小弟我的onsubmit为什么不起作用

2012-05-31

我的onsubmit为什么不起作用？我的onsubmit为什么不起作用？我找了很久，没有找到原因，请各位给看看JScript c

我的onsubmit为什么不起作用？
我的onsubmit为什么不起作用？我找了很久，没有找到原因，请各位给看看

JScript code

<%@ page language="java" contentType="text/html; charset=UTF-8"    pageEncoding="UTF-8"%><!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><link rel="stylesheet" type="text/css" href="style/main.css"><title>会员注册</title><style type="text/css"><!--h3 {    font-size:14px;    font-weight:bold;}pre,p {    color:#1E7ACE;    margin:4px;}input, select,textarea {    padding:1px;    margin:2px;    font-size:12px;}.buttom{    padding:1px 10px;    font-size:12px;    border:1px #1E7ACE solid;    background:#D0F0FF;}#formwrapper {    width:95%;    margin:15px auto;    padding:20px;    text-align:left;}fieldset {    padding:10px;    margin-top:5px;    border:0px solid #1E7ACE;    background:#fff;}fieldset legend {    color:#1E7ACE;    font-weight:bold;    background:#fff;}fieldset label {    float:left;    width:120px;    text-align:right;    padding:4px;    margin:1px;}fieldset div {    clear:left;    margin-bottom:2px;}.enter{ text-align:center;}.clear {    clear:both;}--></style><script type="text/javascript">    function jiaoyan(form){                if(form.name.value.trim() == ""){            alert("您必须输入姓名");            return false;        }        if(form.nickname.value.trim() == ""){            alert("您必须输入昵称");            return false;        }        if(form.password.value.trim() == ""){            alert("您必须输入密码");            return false;        }        return true;    }</script></head><body>    <!-- 首页的导航条 -->    <jsp:include page="/NavServlet?method=navList"></jsp:include>    <!-- 首页中间 -->    <div id="mid">    <!-- 首页左边 -->        <div id="left" style="text-align:left">            <font color="red">${error }</font>            <hr><!-- 主界面 --><div class="h2title">会员注册</div>    <div id="formwrapper">        <form action="MemberServlet" method="post" onsubmit="return jiaoyan(this)">        <input type="hidden" name="method" value="reg">        <fieldset>                <div>                <label for="name">姓名</label>                <input type="text" name="name" id="name"  size="30" maxlength="200" />                 <br />                </div>            <div>                <label for="email">email</label>                <input type="text" name="email" id="email" size="30" maxlength="100" />                 <br />                </div>            <div>                <label for="nickname">昵称</label>                <input type="text" name="nickname" id="nickname" size="30" maxlength="100" />             </div>            <div>                <label for="password">密码</label>                <input type="password" name="password" id="password"  size="30" maxlength="100" />             </div>            <div>                <label for="qq">QQ</label>                <input type="text" name="qq" id="qq" size="15" maxlength="100" />             </div>            <div>                <label for="phone">电话</label>                <input type="text" name="phone" id="phone" size="20" maxlength="100" />             </div>            <div>                <label for="address">地址</label>                <input type="text" name="address" id="address"size="60" maxlength="100" />             </div>                        <div>                <label for="description">描述</label>                <textarea rows="5" cols="70" name="description" id="description"></textarea>                <br />                </div>            <div class="enter">                <input name="submit" type="submit" class="buttom" value="提交" />                <input name="reset" type="reset" class="buttom" value="重置" />            </div>        </fieldset>        </form>    </div></div></body></html>

[解决办法]
var charReg = {

trimLeft: /^\s*/, /* 清空左空格 */

rtrim: /^\s*$/, /* 清空右空格 */

}
/* 清空左空格 */
function trimLeft(str) {
if (str == null) {
return null;
}
return str.replace(this.charReg["trimLeft"], "");
}
/* 清空右空格 */
function trimRight(str) {
if (str == null) {
return null;
}
return str.replace(this.charReg["rtrim"], "");
}
/* 返回清空左右空格的字符串 */
function trim(str) {
if (str == null) {
return null;
}
var strS = str;
strS = this.trimLeft(strS);
strS = this.trimRight(strS);
return strS;
}

js没有trim()这个方法

[解决办法]
缺少trim()方法定义,加上下面的方法

String.prototype.trim = function()
{
return this.replace(/(^\s*)|(\s*$)/g, "");
}

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小弟我的onsubmit为什么不起作用