var ie=document.all
var ns6=document.getElementById&&!document.all
var cred=''

function ietruebody()
{
return (document.compatMode && document.compatMode!="BackCompat" && !window.opera)? document.documentElement : document.body
}

function enlarge(which, e, position, imgwidth, imgheight, cred)
{
if (ie||ns6)
{
crossobj=document.getElementById? document.getElementById("showimage") : document.all.showimage
if (position=="center")
{
pgyoffset=ns6? parseInt(pageYOffset) : parseInt(ietruebody().scrollTop)
horzpos=ns6? pageXOffset+window.innerWidth/2-imgwidth/2 : ietruebody().scrollLeft+ietruebody().clientWidth/2-imgwidth/2
vertpos=ns6? pgyoffset+window.innerHeight/2-imgheight/2 : pgyoffset+ietruebody().clientHeight/2-imgheight/2
if (window.opera && window.innerHeight) //compensate for Opera toolbar
vertpos=pgyoffset+window.innerHeight/2-imgheight/2
vertpos=Math.max(pgyoffset, vertpos)
}
else{
var horzpos=ns6? pageXOffset+e.clientX : ietruebody().scrollLeft+event.clientX
var vertpos=ns6? pageYOffset+e.clientY : ietruebody().scrollTop+event.clientY
}
crossobj.style.left=horzpos+"px"
crossobj.style.top=vertpos+"px"

crossobj.innerHTML='<div  align="right" id="dragbar"><span id="closetext" onClick="closepreview()"><img src="images/close.jpg" width=16 height=14 border=0></span></div><img src="'+which+'"><div  align="left" id="credits"><span id="credtext">'+cred+'</span></div>'
crossobj.style.visibility="visible"
return false
}
else //if NOT IE 4+ or NS 6+, simply display image in full browser window
return true
}

function closepreview()
{
crossobj.style.visibility="hidden"
}

function drag_drop(e){
if (ie&&dragapproved){
crossobj.style.left=tempx+event.clientX-offsetx+"px"
crossobj.style.top=tempy+event.clientY-offsety+"px"
}
else if (ns6&&dragapproved){
crossobj.style.left=tempx+e.clientX-offsetx+"px"
crossobj.style.top=tempy+e.clientY-offsety+"px"
}
return false
}

function initializedrag(e){
if (ie&&event.srcElement.id=="dragbar"||ns6&&e.target.id=="dragbar"){
offsetx=ie? event.clientX : e.clientX
offsety=ie? event.clientY : e.clientY

tempx=parseInt(crossobj.style.left)
tempy=parseInt(crossobj.style.top)

dragapproved=true
document.onmousemove=drag_drop
}
}

/* document.onmousedown=initializedrag
document.onmouseup=new Function("dragapproved=false")*/

/* Video window opener... */

/* USAGE: 
<a href="video-en.html" onmouseover="window.status='Click to view the video in a new window';return true;"  onclick="NewWindow(this.href,'video','392','372','no');return false;">VIDEO FROM THE EXHIBITION</a><br>
(requires <a           href="http://www.microsoft.com/windows/windowsmedia/9series/player.aspx" target="_blank">Windows Media Player</a>, version 9) 
*/

var win = null;
function NewWindow(mypage,myname,w,h,scroll)
{
LeftPosition = (screen.width) ? (screen.width-w)/2 : 0;
TopPosition = (screen.height) ? (screen.height-h)/2 : 0;
settings ='height='+h+',width='+w+',top='+TopPosition+',left='+LeftPosition+',scrollbars=no'+scroll+',resizable=no'
win = window.open(mypage,myname,settings)
}