javascript giving weird output -


i have weird problem javascript. wrote code checks if text input user good, , after while message saying if or not disappears, suggestions? 

<%@ page language="c#" autoeventwireup="true" codefile="default2.aspx.cs" inherits="default2" %>    <!doctype html public "-//w3c//dtd xhtml 1.0 transitional//en" "http://www.w3.org/tr/xhtml1/dtd/xhtml1-transitional.dtd">    <html xmlns="http://www.w3.org/1999/xhtml">  <head runat="server">      <title></title>      <ul style="text-align:"right" dir="rtl">      <script type="text/javascript">          function validate() {              var ok = true;              if (firstname() == false) {                  ok = false;              }          }          function firstname() {              document.getelementbyid("firstname").innerhtml = "";          var firstname = document.getelementbyid("firstname").value;          var length = firstname.length;          if (length < 2) {              document.getelementbyid("firstn").innerhtml = "not good";              return false;          }          else {              document.getelementbyid("firstn").innerhtml = "good";          }          return true;          }      </script>  </head>  <body>        <form id="form1" runat="server" onsubmit="return validate()" action="default2.aspx">      <div>      enter first name      <input type="text" id="firstname"  />       <label id="firstn"></label>       <br />       <input type="submit" value="send"/>       </div>      </form>  </body>  </html>

well,

please remember have mentioned action in form, control transferred page mentioned in when "true" encountered. if still want see "good", can remove action.

so code working, can either change below,

    <script type="text/javascript">          function validate() {              if (firstname() == false) {                  return false;              } else {              	return true;              }          }          function firstname() {              document.getelementbyid("firstname").innerhtml = "";          var firstname = document.getelementbyid("firstname").value;          var length = firstname.length;          if (length < 2) {              document.getelementbyid("firstn").innerhtml = "not good";              return false;          }          else {              document.getelementbyid("firstn").innerhtml = "good";          }          return true;          }      </script>

or,

you can use jquery validation, way better , less time consuming,

jquery form validation example

jquery validate options


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