/***********************************************
* Image Thumbnail viewer- © Dynamic Drive (www.dynamicdrive.com)
* Last updated Sept 26th, 03'. This notice must stay intact for use
* Visit http://www.dynamicdrive.com/ for full source code
***********************************************/
var ie=document.all
var ns6=document.getElementById&&!document.all
function ietruebody(){
	return (document.compatMode && document.compatMode!="BackCompat" && !window.opera)? document.documentElement : document.body
}

function enlargeThumbnail(which, e, position, imgwidth, imgheight, url, target){

	if (ie||ns6){
		crossobj=document.getElementById? document.getElementById("thumbnailViewer") : document.all.thumbnailViewer
		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"

		if(!target)
			target = '_self';


		if(!url){
			crossobj.innerHTML='<div align="right" id="dragbar" style="width:100%">' +
				   '<span id="closetext" onClick="closepreview()">Close</span></div>' +
				   '<img src="' + which + '" alt="Click and hold top bar to reposition image" onClick="closepreview()">'
		}
		else{
	crossobj.innerHTML='<div align="right" id="dragbar">' +
				   '<span id="closetext" onClick="closepreview()">Close</span></div>' +
				   '<a href="' + url + '"' + ' target="' + target + '">' +
				   '<img src="' + which + '" alt="Click and hold top bar to reposition image"></a>'
		}

		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")