DIY jquery paging control (very simple and practical)_jquery

@charset "utf-";
* {
margin:px;
padding:px;
font-family:"微软雅黑";
font-size:px;
}
._ul {
float:left;
height:px;
display:block;
}
._ul li {
list-style-type:none;
height:px;
width:px;
border:px solid #eee;
cursor:pointer;
text-align:center;
line-height:px;
color:blue;
float:left;
margin: px;
}
._ul li:hover,._before:hover,._after:hover {
border:px solid #f;
background: #ffff;
}

.li-hover {
border:px solid #f;
background: #ffff;
}

._before {
width:px;
height:px;
border:px solid #eee;
float:left;
cursor:pointer;
text-align:center;
line-height:px;
color:blue;
margin: px;
}
._after {
width:px;
height:px;
border:px solid #eee;
float:left;
cursor:pointer;
text-align:center;
line-height:px;
color:blue;
margin: px;
}

.Hidden {
display:none;
}
._select {
border:px solid #fff !important;
color:black !important;
}
._left {
float:left;
margin-left:px;
}
._right {
float:right;
margin-right:px;
}

; (function ($, window, document, undefined) {
var isShow = function (ele,options) {
this.$element = ele,
this.defaults = {
maxpage: ,
count: ,
total: ,
float: 'right',
margin:'px',
getData:null
},
this.options = $.extend({}, this.defaults, options)
}
isShow.prototype={
showDiv:function(){
this.bindEvent();
},
showHtml:function(){
var _this = this, strHtml = "",count=Math.ceil(_this.options.total / _this.options.count);
strHtml += "<div class='"+(_this.options.float=='right'&#63;'_right':'_left')+"'><div class='_before Hidden'><上一页</div><ul class='_ul'>";
for (var i = ; i <= count ; i++) {
strHtml += "<li data-index='"+(i==&#63;'frist':i==count&#63;'last':'middle')+"' class='"+(i==&#63;'_select':'')+" "+(i>_this.options.maxpage&#63;'Hidden':'')+"'>"+i+"</li>";
}
strHtml += "</ul><div class='_after'>下一页></div></div>";
_this.$element.append(strHtml);
},
MoveIndex:function(index){
var _this = this, _index = this.options.maxpage, count = Math.ceil(_this.options.total / _this.options.count);
var middle = _index / ;
var curr = _this.$element.find("li");
if (count <= _index) {
$(curr).show();
} else {
var ftemp = ,ltemp=;
if (index < middle)
ftemp = (middle - index);
if (middle > count - index)
ltemp=(middle-(count-index));
$(curr).each(function () {
var currindex = parseInt($(this).text());
if (currindex > index - middle-ltemp && currindex <= parseInt(index) + parseInt(middle)+ftemp) {
$(this).show();
} else {
$(this).hide();
}
});
} 
},
WhichFind:function(status,_index){
var _this=this;
switch (status) {
case 'frist':
_this.$element.find("._before").hide();
_this.$element.find("._after").show();
break;
case 'last':
_this.$element.find("._after").hide();
_this.$element.find("._before").show();
break;
case 'middle':
_this.$element.find("div").show();
break;
}
_this.MoveIndex(_index);
_this.options.getData({ index: _index });
},
bindEvent:function(){
var _this = this;
_this.showHtml();
_this.$element.find("li").click(function () {
var status = $(this).data("index"), _index = $(this).text();
$(this).addClass("_select").siblings().removeClass("_select");
_this.WhichFind(status,_index);
});

_this.$element.find("._before").click(function () {
var status = $("._select").prev().data("index"), _index = $("._select").prev().text();
$("._select").prev().addClass("_select").siblings().removeClass("_select");
_this.WhichFind(status,_index);
});

_this.$element.find("._after").click(function () {
var status = $("._select").next().data("index"), _index = $("._select").next().text();
$("._select").next().addClass("_select").siblings().removeClass("_select");
_this.WhichFind(status,_index);
});
}
}
$.fn.FY = function (option) {
var fs = new isShow(this, option);
return fs.showDiv();
}
})(jQuery,window,document);