function c_top_menu_app() 
{
    this.language_mouse_over = function( element )
    {
        if( element.className == 'top_menu_language_content' )
        {
            element.className = 'top_menu_language_content_hover';
        }
        else
        {
            element.className = 'top_menu_language_content_selected_hover';
        }
    }
    this.language_mouse_out = function( element )
    {
        if( element.className == 'top_menu_language_content_hover' )
        {
            element.className = 'top_menu_language_content';
        }
        else
        {
            element.className = 'top_menu_language_content_selected';
        }
    }
    this.item_mouse_over = function( element )
    {
        if( element.className == 'top_menu_item_content' )
        {
            element.className = 'top_menu_item_content_hover';
        }
        else
        {
            element.className = 'top_menu_item_content_selected_hover';
        }
    }
    this.item_mouse_out = function( element )
    {
        if( element.className == 'top_menu_item_content_hover' )
        {
            element.className = 'top_menu_item_content';
        }
        else
        {
            element.className = 'top_menu_item_content_selected';
        }
    }
    this.language_click = function( language )
    {
        var arr = dog( 'top_menu_menu_arr_string' ).value.split( const_delimiter );
        //alert( arr );
        var menu = 'index';
        for( i = 0; i < arr.length; i++ )
        {
            if( dog( 'top_menu_menu_' + arr[i] ).className == "top_menu_item_content_selected" || 
                dog( 'top_menu_menu_' + arr[i] ).className == "top_menu_item_content_selected_hover" )
            {
                menu = arr[i];
            }
        }
        $.ajax({
            type: "POST",
            url: "top_menu.php",
            data: "language=" + language +
                  "&top_menu=" + menu,
            success: function( msg )
            {
                //alert( msg );
                dog( 'top_menu' ).innerHTML = msg;
                content_app.get_content();
            }
         });
    }
    this.menu_click = function( menu )
    {
        var arr = dog( 'top_menu_language_arr_string' ).value.split( const_delimiter );
        var language = 'nl';
        for( i = 0; i < arr.length; i++ )
        {
            if( dog( 'top_menu_language_' + arr[i] ).className == "top_menu_language_content_selected" || 
                dog( 'top_menu_language_' + arr[i] ).className == "top_menu_language_content_selected_hover" )
            {
                language = arr[i];
            }
        }
        
        $.ajax({
            type: "POST",
            url: "top_menu.php",
            data: "language=" + language +
                  "&top_menu=" + menu,
            success: function( msg )
            {
                //alert( msg );
                dog( 'top_menu' ).innerHTML = msg;
                content_app.get_content();
            }
         });
    }
}