使用<meta>标签的ASP源程序例子

March 25,2004

utils/Init.asp
<%
// ============================================
// NOTE: all source code downloaded from CoverYourASP was written by
// James Shaw (unless stated otherwise), and is copyright (c) 2000 by
// James Shaw. You may use this source code on your web sites, but
// please don't publish or distribute in any way.
//
// I would appreciate an HTML comment in any code you use, i.e.
//       
// (see Footer(), documented in SSI.asp for details on how to do this)
//
// <shameless plug>
//    Please contact me to discuss any ASP contract work you may have.
// </shameless plug>
// ============================================

// ============================================
// the standard meta tags to start document
// ============================================
function Init ( sTitle, sKeywords )
{
Out ( '<!doctype html public "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/REC-
html40/loose.dtd">' );
Out ( '<html><head>' );
Out ( '<base target="_top">' );

// for any browsers
Out ( '<link rev=MADE href="mailto:james@CoverYourASP.com">' );
Out ( '<meta name="resource-type" content="document">' );
Out ( '<meta http-equiv="Content-Type" Content="text-html; charset=iso8859-1">' );
Out ( '<meta http-equiv="PICS-Label" content='(PICS-1.1 "http://www.rsac.org/ratingsv01.html" l gen
true comment "RSACi North America Server" for "http://CoverYourASP.com/" on "2000.09.08T03:03-0800" r (n 0
s 0 v 0 l 0))'>' );

// for spiders only - I hide these lines from browsers
var sBrowser = "" + Request.ServerVariables ( 'HTTP_USER_AGENT' );

if ( ( -1 == sBrowser.indexOf ( 'Mozilla' ) && -1 == sBrowser.indexOf ( 'Opera' ) ) || IsDebug () )
{
   // it's an unknown browser - probably a spider
   Out ( '<meta name="Author" content="James Shaw">' );
   Out ( '<meta name="Keywords" content="coveryourasp, cya, james shaw, asp, active server pages,
active, server, pages, scripts, microsoft, iis, email, cdonts, form, access, database, free code, source,
code, programmer, programming, developer, development, javascript, jscript, com, atl, c++' );
   // add any passed-in keywords
   if ( sKeywords != undefined )
      Out ( ', ' + sKeywords );
   Out ( '"><meta name="Description" content="Live examples and full source code for solving practical
problems using ASP (Active Server Pages), C++ ATL COM components, Server and Client-side JavaScript and
DHTML.">' );
}
else
{
   // it's a known browser - show "throwaway" keywords so we don't arouse suspicion!
   Out ( '<meta name="Keywords" content="James Shaw">' );
   Out ( '<meta name="Description" content="James Shaw's site">' );
}

Out ( '<title>' + sTitle + '</title>' );

Out ( '<style>' );
   Out ( 'a:link { color:#FF3300; }' );
   Out ( 'a:vlink { color:#FF3300; }' );
   Out ( 'a:alink { color:#CC0000; }' );
   Out ( 'body { font:8pt/11pt verdana;}' );
   Out ( 'table { font:8pt/11pt verdana;}' );
Out ( '</style></head>' );
}

// ============================================
// are we being run from a special debug URL?
// ============================================
var bDebug;

function IsDebug ( )
{
// for efficiency, only work out if we're in debug mode
// the first time we're used on a page.
if ( bDebug == undefined )
{
   // the test can be if we're on localhost (i.e. on development machine)
   /*
   var sServer = "" + Request.ServerVariables ( "SERVER_NAME" );

   bDebug = ( -1 != sServer.indexOf ( "localhost" ) );
   */

   //..or for demo purposes, if a certain QueryString exists
   bDebug = ( 0 != Request.QueryString ( "debug" ).Count );
}

return bDebug;
}

// ============================================
// shorthand to save me typing Response.Write all the time!
// ============================================
function Out ( sHTML )
{
Response.Write ( sHTML );
}

// ============================================
// only display when special URL
// ============================================
function DebugOut ( sHTML )
{
if ( !IsDebug () )
   return;

Out ( sHTML );
}
%>