function windowNew( sAdres, iWidth, iHeight, sTitle, iReturn ){
	  if ( !sTitle )
		sTitle = '';
	  if( !iReturn )
		iReturn = false;

		if( !iWidth )
			var iWidth = 800;
		else
			iWidth = iWidth + 40;
		if( !iHeight )
			var iHeight = 600;
		else
			iHeight = iHeight + 40;

		var iX = ( screen.availWidth - iWidth ) / 2;
		var iY = ( screen.availHeight - iHeight ) / 2;

	  var refOpen = window.open( sAdres, sTitle, "height="+iHeight+",width="+iWidth+",top="+iY+",left="+iX+",resizable=yes,scrollbars=yes,status=0;" );
	  
	  if( iReturn == true )
		return refOpen
}