function BrowserCheck() {
	var b = navigator.appName;
	if (b == "Netscape") this.b = "NS";
	else if (b == "Microsoft Internet Explorer") this.b = "IE";
	else this.b = b;
	this.v = parseInt(navigator.appVersion);
	this.NS = (this.b == "NS" && this.v>=4);
	this.NS4 = (this.b == "NS" && this.v == 4);
	this.NS5 = (this.b == "NS" && this.v == 5);
	this.IE = (this.b == "IE" && this.v>=4);
	this.IE4 = (navigator.userAgent.indexOf('MSIE 4')>0);
	this.IE5 = (navigator.userAgent.indexOf('MSIE 5')>0);
	if (this.IE5 || this.NS5) this.VER5 = true;
	if (this.IE4 || this.NS4) this.VER4 = true;
	this.OLD = (! this.VER5 && ! this.VER4) ? true : false;
	this.min = (this.NS||this.IE);
}
is = new BrowserCheck();

function getImgXPos(imgElem) {
  if (is.NS4) return eval(imgID).y
  else {  
  	xPos = eval(imgElem).offsetLeft;
  	tempEl = eval(imgElem).offsetParent;
    	while (tempEl != null) {
    		xPos += tempEl.offsetLeft;
    		tempEl = tempEl.offsetParent;
    	}
  	return xPos;
  }
}

function getImgYPos(imgElem) {
  if (is.NS4) return eval(imgID).y
  else {
  	yPos = eval(imgElem).offsetTop;
  	tempEl = eval(imgElem).offsetParent;
  	while (tempEl != null) {
    		yPos += tempEl.offsetTop;
    		tempEl = tempEl.offsetParent;
    	}
  	return yPos;
	}
}

timer = null;
d = null;

function pokazuvel() {
  d.visibility = 'visible';
  clearTimeout(timer);	
}

function otmuvel() {
  clearTimeout(timer);		
}

function uvel(s, n, t) {
  d = (is.VER5) ? document.getElementById(n).style : (is.NS) ? document.layers[n] : document.all[n].style;
  d.left = getImgXPos(s)-75;
  if (t==1)
    d.top  = getImgYPos(s)-100;  
  else
    d.top  = getImgYPos(s)-10;  
    d.visibility = 'visible';
  timer = setTimeout("pokazuvel()", 100);
}

function uvelbol(s, n, t) {
  d = (is.VER5) ? document.getElementById(n).style : (is.NS) ? document.layers[n] : document.all[n].style;
  d.left = getImgXPos(s);
  if (t==1)
    d.top  = getImgYPos(s)-100;  
  else
    d.top  = getImgYPos(s);  
  d.visibility = 'visible';
}

function uvelout(n) {
  clearTimeout(timer);	
  var d = (is.VER5) ? document.getElementById(n).style : (is.NS) ? document.layers[n] : document.all[n].style;
  d.visibility = 'hidden';
}