function browser() {
  ns4 = (document.layers)? true:false
  ie4 = (document.all)? true:false

  if(ns4){
  location = ""
  }
  else {
  location = ""
  }
}


function open_window(pic, w, h) {
  if (pic == 'oldpage'){pic = 'images/old_page.jpg'};
  enlarge = window.open('pictures_pop.html?picture=' + pic, 'PicWin', 'width=' + w + ', height=' + h + ', scrollbars=no, menubar=no, status=no, toolbar=no, location=no, resize=no, resizable=no');
}

function openPicWin(fileName, w, h) {
  var pic_window = window.open(fileName, 'PicWin', 'width=' + w + ', height=' + h + ', scrollbars=no, menubar=no, status=no, toolbar=no, location=no, resize=no, resizable=no');
}

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) { //v4.0
  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 && document.getElementById) x=document.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_swapImage_Head(org, alt) { //v3.0
   //alert(document.images[org].src)
   document.images[org].src = alt;
}

function rnd() {
  rnd.seed = (rnd.seed*9301+49297) % 233280;
  return rnd.seed/(233280.0);
};

function rand(number) {
  // The Central Randomizer 1.3 (C) 1997 by Paul Houle (houle@msc.cornell.edu)
  // See:  http://www.msc.cornell.edu/~houle/javascript/randomizer.html
  return Math.ceil(rnd()*number);
};

//
// QueryString
//

function QueryString(key)
{
	var value = null;
	for (var i=0;i<QueryString.keys.length;i++)
	{
		if (QueryString.keys[i]==key)
		{
			value = QueryString.values[i];
			break;
		}
	}
	return value;
}

QueryString.keys = new Array();
QueryString.values = new Array();

function QueryString_Parse()
{
	var query = window.location.search.substring(1);
	var pairs = query.split("&");
	
	for (var i=0;i<pairs.length;i++)
	{
		var pos = pairs[i].indexOf('=');
		if (pos >= 0)
		{
			var argname = pairs[i].substring(0,pos);
			var value = pairs[i].substring(pos+1);
			QueryString.keys[QueryString.keys.length] = argname;
			QueryString.values[QueryString.values.length] = value;		
		}
	}

}

QueryString_Parse();

function textCounter(field, maxlimit) {
   if (field.value.length > maxlimit) // if too long...trim it!
      field.value = field.value.substring(0, maxlimit);
   // otherwise, update 'characters left' counter
   //else 
   //   countfield.value = maxlimit - field.value.length;
}