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/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.left="50px"
		crossobj.style.top=vertpos+"px"
		
		crossobj.innerHTML='<div align="Right" id="dragbar" HEIGHT="15px"><span id="closetext" onClick="closepreview()"><img src="../images/closelabel.gif"></span> </div><img align=center 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")