JavaScript实现点击单选按钮改变输入框中文本域内容的方法
更新时间：2026-05-11 00:10:06作者：yezheng
本文实例讲述了JavaScript实现点击单选按钮改变输入框中文本域内容的方法。分享给大家供大家参考。具体如下：
这里实现点击单选按钮改变输入框中文本域内容的方法，是一个JavaScript 的简单应用，可以减少用户的输入，提升用户操作易用性，它类似一个TAB选项卡一样的功能，并可以完成后提交表单，值得学习。
运行效果截图如下：
具体代码如下：
<html>
<head>
<title>JavaScript点击单选框改变输入框内容</title>
</head>
<body>
<script language=JavaScript>
var defaultValue = ""
function Changes() {
var defaultValue = "changed";
}
ie = document.all?1:0
ns4 = document.layers?1:0
var c = 1
function hideIt(id) {
if (ie) {
document.all[id].style.zIndex = c--;
document.all[id].style.visibility = "hidden";
document.all['hider'].style.visibility = "visible";
}
else if (ns4) {
document.layers[cat].layers[id].zIndex = c--;
document.layers[cat].layers[id].visibility = "hide";
document.layers[cat].layers['hider'].visibility = "show";
}
}
function showIt(id) {
if (ie) {
document.all[id].style.zIndex = c++;
document.all[id].style.visibility = "visible";
}
else if (ns4) {
document.layers[cat].layers[id].zIndex = c++;
document.layers[cat].layers[id].visibility = "show";
}
else {
document.getElementById(id).style.zIndex = c++;
document.getElementById(id).style.visibility = "visible";
}
}
function imgLbl(tab) {
premier = frmWc.elements[tab - 1];
if (premier.checked == 1) {
premier.checked = 0;
} else {
premier.checked = 1;
}
}
</script>
<FORM name=protectForm action="" method=post >
<TABLE width=560>
<TR>
<TD>
<TABLE cellPadding=2>
<TR align=left>
<TD vAlign=top align=left>
<INPUT
onclick="showIt( 'off');return true" type=radio value=0
name=Level checked>
ASP</TD>
<TD align=left width=20> </TD>
<TD vAlign=top align=left><INPUT
onclick="showIt( 'low');return true" type=radio
value=25 name=Level>
PHP</TD>
<TD align=left width=20> </TD>
<TD vAlign=top align=left>
<INPUT
onclick="showIt( 'high');return true" type=radio value=75 name=Level>
JSP</TD>
<TD align=left width=20> </TD>
<TD vAlign=top align=left><INPUT
onclick="showIt( 'excl');return true" type=radio
value=100 name=Level>
AJAX</TD>
</TR></TABLE></TD></TR></TABLE>
<table cellspacing=1 cellpadding=0 width=562 border="0" bgcolor="7285CF" height="240">
<tr>
<td colspan=3 height="145" valign="top" bgcolor="F2F2F2">
<div id=off style="WIDTH: 560px;POSITION: absolute; HEIGHT: 230; z-index: 1; background-color: F2F2F2; layer-background-color: F2F2F2; border: 1px none #000000">
<table cellspacing=5 cellpadding=2 width="560" border="0">
<tr>
<td width="560">ASP是一种微软发明的WEB动态编程语言。</td>
</tr>
</table>
</div>
<div id=low
style="WIDTH: 560px;POSITION: absolute; HEIGHT: 230; z-index: 2; visibility: hidden; background-color: F2F2F2; layer-background-color: F2F2F2; border: 1px none #000000">
<table cellspacing=5 cellpadding=2 width="560">
<tr >
<td width="1237">PHP是一种开源、免费平台通用型WEB编程语言。</td>
</tr>
</table>
</div>
<div id=high
style="WIDTH: 560px;POSITION: absolute; HEIGHT: 230; z-index: 1; visibility: hidden; background-color: F2F2F2; layer-background-color: F2F2F2; border: 1px none #000000">
<table cellspacing=5 cellpadding=2 width="560">
<tr>JSP是SUN公司制造的基于JAVA的WEB编程容器，也是一种WEB编程语言。</td>
</tr>
</table>
</div>
<div id=excl
style="WIDTH: 560px;POSITION: absolute; HEIGHT: 230; z-index: 1; visibility: hidden; background-color: F2F2F2; layer-background-color: F2F2F2; border: 1px none #000000">
<table cellspacing=5 cellpadding=2 width="560">
<tr>
<td width="953">AJAX是一种WEB交互型框架语言，可以很好的提升用户体验。</td>
</tr>
</table>
</div>
</td>
</tr>
</table>
<TABLE cellSpacing=0 cellPadding=0 width=560>
<TR>
<TD align=right height="30">
<INPUT class=bottom type=submit value=" 确定 ">
<INPUT class=bottom type=button value=" 取消 " name="Button">
</TD></TR></TABLE>
</FORM>
</body>
</html>
希望本文所述对大家的javascript程序设计有所帮助。
