browser_name = navigator.appName;
browser_version = parseFloat(navigator.appVersion);

if (browser_name == "Netscape" && browser_version >= 3.0) { browser_ok = 'true'; }
else if (browser_name == "Microsoft Internet Explorer" && browser_version >= 3.0) { browser_ok = 'true'; }
else { browser_ok = 'false'; }



function over(img,p1) {
   if (browser_ok == 'true') {
       document.images[img].src = p1;
   }
}

function out(img,p2) {
   if (browser_ok == 'true') {
       document.images[img].src = p2;
   }
}


function init() {
IE = (document.all)
NC = (document.layers)
Opera = (document.getElementById)
}

function hiddenLayer(aa) {
var layname=aa
init();
if(IE) eval('document.all[layname].style.visibility = "hidden"')
if(NC) eval('document.layers[layname].visibility = "hidden"')
if(Opera) eval('document.getElementById(layname).style.visibility = "hidden"')
}

function showLayer(bb) {
var layname=bb
init();
if(IE) eval('document.all[layname].style.visibility = "visible"')
if(NC) eval('document.layers[layname].visibility = "visible"')
if(Opera) eval('document.getElementById(layname).style.visibility = "visible"')
}

function go1() {
if (document.selecter1.select1.options[document.selecter1.select1.selectedIndex].value != "none") {
parent.window.frames[2].location.href = document.selecter1.select1.options[document.selecter1.select1.selectedIndex].value;
parent.window.frames[1].location.href = "menu.html"
		}
	}

//---------------------------

opera = (navigator.userAgent.indexOf('Opera') >= 0)? true : false;
dom = (document.getElementById)? true : false;
ie4 = (document.all && !dom)? true : false;
nn4 = (document.layers)? true : false;

function showElem(elemId) {
  if (dom) document.getElementById(elemId).style.visibility = "visible";
    else if (ie4) document.all[elemId].style.visibility = "visible";
      else if (nn4) document.layers[elemId].visibility = "show";
 
 return elemId;      
}

function hideElem(elemId) {
  if (dom) document.getElementById(elemId).style.visibility = "hidden";
    else if (ie4) document.all[elemId].style.visibility = "hidden";
      else if (nn4) document.layers[elemId].visibility = "hide";
}


function relPosX(which) {
  if (nn4) {
    return document.layers[which].pageX;
  } else {
    var elem = (dom)? document.getElementById(which) : document.all[which];
    var pos = elem.offsetLeft;
    while (elem.offsetParent != null) {
      elem = elem.offsetParent;
      pos += elem.offsetLeft;
      if (elem.tagName == 'BODY') break;
    } return pos;
  }
}

function relPosY(which) {
  if (nn4) {
    return document.layers[which].pageY;
  } else {
    var elem = (dom)? document.getElementById(which) : document.all[which];
    var pos = elem.offsetTop;
    while (elem.offsetParent != null) {
      elem = elem.offsetParent;
      pos += elem.offsetTop;
      if (elem.tagName == 'BODY') break;
    } return pos;
  }
}


function createNN4Leer(leerId, firstLeer, secondLeer) { if (nn4) {
  document.layers[leerId] = new Layer(document.layers[secondLeer].pageX -
    document.layers[firstLeer].pageX);
  document.layers[leerId].left = document.layers[firstLeer].pageX;
  document.layers[leerId].top = document.layers[secondLeer].pageY;
  document.layers[leerId].visibility = "show";
}}

function replaceElemContents(elemId, contents) {
  if (dom && !opera) document.getElementById(elemId).innerHTML = contents;
    else if (ie4 && !opera) document.all[elemId].innerHTML = contents;
      else if (nn4) {
        if (!document.layers[elemId])
          createNN4Leer(elemId, elemId+'LeftAnc', elemId+'RightAnc');
        document.layers[elemId].document.open();
        document.layers[elemId].document.write(contents);
        document.layers[elemId].document.close();
      }
}

function createReplacementElem(elemId, alternativeText) {
  if ((dom && !opera) || (ie4 && !opera))
      document.write('<div id="'+elemId+'">Подождите загрузки страницы...<\/div>');
    else if (nn4)
        document.write('<table cellpadding=0 cellspacing=0 border=0 width=100%>'+
        '<td width=100%><ilayer id="'+elemId+'LeftAnc"><br><\/ilayer><\/td>'+
        '<td align=right><ilayer id="'+elemId+'RightAnc"><br><\/ilayer><\/td><\/table>');
      else if (alternativeText) document.write(alternativeText);
        else document.write('Ваш браузер не поддерживает динамическую замену содержимого элементов!');
}


var lastShown;
var elemId;

function jumpToLay(thing, set) {

var Xcoord = relPosX(thing);
var Ycoord = relPosY(thing);
var Wcoord = -5;
var Hcoord = 20;

if (dom) {
     document.getElementById(set).style.top=Ycoord+Hcoord;
     document.getElementById(set).style.left=Xcoord+Wcoord;
     }
else if (ie4) {
     document.all[set].style.top=Ycoord+Hcoord;
     document.all[set].style.left=Xcoord+Wcoord;
     }
else if (nn4) {
     document.layers[set].top=Ycoord+Hcoord;
     document.layers[set].left=Xcoord+Wcoord;
     }
else window.alert("У вас очень странный броузер! You have a very strange browser!");	

if (lastShown) {
	hideElem(lastShown);
	clearTimeout(jumper);
	lastShown = false;
	}
	
lastShown = showElem(set);
jumper = setTimeout("hideElem(lastShown)", 20000);
}


function jumpOn() {
if (lastShown) clearTimeout(jumper);
}

function jumpOff(elemId) {
element = elemId;
jumper = setTimeout("hideElem(element)", 200);
}