var img_path = "/images/";
var img_menu_dir = "menu";
var img_ext = ".gif";
var active_img_suffix = "A";



function chkref(){

//	if (window.history.go(-1)) {
//document.getElementById('id').value = '0';
//		}
//alert(location.href);
}


function preloadImg(file){
  var image = new Image();
  image.src = img_path + img_menu_dir + "/" + file + img_ext;
}

function show(e){
  var el = window.event ? window.event.srcElement : e.currentTarget;
  var str = img_menu_dir + "\\/(\\d+)" + img_ext;
  var re = new RegExp(str, "i");
  el_src = el.src;
  r = el_src.match(re);
  if (r) el.src = img_path + img_menu_dir + "/" + r[1] + active_img_suffix + img_ext;
}

function hide(e){
  var el = window.event ? window.event.srcElement : e.currentTarget;
  var str = img_menu_dir + "\\/(\\d+)" + active_img_suffix + img_ext;
  var re = new RegExp(str, "i");
  el_src = el.src;
  r = el_src.match(re);
  if (r) el.src = img_path + img_menu_dir + "/" + r[1] + img_ext;
}

function init(){
  if (document.images){
    var img_item = img_item_src = r = null;
    var str = img_menu_dir + "\\/(\\d+)" + img_ext;
    var re = new RegExp(str, "i");
    for (var i = 0; (img_item = document.getElementsByTagName("img").item(i)); i++){
      img_item_src = img_item.src;
      r = img_item_src.match(re);
      if (!r) continue; // !!! 
      preloadImg(r[1] + active_img_suffix);
      if (img_item.addEventListener){
        img_item.addEventListener("mouseover", show, false);
        img_item.addEventListener("mouseout", hide, false);
      }else if (img_item.attachEvent){
        img_item.attachEvent("onmouseover", show);
        img_item.attachEvent("onmouseout", hide);
      }
    }
  }
}

var root = window.addEventListener || window.attachEvent ? window : document.addEventListener ? document : null;
if (root){
  if (root.addEventListener) root.addEventListener("load", init, false);
  else if (root.attachEvent) root.attachEvent("onload", init);
}






window.onerror = null;

tooltip = {


	attr_name: "tooltip", 
	blank_text: "(в новом окне)", 
	newline_entity: "  ",
	max_width: 0, 
	delay: 50,
	

	t: document.createElement("DIV"),
	c: null,
	g: false,

	m: function(e){
		if (tooltip.g){
			oCanvas = document.getElementsByTagName(
			(document.compatMode && document.compatMode == "CSS1Compat") ? "HTML" : "BODY"
			)[0];
			x = window.event ? event.clientX + oCanvas.scrollLeft : e.pageX;
			y = window.event ? event.clientY + oCanvas.scrollTop : e.pageY;
			tooltip.a(x, y);
		}
	},

	d: function(){
		tooltip.t.setAttribute("id", "tooltip");
		document.body.appendChild(tooltip.t);
		a = document.all ? document.all : document.getElementsByTagName("*");
		aLength = a.length;
		for (var i = 0; i < aLength; i++){

			if (!a[i]) continue;

			tooltip_title = a[i].getAttribute("title"); // returns form object if IE & name="title"; then IE crashes; so...
			if (tooltip_title && typeof tooltip_title != "string") tooltip_title = "";

			tooltip_alt = a[i].getAttribute("alt");
			tooltip_blank = a[i].getAttribute("target") && a[i].getAttribute("target") == "_blank" && tooltip.blank_text;
			if (tooltip_title || tooltip_blank){
				a[i].setAttribute(tooltip.attr_name, tooltip_blank ? (tooltip_title ? tooltip_title + " " + tooltip.blank_text : tooltip.blank_text) : tooltip_title);
				if (a[i].getAttribute(tooltip.attr_name)){
					a[i].removeAttribute("title");
					if (tooltip_alt && a[i].complete) a[i].removeAttribute("alt");
					tooltip.l(a[i], "mouseover", tooltip.s);
					tooltip.l(a[i], "mouseout", tooltip.h);
				}
			}else if (tooltip_alt && a[i].complete){
				a[i].setAttribute(tooltip.attr_name, tooltip_alt);
				if (a[i].getAttribute(tooltip.attr_name)){
					a[i].removeAttribute("alt");
					tooltip.l(a[i], "mouseover", tooltip.s);
					tooltip.l(a[i], "mouseout", tooltip.h);
				}
			}
			if (!a[i].getAttribute(tooltip.attr_name) && tooltip_blank){
				//
			}
		}
		document.onmousemove = tooltip.m;
		window.onscroll = tooltip.h;
		tooltip.a(-99, -99);
	},

	s: function(e){
		d = window.event ? window.event.srcElement : e.target;
		if (!d.getAttribute(tooltip.attr_name)) return;
		s = d.getAttribute(tooltip.attr_name);
		if (tooltip.newline_entity){
			s = s.replace(/\&/g,"&amp;");
			s = s.replace(/\</g,"&lt;");
			s = s.replace(/\>/g,"&gt;");
			s = s.replace(eval("/" + tooltip.newline_entity + "/g"), "<br />");
			tooltip.t.innerHTML = s;
		}else{
			if (tooltip.t.firstChild) tooltip.t.removeChild(tooltip.t.firstChild);
			tooltip.t.appendChild(document.createTextNode(s));
		}
		tooltip.c = setTimeout("tooltip.t.style.visibility = 'visible';", tooltip.delay);
		tooltip.g = true;
	},

	h: function(e){
		tooltip.t.style.visibility = "hidden";
		if (!tooltip.newline_entity && tooltip.t.firstChild) tooltip.t.removeChild(tooltip.t.firstChild);
		clearTimeout(tooltip.c);
		tooltip.g = false;
		tooltip.a(-99, -99);
	},

	l: function(o, e, a){
		if (o.addEventListener) o.addEventListener(e, a, false); // was true--Opera 7b workaround!
		else if (o.attachEvent) o.attachEvent("on" + e, a);
			else return null;
	},

	a: function(x, y){
		oCanvas = document.getElementsByTagName(
		(document.compatMode && document.compatMode == "CSS1Compat") ? "HTML" : "BODY"
		)[0];
		
		w_width = oCanvas.clientWidth ? oCanvas.clientWidth + oCanvas.scrollLeft : window.innerWidth + window.pageXOffset;
		w_height = window.innerHeight ? window.innerHeight + window.pageYOffset : oCanvas.clientHeight + oCanvas.scrollTop;

		tooltip.t.style.width = ((tooltip.max_width) && (tooltip.t.offsetWidth > tooltip.max_width)) ? tooltip.max_width + "px" : "auto";
		
		t_width = tooltip.t.offsetWidth;
		t_height = tooltip.t.offsetHeight;

		tooltip.t.style.left = x + 8 + "px";
		tooltip.t.style.top = y + 8 + "px";
		
		if (x + t_width > w_width) tooltip.t.style.left = w_width - t_width + "px";
		if (y + t_height > w_height) tooltip.t.style.top = w_height - t_height + "px";
	}
}

var root = window.addEventListener || window.attachEvent ? window : document.addEventListener ? document : null;
if (root){
	if (root.addEventListener) root.addEventListener("load", tooltip.d, false);
	else if (root.attachEvent) root.attachEvent("onload", tooltip.d);

if (root.addEventListener) root.addEventListener("load", chkref, false);
else if (root.attachEvent) root.attachEvent("onload", chkref);


}