function openNewWindow(sURL, sName, iWidth, iHeight, bResizable, bScrollbars)
{
	var iTop  = (screen.height - iHeight) / 2 ;
	var iLeft = (screen.width  - iWidth) / 2 ;
	
	var sOptions = "toolbar=no" ;
	sOptions += ",width=" + iWidth ; 
	sOptions += ",height=" + iHeight ;
	sOptions += ",resizable="  + (bResizable  ? "yes" : "no") ;
	sOptions += ",scrollbars=" + (bScrollbars ? "yes" : "no") ;
	sOptions += ",left=" + iLeft ;
	sOptions += ",top=" + iTop ;
	
	var oWindow = window.open(sURL, sName, sOptions)
	oWindow.focus();
	
	return oWindow ;
}