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.top=vertpos+"px";
		crossobj.style.width=imgwidth+"px";
		crossobj.style.height=imgheight+"px";
		//crossobj.innerHTML='<div align="right" id="dragbar"><span id="closetext" onClick="closepreview()">Close Window [x] &nbsp;</span> </div>';
		loadDivData(which, 'showimage', 'GET');
		crossobj.style.visibility="visible";
		return false;
	}
	else
		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")




function loadDivData(url, div_id, send_type) {
	var xmlhttp = false;

                              if (window.XMLHttpRequest) {

                       xmlhttp = new XMLHttpRequest();

               } 

               else if (window.ActiveXObject) {

                       xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");

               }


               if (url != "" && div_id != "") {


						if (send_type == 'GET') {

                               xmlhttp.open('GET', url, true);

                               xmlhttp.onreadystatechange = function() {

                                      if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {
										
                                                      document.getElementById(div_id).innerHTML = '<div align="right" id="dragbar"><span id="closetext" onClick="closepreview()">Close Window [x] &nbsp;</span> </div>' + xmlhttp.responseText;


                                      }

                               }

                       xmlhttp.send(null);

                       }

               }

        }