function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}


function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}


function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}


function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}


function MM_reloadPage(init) {  //reloads the window if Nav4 resized
  if (init==true) with (navigator) {if ((appName=="Netscape")&&(parseInt(appVersion)==4)) {
    document.MM_pgW=innerWidth; document.MM_pgH=innerHeight; onresize=MM_reloadPage; }}
  else if (innerWidth!=document.MM_pgW || innerHeight!=document.MM_pgH) location.reload();
}
MM_reloadPage(true);

// Класс меню
function pMenu()
{
  this.top = 0;
  this.left = 0;
  this.visibility = "hidden";
}


  var mMenu = new Array();
	mMenu["archive_menu"] = new pMenu();
	mMenu["materials_menu"] = new pMenu();

  // Прячем ВСЕ меню
  function ResetMenu()
  {
		for(var id in mMenu)
		{
			mMenu[id].visibility = "hidden";
		}
		StopIt();
  }

  // Прячем меню
  function StopIt()
  {
  	var div=null;
		for(var id in mMenu)
		{
 			eval("div = document.all."+id+";");
			div.style.visibility = mMenu[id].visibility;
		}
  }

  function SetN(id)
  {
    mMenu[id].visibility = "visible";
  }

  // Спрятать, если в течение заданного времени опять не будем "над ним"
  function HideShow(id)
  {
 		mMenu[id].visibility = "hidden"; 
    setTimeout("StopIt()",100);
  }

  // Показать меню
  function ShowSub(id,top)
  {
		ResetMenu();
  	var div = null;
    eval("div = document.all."+id+";");
    if(!div.style.top) div.style.top = top;
    if(!div.style.left) div.style.left = 140;
    div.style.visibility = 'visible';
  }