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<html>
<head>
<title>点击单选框将值添加至文本框</title>
<script>
function dochange(str)
{
var obj=document.getElementsByTagName("input")
for(var i=0;i<obj.length;i++)
if(obj[i].type=="radio" && obj[i].value==str)
obj[i].checked=true;
}
function doradio(){
var obj=document.getElementsByTagName("input")
for(var i=0;i<obj.length;i++)
if(obj[i].type=="radio" && obj[i].checked)
document.all.t1.value=obj[i].value
}
</script>
</head>
<body>
<span onclick="doradio()">ASP<input type="radio" name="r1" value=ASP><br>PHP<input type="radio" name="r1" value=PHP><br>AJAX<input type="radio" name="r1" value=AJAX><br>
<input type="text" name="t1" onchange="dochange(this.value)">
</body>
</html>