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)
	window.location.reload();return false;
}

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 ""
}