**
			* @author dgt <ttn329@gmail.com>
			* @date modi by 2009-04-12
			*/
			/*
			for(var i = 0; i < size; i++) {
				var j = i+1;
				str += '<a href="#" rel="'+j+'">';
				str += (settings.linkText == null) ? j : settings.linkText[j-1];
				str += '</a>';
			}
			str += '<a href="#" rel="next">'+settings.nextText+'</a>';
			*/

			/**
			* @author dgt <ttn329@gmail.com>
			* @date modi by 2009-04-12
			*/
			str += '<div class="pageM">'+ i +'/'+size+'</div><div class="pageR"><a href="#" rel="next" class="a_n">'+settings.nextText+'</a></div>';
			str += '</div>';
			switch (settings.navAttach) {
				case 'before':
					$(me).before(str);
					break;
				case 'after':
					$(me).after(str);
					break;
				case 'prepend':
					$(me).prepend(str);
					break;
				default:
					$(me).append(str);
					break;
			}
		}
		function show () {
			$("#"+settings.navId).find('.pageM').text(parseInt(i+1)+'/'+size);
			//$("."+settings.navId).html(i+1+'/'+size);
			$(me).find(clas).not(navid).hide();
			var show = $(me).find(clas).not(navid).get(i);
			$(show).show();
		}
		function highlight () {
			$(me).find(navid).find('a').removeClass(settings.highlightClass);
			var show = $(me).find(navid).find('a').get(i+1);
			$(show).addClass(settings.highlightClass);
		}

		function sizePanel () {
			if($.browser.msie) {
				$(me).find(clas).not(navid).css( {
					height: settings.height
				});
			} else {
				$(me).find(clas).not(navid).css( {
					minHeight: settings.height
				});
			}
		}
		function getHighest () {
			var highest = 0;
			$(me).find(clas).not(navid).each(function () {

				if(this.offsetHeight > highest) {
					highest = this.offsetHeight;
				}
			});
			highest = highest + "px";
			return highest;
		}
		function getNavHeight () {
			var nav = $(navid).get(0);
			return nav.offsetHeight;
		}
		function linkWrap () {
			$(me).find(navid).find("a").wrap(settings.linkWrap);
		}
		init();
		$(navid).find("a").click(t);
		function t() {
			if($(this).attr('rel') == 'next') {
				if(i + 1 < size) {
					i = i+1;
				}
				/**
				*
				* dgt add
				* begin:
				*/
				else
				{
					i = 0;
				}
				/** end; */
			} else if($(this).attr('rel') == 'prev') {
				if(i > 0) {
					i = i-1;
				}
			} else {
				var j = $(this).attr('rel');
				i = j-1;
			}
			show();
			highlight();
			return false;
		}

	});
}