Навигация

$(document).ready(function(){
 $('#main_menu li').click().addClass('active');
})

$(document).ready(function(){
    $('#main_menu li').click(function(){$('#main_menu li').removeClass('active');$(this).addClass('active')});
})

$(document).ready(function(){
   $('#main_menu li  a').click(function(e){
      $('#main_menu li  a').removeClass('active');
       $(this).addClass('active');
      e.preventDefault();
 
   });
})

$("li").parent("a.active").css("background", "red");

<script>
$(document).ready(function(){
   $('#box-category li  a').click(function(e){
      $('#box-ccategory li  a').removeClass('active');
       $(this).addClass('active');
      e.preventDefault();
 
   });
})
</script>

Uncaught ReferenceError: highlight is not defined index.php?route=product/category&path=59:62
Uncaught TypeError: Object function ( selector, context ) {
        // The jQuery object is actually just the init constructor 'enhanced'
        return new jQuery.fn.init( selector, context, rootjQuery );
    } has no method 'cookie' index.php?route=product/category&path=59:239
Uncaught TypeError: Object [object Object] has no method 'live' common.js:30
Uncaught TypeError: Object [object Object] has no method 'cycle'

<script>
$(document).ready(function(){
$("li").parent("a.active").css("background", "red");
})
</script>

$(document).ready(function(){
alert('WORKING');
})