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Use JS to make a simple message board effect

Source: Internet
Author: User
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HTML section:

   1: <! Doctype>

   2: 

   3: 

   4:     <title>js implement simple message board </title>

   5:     <meta http-equiv= "Content-type" content= "Text/html;charset=utf-8" >

   6:     <link rel= "stylesheet" type= "Text/css" href= "./forum.css" >

   7:     <script type= "Text/javascript" src= "./forum.js" ></script>

   8: 

   9: <body>

  Ten:     <div class= "Container" >

  One:         <div class= "Content" >

  :             <!--<form action= "?" method= "?" >

  :                 <div class= "text" >

                       <label for= "message" >JS simple message board (empty can view the default message content) </label>

  :                 </div>

  :                 <div class= "text" style= "margin-left:-75px" >

  Page:                     <label for= "name" > Nickname:</label>

  :                     <input type= "text" id= "name" value= "nickname (Dwqs by default)" class= "TXT" >

  :                 </div>

  :                 <div class= "text" >

  £                     <textarea rows= "5" cols= "" id= "message" value= "" class= "txt" > Leave me a message (Default message content: My station: www.ido321.com) </ Textarea>

  :                 </div>

  At:                 <div class= "BTN" >

  :                     <!--<input type= "Submit" id= "Submit" value= "Submission Message" >

  :                     <button id= "BTN1" > Submit message </button>

  :                 </div>

               <!--</form> –

  :         </div>

  £ º         

  :         

  To:         <div class= "messagelist" id= "Messagelist" >

  :         </div>

  :     </div>

  : </body>

  :

Css:

   1: *{

   2:     margin:0 auto;

   3:     padding:0;

   4:     font-family: "Microsoft Yahei", "Sans-serif";

   5:}

   6:. container{

   7:     width:400px;

   8:     Height:auto;

   9:}

  Ten:. text{

  One:     text-align:center;

  :     margin-bottom:15px;

  13:}

  :. btn{

  :     margin-right:30px;

  :     float:right;

  17:}

  : #messageList {

  :     width:100%;

  :     height:100%;

  21:}

  :. txt{

  at:     Color:gray;

  :     opacity:0.8;

  :     Filter:alpha (opacity=0.8);

  26:}

ls|

   1:/**

   2: * After the document is loaded, run a function called Func

   3: * @param func The name of the function to run

   4: * Description: The value of the Window.onload event handler function is stored in the variable oldonload; If no function is bound on the function, the normal add

   5: * PLUS; If a function is already bound, it is added to the end of the instruction.

   6: */

   7:function Addloadevent (func)

   8: {

   9:     var oldonload = window.onload;//function to get the previous onload event

  :     if (typeof window.onload! = ' function ')

  One:     {

  :         window.onload = func;

  :     }

  :     Else

  :     {

  :         window.onload = function ()

  :         {

  :             oldonload ();//function that calls the OnLoad event that was overwritten before

  :             func ();//Call the current event function

  :         }

  :     }

  22:}

  23:function GetMessage () {

  :     var btn = document.getElementById ("btn1");

  :     var message = document.getElementById ("message");

  $:     var name = document.getElementById ("name");

  :     var namevalue = "";

  £ º     var messagevalue = "";

  29:

  :     Name.onfocus = function () {

  To:         name.value= "";

  :     }

  :     Message.onfocus = function () {

  Message.value=: "         ";

  :     }

  36:

  PNS:     Btn.onclick = function () {

  A:         messagevalue =  Message.value | | "My station: www.ido321.com"; Set default values

  The following:         namevalue = Name.value | | "Dwqs";

  Max:         var msglist = document.getElementById ("Messagelist");

  Msgdiv:         var = document.createelement ("div");

  £ º         var msgtxt = document.createTextNode (namevalue+ "said:" +messagevalue);

  :         msgdiv.appendchild (MsgTxt);

  :         msglist.appendchild (MSGDIV);

  :     }

  46:}

  47:addloadevent (GetMessage);

Effect:

The disadvantage is that the data is not saved, and then the data is saved with Js+websql, but only Chrome is currently supported Websql

For the default value of JS setting, refer to: http://www.ido321.com/555.html

Use JS to make a simple message board effect

This article is an English version of an article which is originally in the Chinese language on aliyun.com and is provided for information purposes only. This website makes no representation or warranty of any kind, either expressed or implied, as to the accuracy, completeness ownership or reliability of the article or any translations thereof. If you have any concerns or complaints relating to the article, please send an email, providing a detailed description of the concern or complaint, to info-contact@alibabacloud.com. A staff member will contact you within 5 working days. Once verified, infringing content will be removed immediately.

Related Keywords:
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