网页编程 － 通过COOKIES记录密码
<HEAD> <SCRIPT LANGUAGE="JavaScript"> <!-- Begin function getCookieVal (offset) { var endstr = document.cookie.indexOf (";", offset); if (endstr == -1) endstr = document.cookie.length; return unescape(document.cookie.substring(offset, endstr)); } function GetCookie (name) { var arg = name + "="; var alen = arg.length; var clen = document.cookie.length; var i = 0; while (i < clen) { var j = i + alen; if (document.cookie.substring(i, j) == arg) return getCookieVal (j);i = document.cookie.indexOf(" ", i) + 1; if (i == 0) break; } return null; } function SetCookie (name, value) { var argv = SetCookie.arguments; var argc = SetCookie.arguments.length; var expires = (argc > 2) ? argv[2] : null; var path = (argc > 3) ? argv[3] : null; var domain = (argc > 4) ? argv[4] : null; var secure = (argc > 5) ? argv[5] : false; document.cookie = name + "=" + escape (value) + ((expires == null) ? "" : ("; expires=" + expires.toGMTString())) + ((path == null) ? "" : ("; path=" + path)) + ((domain == null) ? "" : ("; domain=" + domain)) + ((secure == true) ? "; secure" : ""); } function DeleteCookie () { var exp = new Date(); exp.setTime (exp.getTime() - 1000000000); // This cookie is history var cval = GetCookie ('FreeStuffL'); document.cookie ='FreeStuffL' + "=" + cval + "; expires=" + exp.toGMTString(); } function cookieCreater () { if(GetCookie('FreeStuffL') == null) { var FreeStuffL_Name = prompt ("你想要什么名字经过?", "" ); if (FreeStuffL_Name != null && FreeStuffL_Name != "") { var expdate = new Date (); expdate.setTime(expdate.getTime() + (24 * 60 * 60 * 1000 * 365)); SetCookie('FreeStuffL', FreeStuffL_Name, expdate); alert ("你现在被登录！从现在起, 当你来到这页时，你将被提交给成员仅仅被保护了的口令区域。请别告诉任何人你的入口代码。在这新页，你将被看功能的一张表。玩吧!"); location.href = "http://5meng.com" } } else { DeleteCookie (); cookieCreater () } } if(GetCookie('FreeStuffL') != null) { location.href="cookie-in.html" } function check() { var tester = document.login.numOne.value + document.login.numTwo.value; if (tester == "") { alert ("很抱歉, 那密码不是正确的."); } else { if (tester == document.login.numThree.value) { alert ("谢谢!你已经通过"); cookieCreater (); } else { alert ("不!"); } } } // End --> </SCRIPT> <BODY> <center> <form name='login'> 很好的一个密码脚本，(分别输入1 2 12看一下效果): <p><input TYPE='text' NAME='numOne' SIZE=15><br> <input TYPE='text' NAME='numTwo' SIZE=15 ><br> <input TYPE='text' NAME='numThree' SIZE=15 ><br> <input TYPE='button' VALUE='Login' ONCLICK='check()'> </form> </center> <form name="login2"> <input type=hidden name="go" value="http://5meng.com"> </form>
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