var pic = null
var popImg = null  
var picTitle = null
var imgCount = 0
var imgWinName = "popImg"

function closePopImg(){  
  if (navigator.appName != "Microsoft Internet Explorer" 
      || parseInt(navigator.appVersion) >=4) 
    if(popImg != null) if(!popImg.closed) popImg.close()
  }

function openPopImg(picName, windowTitle, windowWidth, windowHeight)
{
	var nm ='';
	var pax=4;
	windowHeight=400;
	closePopImg()
	picTitle = windowTitle
	imgWinName = "popImg" + imgCount++ 
	popImg = window.open('PopupImage.htm?img='+picName,imgWinName,"width=" + (parseInt(windowWidth))  + ",height=" + (parseInt(windowHeight))+",toolbar=no,menubar=yes,scrollbars=yes,resizable=yes");

}