<!--
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_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)
   // marcus 
   if(a[0]==pageID) {}
   else 
    // end marcus
   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_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_setImage() { //v3.0
  var i,j=0,x,a=MM_setImage.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];}
}

//home nav
if (document.images) {
	img = new MakeImgArray(5) ;
	img[0].src = "images/nav150/nav150_0.gif" ;
	img[1].src = "images/nav150/nav150_f01.gif" ; //litho
	img[2].src = "images/nav150/nav150_f02.gif" ; //woodcuts
	img[3].src = "images/nav150/nav150_f03.gif" ; //etchings
	img[4].src = "images/nav150/nav150_f04.gif" ; //other media
}

function MakeImgArray(n) {
	this.length = n
	for (var i=0; i<=n; i++) {
		this[i] = new Image() ;
	}
}

function imgOn(imgRef) {
	if (document.images) {
		//for (var i=1; i<=4; i++)
		{
		//if (i != imgRef) 
		document["tile0"].src=img[imgRef].src ;
		}	
	}
}

function imgOff() {
	if (document.images) {
		document["tile0"].src=img[0].src ;
	}
}

// prints a img tag with a src of the form n.jpg where n is a random number in a specified range
function randomimage() 
{
var n = 13;   // to generate number between 1 and n
var dir = 'images';
var file = 'greenweaver'
var src_attribute = dir + '/' + file + (Math.floor(Math.random()*n)+1) + '.jpg';
return src_attribute;
}

var __popupwin=0
function popup(URL,w,h) 
{
 	var l = (screen.availWidth) ? (screen.availWidth-w)/2 : (screen.width) ? (screen.width-w)/2 : 0 ;
	var t = (screen.availHeight) ? (screen.availHeight-h)/2 : (screen.height) ? (screen.height-h)/2 : 0 ;
	settings = 'height='+h+',width='+w+',top='+t+',left='+l+',scrollbars=no,resizable=no' ;
	if (w > screen.width || h > screen.height) 
	{
		w=screen.width-80 ; h=screen.height-80 ;
		settings = 'height='+h+',width='+w+',top=10,left=10,scrollbars=yes,resizable=yes' ;  
	}
	if(__popupwin&&!__popupwin.closed)__popupwin.close()
	__popupwin = window.open(URL,'popup',settings)	
}
//-->