📄 mainpage.htm

📁 javascript source code part1

💻 HTM

字号:

<HTML>
<HEAD>
<SCRIPT LANGUAGE=JavaScript>

var lastUpdated = new Date("Tue, 28 Dec 2010");

function getCookieValue(cookieName)
{
   var cookieValue = document.cookie;
   var cookieStartsAt = cookieValue.indexOf(" " + cookieName + "=");

   if (cookieStartsAt == -1)
   {
      cookieStartsAt = cookieValue.indexOf(cookieName + "=");
   }

   if (cookieStartsAt == -1)
   {
      cookieValue = null;
   }
   else
   {
      cookieStartsAt = cookieValue.indexOf("=", cookieStartsAt) + 1;
      var cookieEndsAt = cookieValue.indexOf(";", cookieStartsAt);
      if (cookieEndsAt == -1)
      {
         cookieEndsAt = cookieValue.length;
      }
      cookieValue = unescape(cookieValue.substring(cookieStartsAt,
         cookieEndsAt));
   }

   return cookieValue;
}

function setCookie(cookieName, cookieValue, cookiePath, cookieExpires)
{
   cookieValue = escape(cookieValue);

   if (cookieExpires == "")
   {
      var nowDate = new Date();
      nowDate.setMonth(nowDate.getMonth() + 6);
      cookieExpires = nowDate.toGMTString();
   }

   if (cookiePath != "")
   {
      cookiePath = ";Path=" + cookiePath;
   }

   document.cookie = cookieName + "=" + cookieValue + 
      ";expires=" + cookieExpires + cookiePath;
}

</SCRIPT>
</HEAD>

<BODY>
<H2 ALIGN=center>Welcome to my website</H2>
<BR><BR>
<CENTER>
<SCRIPT>

var lastVisit = getCookieValue("LastVisit");
if (lastVisit != null)
{
   lastVisit = new Date(lastVisit);
   if (lastVisit < lastUpdated)
   {
      document.write("<A HREF=\"WhatsNew.htm\">");
      document.write("<IMG SRC=\"WhatsNew.gif\" BORDER=0></A>");
   }
}

var nowDate = new Date();
setCookie("LastVisit", nowDate.toGMTString(),"","")

</SCRIPT>
</CENTER>
</BODY>
</HTML>

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