var g_speed_brake = 14;
var g_step_on_finish = 2;
var g_left_section_interval_id;
var g_delay_move = 1;
var g_move_left_section = true;
var g_orig_move_left_section = g_move_left_section;
var g_left_section;
var g_destination_top = 0;
var g_left_section_offset_top = 0;

window.addEventListener("load", init_admin_login);
window.addEventListener("load", init_move_left_section);

window.addEventListener("scroll", js_set_move_left_section);

window.addEventListener("resize", init_move_left_section);

function init_admin_login() {

    var elem = document.getElementById("id_txt_admin_login");

    if (elem) {
        elem.select();
        elem.focus();
    }
}

function my_prevent_scrolling(event, input_elem) {

    document.onkeydown = function(event){

        var evt = event ? event : window.event ? window.event : "";

		if(evt && evt.keyCode == 32){
			evt.preventDefault();
		}
	};
}

function toggle_layer(layer_id, this_elem, new_text, old_text, display_style) {

    if (!layer_id) {
        alert("Error 4");
        return;
    }
    
    var my_layer = document.getElementById(layer_id);
    
    if (!my_layer) {
        alert("Error 11");
        return;
    }
    
    var is_set_to_be_visible = true;
    var current_display_style = my_layer.style.display;
    
    if (!current_display_style || current_display_style == "none") {
        is_set_to_be_visible = false;
    }
    
    if (!is_set_to_be_visible) {

        my_layer.style.display = display_style;
        
        if (this_elem) {

            if (new_text) {
                this_elem.innerHTML = new_text;
            }
        }
    }
    else {
        my_layer.style.display = "none";
        
        if (this_elem) {

            if (old_text) {
                this_elem.innerHTML = old_text;
            }
        }
    }
}

function toggle_submenu(this_submenu_id, this_icon_div_id) {
  
    var display_style = "block";
    var old_class_name = "dropdown_icon";
    var new_class_name = "dropdown_icon dropdown_icon_selected";

    if (!this_submenu_id) {
        alert("Error 48");
        return;
    }

    var this_submenu = document.getElementById(this_submenu_id);

    if (!this_submenu) {
        alert("Error 55");
        return;
    }

    var this_icon_div = document.getElementById(this_icon_div_id);

    if (!this_icon_div) {
        alert("Error 66");
        return;
    }
    
    var last_opened_submenu_id = toggle_submenu.last_opened_submenu_id;
    var last_opened_icon_div_id = toggle_submenu.last_opened_icon_div_id;
    
    if (typeof last_opened_submenu_id != "undefined") {

        var last_opened_submenu = document.getElementById(last_opened_submenu_id);
        
        if (last_opened_submenu.id != this_submenu.id) {
            
            last_opened_submenu.style.display = "none";
        }
    }
    
    toggle_submenu.last_opened_submenu_id = this_submenu_id;
    
    if (typeof last_opened_icon_div_id != "undefined") {

        var last_opened_icon_div = document.getElementById(last_opened_icon_div_id);

        if (last_opened_icon_div.id != this_icon_div.id) {

            last_opened_icon_div.className = old_class_name;
        }
    }

    toggle_submenu.last_opened_icon_div_id = this_icon_div_id;

    var is_set_to_be_visible = true;
    var current_display_style = this_submenu.style.display;

    if (!current_display_style || current_display_style == "none") {
        is_set_to_be_visible = false;
    }

    if (!is_set_to_be_visible) {

        this_submenu.style.display = display_style;
        this_icon_div.className = new_class_name;
        toggle_submenu.last_opened_submenu_id = this_submenu_id;
    }
    else {

        this_submenu.style.display = "none";
        this_icon_div.className = old_class_name;
        toggle_submenu.last_opened_submenu_id = undefined;
    }
}

function toggle_top_submenu(column_offset, show) {

    var column_id = "id_top_submenu_column_" + column_offset;
    var content_wrapper_id = "id_top_submenu_column_content_wrapper_" + column_offset;
    var column_separator_left_id = "id_top_submenu_column_separator_" + (column_offset - 1);
    var column_separator_right_id = "id_top_submenu_column_separator_" + column_offset;

    var display_style = "none";
    var visibility_style = "hidden";
    
    if (show) {
        display_style = "block";
        visibility_style = "visible";
    }

    var column_div = document.getElementById(column_id);
    var content_wrapper_div = document.getElementById(content_wrapper_id);
    var column_separator_left_div = document.getElementById(column_separator_left_id);
    var column_separator_right_div = document.getElementById(column_separator_right_id);
    

    if (column_div) {
        column_div.style.visibility = visibility_style;
    }
    
    if (content_wrapper_div) {
        content_wrapper_div.style.display = display_style;
    }
    
    if (column_separator_left_div) {
        column_separator_left_div.style.visibility = visibility_style;
    }
    
    if (column_separator_right_div) {
        column_separator_right_div.style.visibility = visibility_style;
    }
}

function make_rand(bottom, top) {
    bottom = parseInt(bottom);
    top = parseInt(top);

    if (bottom > top) {
        tmp_top = top;
        top = bottom;
        bottom = tmp_top;
    }
    with (Math) {
        return floor(random() * (top - bottom + 1)) + bottom;
    }
}

function make_another_captcha(img) {

    var img_src = window.location.href;
    var pos_qmark = img_src.indexOf("?");
    
    if (pos_qmark != -1) {
        img_src = img_src.substring(0, pos_qmark);
    }

    img.src = img_src + "?captcha=" + make_rand(1, 999999);
    
    return false;
}

function js_htmlspecialchars(text) {
    var map = {
        '&': '&',
        '<': '&lt;',
        '>': '&gt;',
        '"': '&quot;',
        "'": '&#039;'
    };

  return text.replace(/[&<>"']/gi, function(t) { return map[t]; });
}

function js_special_to_br(text) {

    return text

        .replace(/&lt;br&gt;/gi, "<br>")
        .replace(/&lt;br \/&gt;/gi, "<br />");
}

function get_offset_top(elem) {

    var my_tagname = "";
    
    var top_off = 0;

    while ((typeof(elem) == "object") && (typeof(elem.tagName) != "undefined")) {

        top_off += elem.offsetTop;
        
        my_tagname = elem.tagName.toLowerCase();

        if (my_tagname == "body") {

            break;
        }

        if (typeof(elem) == "object") {

            if (typeof(elem.offsetParent )== "object") {

                elem = elem.offsetParent;
            }
        }
    }

    return top_off;
}

function get_scroll_top() {

    return Math.max(document.documentElement.scrollTop, document.body.scrollTop);
}

function init_move_left_section() {

    g_left_section = document.getElementById("id_left_boxes_wrapper");
    
    if (!g_left_section) {

        return;
    }
    
    g_left_section.style.top = "0px";
        
    g_left_section_offset_top = get_offset_top(g_left_section);
    
    if (window.innerWidth > 500) {

        if (g_orig_move_left_section) {

            g_move_left_section = true;
        }
        
        js_set_move_left_section();
    }
    else {

        if (g_left_section_interval_id) {

            clearInterval(g_left_section_interval_id);

            g_left_section_interval_id = null;
        }

        g_left_section.style.top = "0px";

        g_move_left_section = false;
    }
}

function js_move_left_section(elem, dest_top, direction) {

    var curr_top = parseInt(elem.style.top);

    if (direction == "down") {

        if (curr_top < dest_top) {

            var step = parseInt((dest_top - curr_top) / g_speed_brake);

            if (step < g_step_on_finish) {

                step = 1;
            }

            elem.style.top = (curr_top + step) + "px";
        }
        else {

            clearInterval(g_left_section_interval_id);

            g_left_section_interval_id = null;

            setTimeout("js_set_move_left_section()", g_delay_move);
        }
    }
    else {

        if (curr_top > dest_top) {

            var step = parseInt((curr_top - dest_top) / g_speed_brake);

            if (step < g_step_on_finish) {

                step = 1;
            }

            elem.style.top = (curr_top - step) + "px";
        }
        else {

            clearInterval(g_left_section_interval_id);

            g_left_section_interval_id = null;

            setTimeout("js_set_move_left_section()", g_delay_move);
        }
    }
}

function js_set_move_left_section() {

    var scroll_top = get_scroll_top();

    if (g_move_left_section && g_left_section && !g_left_section_interval_id) {

        var left_orig_top = parseInt(g_left_section.style.top);

        g_destination_top = scroll_top - g_left_section_offset_top;

        if (g_destination_top < 0) {

            g_destination_top = 0;
        }
        if (left_orig_top < g_destination_top) {

            g_left_section_interval_id = setInterval("js_move_left_section(g_left_section, g_destination_top, 'down')", 10);
        }
        else {

            g_left_section_interval_id = setInterval("js_move_left_section(g_left_section, g_destination_top, 'up')", 10);
        }
    }
}