var popWin = null
var winCount = 0
var winName = "popWin"
function openPopWin(winURL, winWidth, winHeight, winFeatures, winLeft, winTop){
var d_winLeft = 32  
var d_winTop = 32 
winName = "popWin" + winCount++
closePopWin() 
if (openPopWin.arguments.length >= 4)
 winFeatures = "," + winFeatures
else 
 winFeatures = "" 
if (openPopWin.arguments.length == 6)
 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(){    
if (navigator.appName != "Microsoft Internet Explorer" 
   || parseInt(navigator.appVersion) >=4)
 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
}