// Copyright 1999 - 2002 by Ray Stott, Pop-up Windows Script ver 2.0
		// OK to use if this copyright is included
		// Script is available at http://www.crays.com/jsc          

		var popWin = null    // use this when referring to pop-up window
		var winCount = 0
		var winName = "popWin"
		function openPopWin(winURL, winWidth, winHeight, winFeatures, winLeft, winTop){
		var d_winLeft = 20  // default, pixels from screen left to window left
		var d_winTop = 20   // default, pixels from screen top to window top
		winName = "popWin" + winCount++ //unique name for each pop-up window
		closePopWin()           // close any previously opened pop-up window
		if (openPopWin.arguments.length >= 4)  // any additional features? 
			winFeatures = "," + winFeatures
		else 
			winFeatures = "" 
		if (openPopWin.arguments.length == 6)  // location specified
			winFeatures += getLocation(winWidth, winHeight, winLeft, winTop)
		else
			winFeatures += getLocation(winWidth, winHeight, d_winLeft, d_winTop)
		popWin = window.open(winURL, winName, "width=" + winWidth 
				+ ",height=" + winHeight + winFeatures)
		}
		function closePopWin(){    // close pop-up window if it is open 
		if (navigator.appName != "Microsoft Internet Explorer" 
			|| parseInt(navigator.appVersion) >=4) //do not close if early IE
			if(popWin != null) if(!popWin.closed) popWin.close() 
		}
		function getLocation(winWidth, winHeight, winLeft, winTop){
		return ""
		}

		function getLocation(winWidth, winHeight, winLeft, winTop){
		var winLocation = ""
		if (winLeft < 0)
			winLeft = screen.width - winWidth + winLeft
		if (winTop < 0)
			winTop = screen.height - winHeight + winTop
		if (winTop == "cen")
			winTop = (screen.height - winHeight)/2 - 20
		if (winLeft == "cen")
			winLeft = (screen.width - winWidth)/2
		if (winLeft>0 & winTop>0)
			winLocation =  ",screenX=" + winLeft + ",left=" + winLeft	
						+ ",screenY=" + winTop + ",top=" + winTop
		else
			winLocation = ""
		return winLocation
		}