/***********************************************
* 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 enlarge(which, e, position, imgwidth, imgheight){
	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/1-imgwidth/1 : ietruebody().scrollLeft+ietruebody().clientWidth/1-imgwidth/1
	vertpos=ns6? pgyoffset+window.innerHeight/1-imgheight/1 : pgyoffset+ietruebody().clientHeight/1-imgheight/1
	if (window.opera && window.innerHeight) //compensate for Opera toolbar
	vertpos=pgyoffset+window.innerHeight/1-imgheight/1
	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()">Close</span> </div><img src="'+which+'">'
	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")