var kkpager = {
	pagerid: 'kkpager',
	mode: 'link',
	pno: 1,
	total: 1,
	totalrecords: 0,
	isshowfirstpagebtn: true,
	isshowlastpagebtn: true,
	isshowprepagebtn: true,
	isshownextpagebtn: true,
	isshowtotalpage: true,
	isshowcurrpage: true,
	isshowtotalrecords: false,
	isgopage: true,
	iswrapedpagebtns: true,
	iswrapedinfotextandgopagebtn: true,
	hrefformer: '',
	hreflatter: '',
	gopagewrapid: 'kkpager_gopage_wrap',
	gopagebuttonid: 'kkpager_btn_go',
	gopagetextboxid: 'kkpager_btn_go_input',
	lang: {
		firstpagetext: '首页',
		firstpagetiptext: '首页',
		lastpagetext: '尾页',
		lastpagetiptext: '尾页',
		prepagetext: '上一页',
		prepagetiptext: '上一页',
		nextpagetext: '下一页',
		nextpagetiptext: '下一页',
		totalpagebeforetext: '共',
		totalpageaftertext: '页',
		currpagebeforetext: '当前第',
		currpageaftertext: '页',
		totalinfosplitstr: '/',
		totalrecordsbeforetext: '共',
		totalrecordsaftertext: '条数据',
		gopagebeforetext: ' 转到',
		gopagebuttonoktext: '确定',
		gopageaftertext: '页',
		buttontipbeforetext: '第',
		buttontipaftertext: '页'
	},
	getlink: function(n) {
		if (n == 1) {
			return this.hrefformer + this.hreflatter
		}
		return this.hrefformer + '_' + n + this.hreflatter
	},
	click: function(n) {
		return false
	},
	gethref: function(n) {
		return '#'
	},
	focus_gopage: function() {
		var btngo = $('#' + this.gopagebuttonid);
		$('#' + this.gopagetextboxid).attr('hidefocus', true);
		btngo.show();
		btngo.css('left', '10px');
		$('#' + this.gopagetextboxid).addclass('focus');
		btngo.animate({
			left: '+=30'
		}, 50)
	},
	blur_gopage: function() {
		var _this = this;
		settimeout(function() {
			var btngo = $('#' + _this.gopagebuttonid);
			btngo.animate({
				left: '-=25'
			}, 100, function() {
				btngo.hide();
				$('#' + _this.gopagetextboxid).removeclass('focus')
			})
		}, 400)
	},
	keypress_gopage: function() {
		var event = arguments[0] || window.event;
		var code = event.keycode || event.charcode;
		if (code == 8) return true;
		if (code == 13) {
			kkpager.gopage();
			return false
		}
		if (event.ctrlkey && (code == 99 || code == 118)) return true;
		if (code < 48 || code > 57) return false;
		return true
	},
	gopage: function() {
		var str_page = $('#' + this.gopagetextboxid).val();
		if (isnan(str_page)) {
			$('#' + this.gopagetextboxid).val(this.next);
			return
		}
		var n = parseint(str_page);
		if (n < 1) n = 1;
		if (n > this.total) n = this.total;
		if (this.mode == 'click') {
			this._clickhandler(n)
		} else {
			window.location = this.getlink(n)
		}
	},
	selectpage: function(n) {
		this._config['pno'] = n;
		this.generpagehtml(this._config, true)
	},
	generpagehtml: function(config, enforceinit) {
		if (enforceinit || !this.inited) {
			this.init(config)
		}
		var str_first = '',
			str_prv = '',
			str_next = '',
			str_last = '';
		if (this.isshowfirstpagebtn) {
			if (this.hasprv) {
				str_first = '<a ' + this._gethandlerstr(1) + ' title="' + (this.lang.firstpagetiptext || this.lang.firstpagetext) + '">' + this.lang.firstpagetext + '</a>'
			} else {
				str_first = '<span class="disabled">' + this.lang.firstpagetext + '</span>'
			}
		}
		if (this.isshowprepagebtn) {
			if (this.hasprv) {
				//str_prv = '<a ' + this._gethandlerstr(this.prv) + ' title="' + (this.lang.prepagetiptext || this.lang.prepagetext) + '">' + this.lang.prepagetext + '</a>'
			} else {
			//	str_prv = '<span class="disabled">' + this.lang.prepagetext + '</span>'
			}
		}
		if (this.isshownextpagebtn) {
			if (this.hasnext) {
				//str_next = '<a ' + this._gethandlerstr(this.next) + ' title="' + (this.lang.nextpagetiptext || this.lang.nextpagetext) + '">' + this.lang.nextpagetext + '</a>'
			} else {
				//str_next = '<span class="disabled">' + this.lang.nextpagetext + '</span>'
			}
		}
		if (this.isshowlastpagebtn) {
			if (this.hasnext) {
				str_last = '<a ' + this._gethandlerstr(this.total) + ' title="' + (this.lang.lastpagetiptext || this.lang.lastpagetext) + '">' + this.lang.lastpagetext + '</a>'
			} else {
				str_last = '<span class="disabled">' + this.lang.lastpagetext + '</span>'
			}
		}
		var str = '';
		var dot = '<span class="spandot">...</span>';
		var total_info = '<span class="totaltext">';
		var total_info_splitstr = '<span class="totalinfosplitstr">' + this.lang.totalinfosplitstr + '</span>';
		if (this.isshowcurrpage) {
			total_info += this.lang.currpagebeforetext + '<span class="currpagenum">' + this.pno + '</span>' + this.lang.currpageaftertext;
			if (this.isshowtotalpage) {
				total_info += total_info_splitstr;
				total_info += this.lang.totalpagebeforetext + '<span class="totalpagenum">' + this.total + '</span>' + this.lang.totalpageaftertext
			} else if (this.isshowtotalrecords) {
				total_info += total_info_splitstr;
				total_info += this.lang.totalrecordsbeforetext + '<span class="totalrecordnum">' + this.totalrecords + '</span>' + this.lang.totalrecordsaftertext
			}
		} else if (this.isshowtotalpage) {
			total_info += this.lang.totalpagebeforetext + '<span class="totalpagenum">' + this.total + '</span>' + this.lang.totalpageaftertext;
			if (this.isshowtotalrecords) {
				total_info += total_info_splitstr;
				total_info += this.lang.totalrecordsbeforetext + '<span class="totalrecordnum">' + this.totalrecords + '</span>' + this.lang.totalrecordsaftertext
			}
		} else if (this.isshowtotalrecords) {
			total_info += this.lang.totalrecordsbeforetext + '<span class="totalrecordnum">' + this.totalrecords + '</span>' + this.lang.totalrecordsaftertext
		}
		total_info += '</span>';
		var gopage_info = '';
		if (this.isgopage) {
			gopage_info = '<span class="gopagebox">' + this.lang.gopagebeforetext + '<span id="' + this.gopagewrapid + '">' + '<input type="button" id="' + this.gopagebuttonid + '" onclick="kkpager.gopage()" value="' + this.lang.gopagebuttonoktext + '" />' + '<input type="text" id="' + this.gopagetextboxid + '" onfocus="kkpager.focus_gopage()"  onkeypress="return kkpager.keypress_gopage(event);"   onblur="kkpager.blur_gopage()" value="' + this.next + '" /></span>' + this.lang.gopageaftertext + '</span>'
		}
		if (this.total <= 8) {
			for (var i = 1; i <= this.total; i++) {
				if (this.pno == i) {
					str += '<span class="curr">' + i + '</span>'
				} else {
					str += '<a ' + this._gethandlerstr(i) + ' title="' + this.lang.buttontipbeforetext + i + this.lang.buttontipaftertext + '">' + i + '</a>'
				}
			}
		} else {
			if (this.pno <= 5) {
				for (var i = 1; i <= 7; i++) {
					if (this.pno == i) {
						str += '<span class="curr">' + i + '</span>'
					} else {
						str += '<a ' + this._gethandlerstr(i) + ' title="' + this.lang.buttontipbeforetext + i + this.lang.buttontipaftertext + '">' + i + '</a>'
					}
				}
				str += dot
			} else {
				str += '<a ' + this._gethandlerstr(1) + ' title="' + this.lang.buttontipbeforetext + '1' + this.lang.buttontipaftertext + '">1</a>';
				str += '<a ' + this._gethandlerstr(2) + ' title="' + this.lang.buttontipbeforetext + '2' + this.lang.buttontipaftertext + '">2</a>';
				str += dot;
				var begin = this.pno - 2;
				var end = this.pno + 2;
				if (end > this.total) {
					end = this.total;
					begin = end - 4;
					if (this.pno - begin < 2) {
						begin = begin - 1
					}
				} else if (end + 1 == this.total) {
					end = this.total
				}
				for (var i = begin; i <= end; i++) {
					if (this.pno == i) {
						str += '<span class="curr">' + i + '</span>'
					} else {
						str += '<a ' + this._gethandlerstr(i) + ' title="' + this.lang.buttontipbeforetext + i + this.lang.buttontipaftertext + '">' + i + '</a>'
					}
				}
				if (end != this.total) {
					str += dot
				}
			}
		}
		var pagerhtml = '<div>';
		if (this.iswrapedpagebtns) {
			pagerhtml += '<span class="pagebtnwrap">' + str_first + str_prv + str + str_next + str_last + '</span>'
		} else {
			pagerhtml += str_first + str_prv + str + str_next + str_last
		}
		if (this.iswrapedinfotextandgopagebtn) {
			pagerhtml += '<span class="infotextandgopagebtnwrap">' + total_info + gopage_info + '</span>'
		} else {
			pagerhtml += total_info + gopage_info
		}
		pagerhtml += '</div><div style="clear:both;"></div>';
		$("#" + this.pagerid).html(pagerhtml)
	},
	init: function(config) {
		this.pno = isnan(config.pno) ? 1 : parseint(config.pno);
		this.total = isnan(config.total) ? 1 : parseint(config.total);
		this.totalrecords = isnan(config.totalrecords) ? 0 : parseint(config.totalrecords);
		if (config.pagerid) {
			this.pagerid = config.pagerid
		}
		if (config.mode) {
			this.mode = config.mode
		}
		if (config.gopagewrapid) {
			this.gopagewrapid = config.gopagewrapid
		}
		if (config.gopagebuttonid) {
			this.gopagebuttonid = config.gopagebuttonid
		}
		if (config.gopagetextboxid) {
			this.gopagetextboxid = config.gopagetextboxid
		}
		if (config.isshowfirstpagebtn != undefined) {
			this.isshowfirstpagebtn = config.isshowfirstpagebtn
		}
		if (config.isshowlastpagebtn != undefined) {
			this.isshowlastpagebtn = config.isshowlastpagebtn
		}
		if (config.isshowprepagebtn != undefined) {
			this.isshowprepagebtn = config.isshowprepagebtn
		}
		if (config.isshownextpagebtn != undefined) {
			this.isshownextpagebtn = config.isshownextpagebtn
		}
		if (config.isshowtotalpage != undefined) {
			this.isshowtotalpage = config.isshowtotalpage
		}
		if (config.isshowcurrpage != undefined) {
			this.isshowcurrpage = config.isshowcurrpage
		}
		if (config.isshowtotalrecords != undefined) {
			this.isshowtotalrecords = config.isshowtotalrecords
		}
		if (config.iswrapedpagebtns) {
			this.iswrapedpagebtns = config.iswrapedpagebtns
		}
		if (config.iswrapedinfotextandgopagebtn) {
			this.iswrapedinfotextandgopagebtn = config.iswrapedinfotextandgopagebtn
		}
		if (config.isgopage != undefined) {
			this.isgopage = config.isgopage
		}
		if (config.lang) {
			for (var key in config.lang) {
				this.lang[key] = config.lang[key]
			}
		}
		this.hrefformer = config.hrefformer || '';
		this.hreflatter = config.hreflatter || '';
		if (config.getlink && typeof(config.getlink) == 'function') {
			this.getlink = config.getlink
		}
		if (config.click && typeof(config.click) == 'function') {
			this.click = config.click
		}
		if (config.gethref && typeof(config.gethref) == 'function') {
			this.gethref = config.gethref
		}
		if (!this._config) {
			this._config = config
		}
		if (this.pno < 1) this.pno = 1;
		this.total = (this.total <= 1) ? 1 : this.total;
		if (this.pno > this.total) this.pno = this.total;
		this.prv = (this.pno <= 2) ? 1 : (this.pno - 1);
		this.next = (this.pno >= this.total - 1) ? this.total : (this.pno + 1);
		this.hasprv = (this.pno > 1);
		this.hasnext = (this.pno < this.total);
		this.inited = true
	},
	_gethandlerstr: function(n) {
		if (this.mode == 'click') {
			return 'href="' + this.gethref(n) + '" onclick="return kkpager._clickhandler(' + n + ')"'
		}
		return 'href="' + this.getlink(n) + '"'
	},
	_clickhandler: function(n) {
		var res = false;
		if (this.click && typeof this.click == 'function') {
			res = this.click.call(this, n) || false
		}
		return res
	}
};