$.pageAjax=function(option){
    
    var op={
        type:"post",
        DataType:'json'
    },fn={
    	beforeSend:function(){
    		var el=$('div.page-loading');
    	    if(!el[0]){
    	        $('body').append('<div class="page-loading" data-times="1" style="display:block;"><img src="../img/page_loading.gif" width="64" height="64"></div>');
    	    }else{
    	        showOrHide(el,'+');
    	    }
    	    el.fadeIn(100);
    	},	
        success:function(res,mes){
            showOrHide($('body').find('div.page-loading'),'-');
            if(typeof option.success==='function'){
                option.success(res,mes);
            }
        },
        error:function(XHRObj,err,ext){
            showOrHide($('body').find('div.page-loading'),'-');
            if(typeof option.error==='function'){
                option.error(XHRObj,err,ext);
            }
        }
    }
    var opt=$.extend({},op,option,fn);
    $.ajax(opt);
}
function showOrHide(el,p){
    var num=el.attr('data-times');
    if(isNaN(num)){num=0;}
    if(p=='+'){
        el.attr('data-times',++num);
    }else if(p=='-'){
        el.attr('data-times',--num);
        if(num<=0){
            el.fadeOut(100);
        }
    }
}
;(function($){
    $.fn.initPage=function(pobj){
        var option=JSON.parse(JSON.stringify(pobj));
        this.css('display','none');
        var op={
            pageSize:14,
            curPage:1
        },fn=pobj.ajax.success,el=this;
        var opt=$.extend({},op,option);
        opt.ajax.data[opt.resKey.pageSize]=opt.pageSize;
        opt.ajax.data[opt.resKey.curPage]=opt.curPage;
        opt.ajax.success=function(res,mes){
            fn(res,mes);
            var countPages=1;
            if(!!res[opt.resKey.sumPage]){
                countPages=Math.ceil(res[opt.resKey.sumPage]/opt.pageSize);
            }
            el.html(creatHtml(countPages,opt.curPage));
            el.fadeIn(160);
            initEvent(el,pobj,countPages);
        }
        $.pageAjax(opt.ajax);
    }
    var creatHtml=function(count,cur){
        cur=parseFloat(cur);
        var str='<a href="javascript:;" class="prev page-btn '+(cur==1?'dis':'')+'"></a>';
        if(count<7){
            for(var i=1;i<=count;i++){
                str+='<em class="page-btn '+(cur==i?'cur':'')+'">'+i+'</em>';
            }
        }else{
            if(cur<3){
                str+='<em class="page-btn '+(cur==1?'cur':'')+'">'+1+'</em>';
                str+='<em class="page-btn '+(cur==2?'cur':'')+'">'+2+'</em>';
                str+='<em class="page-btn">'+3+'</em>';
                str+='<p class="page-btn">...</p>';
                str+='<em class="page-btn">'+count+'</em>';
            }else if(cur>(count-2)){
                str+='<em class="page-btn">'+1+'</em>';
                str+='<p class="page-btn">...</p>';
                str+='<em class="page-btn">'+(count-2)+'</em>';
                str+='<em class="page-btn '+(cur==(count-1)?'cur':'')+'">'+(count-1)+'</em>';
                str+='<em class="page-btn '+(cur==count?'cur':'')+'">'+count+'</em>';
            }else{
                str+='<em class="page-btn">'+1+'</em>';
                str+='<p class="page-btn '+(cur>3?'':'none')+'">...</p>';
                str+='<em class="page-btn">'+(cur-1)+'</em>';
                str+='<em class="page-btn cur">'+(cur)+'</em>';
                str+='<em class="page-btn">'+(cur+1)+'</em>';
                str+='<p class="page-btn '+(cur<(count-2)?'':'none')+'">...</p>';
                str+='<em class="page-btn">'+count+'</em>';
            }
        }
        str+='<a href="javascript:;" class="next page-btn '+(cur==count?'dis':'')+'"></a>';
        var isms=navigator.userAgent.toLowerCase();
        if(isms.indexOf('msie 8.0')!==-1){
            str+='<input type="text" value="跳转">';
        }else{
            str+='<input type="text" placeholder="跳转">';
        }
        return str;
    }
    var initEvent=function(el,opt,max){
        //直接点击页数
        el.find('em.page-btn').off('click').on('click',function(){
            opt.curPage=$(this).html();
            el.initPage(opt);
        });
        //点击上一页下一页
        el.find('a.page-btn').off('click').on('click',function(){
            var type=$(this).hasClass('prev')?-1:$(this).hasClass('next')?1:false;
            if($(this).hasClass('dis')||type===false){return false;}
            opt.curPage=parseFloat(el.find('em.page-btn.cur').html())+type;
            el.initPage(opt);
        });
        //输入直接跳转
        el.find('input[type=text]').off('keyup').on('keyup',function(event){
            var v=$(this).val();
            if(v==''||v===undefined){return false;}
           if(event.keyCode==13){
                if(v>max){v=max}
                if(v<1){v=1}
                v=Math.floor(parseFloat(v));
                opt.curPage=v;
                el.initPage(opt);
           }else if(!/[0123456789]/.test(event.key)){
               var r=Math.floor(parseFloat(v));
               if(!r||isNaN(r)){r=""}
                $(this).val(r);
           }
        });
        //输入直接跳转
        el.find('input[type=text]').off('blur').on('blur',function(event){
            var v=$(this).val();
            if(v==''||v===undefined){return false;}
            v=Math.floor(parseFloat(v));
            if(v>max){v=max}
            if(v<1){v=1}
            opt.curPage=v;
            el.initPage(opt);
        });
        el.find('input[type=text]').off('focus').on('focus',function(event){
            var v=$(this).val();
            if(isNaN(v)){
                $(this).val('');
            }
        });
    }
})(jQuery);