jQuery checkbox not responding when I check it

I have that function:

$("#tabela tr").toggle(function(){
    $(this).addClass("zaznaczone");
    $(this).find(" :checkbox").attr("checked", "1");
},function(){
    $(this).removeClass("zaznaczone");
    $(this).find(" :checkbox").attr("checked", "");
});

and it's fine when i click on "tr" but when i click on checkbox this line response but checkbox not. It's mean checkobx after this operation is not checked.

i write bottom this code:

$("#tabela tr :checkbox").click(function(){
    if($(this).attr('checked')==''){
        alert("000000开发者_运维问答");
    }
    else{
        alert("111111111");
    }
});

and what happen. When i click on empty checkbox i see alert 1111111 and before press ok on alert popup checkbox is checked. After press ok checkbox is not checked and tr get class from code up. When i try uncheck checkbox i see this same alert 00000 and line "tr" is unset with code up

Your code work perfect for line and checkbox but when I try add this lines:

$(this).addClass("zaznaczone");
$(this).removeClass("zaznaczone");

then work that: When i click on line work that what it should, but when i click on checkbox then check it addClass dont work All code:

$('#tabela tr').bind('click',function(e){
       var cb = $(this).find(':checkbox');

       if(e.target !== cb[0]){
           if(cb.is(':checked')){
               cb.removeAttr('checked');
               $(this).removeClass("zaznaczone");}

           else{
               cb.attr('checked', 'checked');
               $(this).addClass("zaznaczone");}
       }
   });

I wasn't able to make this work with .toggle(), it will call .preventDefault() on it's own which just makes this task awesome for some reason. Maybe I'm just missing something, but the code below is just fine and works.

$(document).ready(function(){
   $('tr').bind('click',function(e){
       var cb = $(this).find(':checkbox');

       if(e.target !== cb[0]){
           if(cb.is(':checked'))
               cb.removeAttr('checked');
           else
               cb.attr('checked', 'checked');
       }
   });   
});