function displayWindow(url, desiredWidth, desiredHeight)
{
	
	try{
		aScreen = window.screen;
		tmpLeft = ( aScreen.availWidth / 2 ) - ( desiredWidth / 2 );
		tmpTop = ( aScreen.availHeight / 2 ) - ( desiredHeight / 2 );
		aWindow = window.open(url,'_blank', 'top=' + tmpTop + ',left=' + tmpLeft + ',height=' + desiredHeight + ',width=' + desiredWidth + ',resizable=no,scrollbars=no,toolbar=no,status=no');
	
		if(aWindow.focus)
		{
			aWindow.focus();
		}
	}
	catch( err )
	{
	  txt="There was an error on this page.\n\n";
	  txt+="Error description: " + err.description + "\n\n";
	  txt+="Click OK to continue.\n\n";
	  alert(err.description);
	}
}

function displayWindowQuick( url )
{
	displayWindow( url, 800, 600 );
}

function displayWindow_Windows( url )
{
	window.open( url, '_blank' );
}