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不错的公告栏

时间:2007-10-02 11:54:19 发布者:18103****22

代码如下： <script language="JavaScript"> <!-- Activate Cloaking Device var i = 0; // used to cycle thru messages var TextNumber = -1; // array of messages var TextInput = new Object(); // used to load manipulate message var HelpText=""; // used to load message var Text = ""; // length of timeout (smaller is faster) var Speed=50; // used to display message number var message=0; // used to position text in ver 2.0 var addPadding="\r\n"; // Each element of TextInput represents a single message. TextInput[0] = "今天注意了有新的任务布置"; TextInput[1] = "欢迎你的光临！本站为你提供大量javascript下载"; TextInput[2] = "重点介绍Javascript"; TextInput[3] = "与制作网页特效密切相关的技术"; TextInput[4] = "本站同时有影音空间等栏目"; TextInput[5] = "还有新闻及健康方面的资料"; TextInput[6] = "还有宽带网方面的大量技术文章"; TextInput[7] = "本站网址：http://www.liequ.net"; TotalTextInput = 7; // (0, 1, 2, 3, 4, 5, 6, 7) // Positioning and speed vary between versions. var Version = navigator.appVersion; if (Version.substring(0, 1)==3) { Speed=200; addPadding=""; } for (var addPause = 0; addPause <= TotalTextInput; addPause++) {TextInput[addPause]=addPadding+TextInput[addPause];} var TimerId var TimerSet=false; // Called by >>> button (display next message) . function nextMessage() { if (!TimerSet) { TimerSet=true; clearTimeout (TimerId); if (TextNumber>=TotalTextInput) { alert("This is the end of the list!"); TimerSet=false; } else { TextNumber+=1; message=TextNumber+1; document.forms[0].elements[2].value= message; Text = TextInput[TextNumber]; HelpText = Text; } teletype(); } } // Gets and displays character from rollMessage() . // Variable Speed controls length of timeout and thus the speed of typing. function teletype() { if (TimerSet) { Text=rollMessage(); TimerId = setTimeout("teletype()", Speed); document.forms[0].elements[0].value=Text; } } // Pulls one character at a time from string and returns (as Text) to function teletype() for displaying. function rollMessage () { i++; var CheckSpace = HelpText.substring(i-1, i); CheckSpace = "" + CheckSpace; if (CheckSpace == " ") {i++;} if (i >= HelpText.length+1) { TimerSet=false; Text = HelpText.substring(0, i); i=0; return (Text); } Text = HelpText.substring(0, i); return (Text); } // Initially called by onLoad in BODY tag to load title. function initTeleType() { Text="\r\n Manual Tele-Type Display"; document.forms[0].elements[0].value=Text; } // Called by <<< button (get previous message). function lastMessage() { if (!TimerSet && TextNumber!=-1) { TimerSet=true; clearTimeout (TimerId); if (TextNumber<=0) { alert("This is the beginning of the list!"); TimerSet=false; } else { TextNumber-=1; message=TextNumber+1; document.forms[0].elements[2].value= message; Text = TextInput[TextNumber]; HelpText = Text; } teletype(); } } // Deactivate Cloaking --></script> <!--在<body>区域中加入如下代码:--> <form> <table CELLSPACING="0" CELLPADDING="0" WIDTH="17%"> <tr> <td width="100%" colspan="3" valign="top"><div align="center"><p><textarea NAME="teletype" ROWS="3" COLS="28" wrap="yes">

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