$("document").ready( function() {
    $(document).pngFix(),
     
    $("#login_link, #login_form_close").bind("click", function() {
        $("#login_form").toggleClass("hidden");
        return false;
    }),

    $("#user_login, #user_password").bind("keyup", function() {
        if ($("#user_email").val() != '' && $("#user_password").val() != "") {
            $("#login_submit").removeAttr("disabled");
            $("#login_submit").attr("src", "images/design/enter.gif");
        } else {
            $("#login_submit").attr("disabled", "disabled").attr("src", "images/design/nenter.gif");
        }
    }),

    $("#login_submit").bind("click", function() {
        $("#login_form_progress").removeClass("hidden");
        $("#login_form_error").addClass("hidden");
        functions.validate(this.form);
        return false;
    }),

    $("#search_text").focus(function() {
        $(this).val('');
    }).blur(function() {
        if ($(this).val() == '') {
            $(this).val('Поиск по сайту');
        }
    }),

    $(".text, .text_warning").focus( function() {
        $(this).css("border", "1px solid #2AA4F0");
    }).blur( function() {
        $(this).removeAttr("style");
    }),

    $("#register_birth_day, #register_birth_year").keyup( function() {
        if (functions.isNumeric(this.value)) {
            this.value = "";
        }
    }).blur( function() {
        if (functions.isNumeric(this.value)) {
            this.value = "";
        }
    }),

    $("#menu div").bind("click", function() {
        if ($(this).children("span").hasClass("marker_up")) {
            $(this).children("span").removeClass("marker_up");
            $(this).children("span").addClass("marker_down");
        } else {
        	$(this).children("span").removeClass("marker_down");
        	$(this).children("span").addClass("marker_up");
        }


        if ($(this).next().hasClass("sub")) {
            $(this).next().slideToggle("normal");
        }
    }),

    $("#search_submit").bind("click", function() {
        $("#search_form").submit();
        return false;
    })


});

var functions = {

    isNumeric: function(str) {
        var validSymbols = "0123456789";
        var symbol;
        var result = false;

        if (str.length == 0) return false;

        for (i = 0; i < str.length && result == false; i++) {
            symbol = str.charAt(i);
            if (validSymbols.indexOf(symbol) == -1) {
                result = true;
            }
        }

        return result;
    },

    validate : function(form) {
                   url = form.action;
                   this.ajax(form, url);
                   return false;
               },

    ajax : function(form, url) {
               var params = $(form).serialize();
               var self = this;
               $.ajax({type: "POST",
                       url: url,
                       data: params,
                       dataType: "json",
                       error: function(a, b, c) {
                           alert(a.responseText);
                       },
                       success: function(data){
                           var arr = new String(data.callback).split(",");
                           var i = 0;
                           do {
                               eval("self." + arr[i] + "(data);");
                               i++;
                           } while(i < arr.length);
                       }
                   });
               return true;
           },

    login : function(data) {
              window.location.href = data.content;
          },

    loginError : function(data) {
                     $("#login_form_progress").addClass("hidden");
                     $("#login_form_error").removeClass("hidden");
                 }
}