<script language="javascript"> 
var money=""; 

function getRadios(what){ 
// 라디오 버튼 네임 money 의 값 

j=what.gajung.length; 
for (i=0; i<j; i++){ 
if(what.gajung[i].checked) var money = what.gajung[i].value; 
} 
// money 라는 입력 필드 항목과 각 버튼 네임값을 같게함 
if(money==1200001){ what.money.value = 1200000; } 
else{what.money.value = money;} 

} 
//--> 
</script> 
<form name="signform" method="post"> 
<div onClick='getRadios(document.signform)'> 

<input type="radio" name="gajung" value="750000"> 
가격1<br> 
<input type="radio" name="gajung" value="450000"> 
가격2<br> 
<input type="radio" name="gajung" value="1200001"> 
가격3<br> 
</div> 
<br> 
<input type=text name="money" size=20 value='0'> 
</form>