// this is part of the kses extension for Vanilla
	// http://lussumo.com/addons/?AddOnID=121

	function ksesOpenWin(url)
	{
		var w = 200;
		var h = 250;
	
		var t = (screen.height) ? (screen.height - h) / 2 : 0;
		var l = (screen.width) ? (screen.width - w) / 2 : 0;
	
		var win = window.open(url, 'ksesHelp',
			'top = '+t+', left = '+l+', width = '+w+', height = '+h+', ' +
			'toolbar = no, location = no, directories = no, status = no, ' +
			'menubar = no, scrollbars = yes, copyhistory = yes, resizable = yes');
	
		win.focus();
	}