<SCRIPT type="text/javascript">
function showPic() {
var a=document.getElementsByName('radio');
if(a.checked)
{
document.write("<img src='3.png' />");
}
}
</SCRIPT>
点击单选按钮后图片不显示
function showPic() {
var a=document.getElementsByName('radio');
if(a.checked)
{
document.write("<img src='3.png' />");
}
}
</SCRIPT>
点击单选按钮后图片不显示
试试
function showPic(o) {
if(o.checked)
{
alert(o.value);
}
}
</SCRIPT> 你如果没有单独的绑定事件,那你可以使用window.onload去批量绑定相关事件
<!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">
<title>测试</title>
<script type="text/javascript">
window.onload=function(){
var o=document.getElementsByName("r1");
for(i=0;i<o.length;i++)
{
o[i].onclick=function(){
alert("你选中了"+this.value);
}
}
}</script>
</head>
<body>
<input type="radio" name="r1" checked="checked" value="1"/>
<input type="radio" name="r1" value="2"/>
<input type="radio" name="r1" value="3"/>
<input type="radio" name="r1" value="4"/>
<input type="radio" name="r1" value="5"/>
<input type="radio" name="r1" value="6"/>
<input type="radio" name="r1" value="7"/>
<input type="radio" name="r1" value="8"/>
<input type="radio" name="r1" value="9"/>
<input type="radio" name="r1" value="10"/>
</body>
</html>