var xoombox_popupPlayer = null;

function openPopup(url){
	
	var screenW=0, screenH=0;
	var posX=0, posY=0;
	if (parseInt(navigator.appVersion)>3) 
	{
 		screenW = screen.width;
 		screenH = screen.height;
	}
	else if (navigator.appName == "Netscape" && parseInt(navigator.appVersion)==3 && navigator.javaEnabled()) 
	{
 		var jToolkit = java.awt.Toolkit.getDefaultToolkit();
		var jScreenSize = jToolkit.getScreenSize();
 		screenW = jScreenSize.width;
 		screenH = jScreenSize.height;
	}
	
	posX = (screenW - 644)/2;
	posY = (screenH - 593)/2;

	if (posX<0)
	{	posX=0;}
	if (posY<0)
	{	posY=0;}
	
	if (xoombox_popupPlayer && !xoombox_popupPlayer.closed)
	{	xoombox_popupPlayer.focus();}
	else
	{
		xoombox_popupPlayer=window.open(url,'xoombox_popupPlayer','width=644,height=593,left='+posX+',top='+posY+',scrollbars=0, resizable=0');
		if (window.focus) {xoombox_popupPlayer.focus();}
	}
	
}