function showimg(image, thisimg){
	document.getElementById("popimg").style.display = "block";
	document.getElementById("popimg").style.background = 'url(' + image + ')';

	el = document.getElementById(thisimg);
	ot = el.offsetTop;
	while(el=el.offsetParent)
	{
		ot += el.offsetTop;
	}



var winW = 630, winH = 460;
if (parseInt(navigator.appVersion)>3) {
 if (navigator.appName=="Netscape") {
  winW = window.innerWidth;
  winH = window.innerHeight;
 }
 if (navigator.appName.indexOf("Microsoft")!=-1) {
  winW = document.body.offsetWidth;
  winH = document.body.offsetHeight;
 }
}


var scrollspacing;
if (navigator.appName == "Microsoft Internet Explorer")
{
	scrollspacing = document.body.scrollTop
}
else
{
	scrollspacing = window.pageYOffset
}



	document.getElementById("popimg").style.top = winH/2 - 200 + scrollspacing;
}

function hideimg(){
document.getElementById("popimg").style.display = "none";
}

function setheight(){


var winW = 630, winH = 460;
if (parseInt(navigator.appVersion)>3) {
 if (navigator.appName=="Netscape") {
  winW = window.innerWidth;
  winH = window.innerHeight;
 }
 if (navigator.appName.indexOf("Microsoft")!=-1) {
  winW = document.body.offsetWidth;
  winH = document.body.offsetHeight;
 }
}


var scrollspacing;
if (navigator.appName == "Microsoft Internet Explorer")
{
	scrollspacing = document.body.scrollTop
}
else
{
	scrollspacing = window.pageYOffset
}



	document.getElementById("popimg").style.top = winH/2 - 200 + scrollspacing;

}

setInterval("setheight()", 500);