javascript Problem

Question

i dont know why its not working used to display data base in html webpage

  

 

function makeTable(data){

console.log(data);

var tbl_body = "";

$.each(data, function() {

var tbl_row = "";

$.each(this, function(k , v) {

tbl_row += "<td>"+v+"</td>";

})

tbl_body += "<tr>"+tbl_row+"</tr>";

})

return tbl_body;

}

function getEmployeeFilterOptions(){

var opts = [];

$checkboxes.each(function(){

if(this.checked){

opts.push(this.name);

}

});

return opts;

}

function updateEmployees(opts){

$.ajax({

type: "POST",

url: "submit.php",

dataType : 'json',

cache: false,

data: {filterOpts: opts},

success: function(records){

$('#employees tbody').html(makeTable(records));

}

});

}

var $checkboxes = $("input:checkbox");

$checkboxes.on("change", function(){

var opts = getEmployeeFilterOptions();

updateEmployees(opts);

});

$checkboxes.trigger("change");