function resizeWindow(winx, winy) {
		try{
			window.resizeTo(winx, winy);
			if(!newWindow) {
				window.moveTo((screen.width) ? (screen.width-winx)/2 : 0, (screen.height) ? (screen.height-winy)/2 : 0);
			}
			window.resizeTo(winx, winy);
			newWindow = false;
		}
		catch(e) {}
	}
function openwin(loc, w, h) {
	newWin = window.open(loc,'nav_win',
'toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=yes,width=' + w + ',height=' + h);
}