genny45,
<!DOCTYPE HTML>
<html>
<head>
<title>Untitled</title>
<meta charset="utf-8">
</head>
<body>
<script>
window.onclick = function onclickRadio1(event) {
var el = event.target;
if (el.type && el.type === 'radio' && el.checked)
el.form.querySelector('.price').innerHTML = el.value
}
</script>
<form>
<div class="element-textarea2">
<input type="radio" id="dplcment-01" name="nameRadio1" value="28" checked="checked"/>
<input type="radio" id="dplcment-02" name="nameRadio1" value="38"/>
<input type="radio" id="dplcment-03" name="nameRadio1" value="65"/>
</div>
<span class="price" id="result1">28</span>
</form>
<form>
<div class="element-textarea2">
<input type="radio" id="dplcment-01" name="nameRadio2" value="10" checked="checked"/>
<input type="radio" id="dplcment-02" name="nameRadio2" value="20"/>
<input type="radio" id="dplcment-03" name="nameRadio2" value="30"/>
</div>
<span class="price" id="result2">10</span>
</form>
<form>
<div class="element-textarea2">
<input type="radio" id="dplcment-01" name="nameRadio3" value="12" checked="checked"/>
<input type="radio" id="dplcment-02" name="nameRadio3" value="13"/>
<input type="radio" id="dplcment-03" name="nameRadio3" value="14"/>
</div>
<span class="price" id="result3">12</span>
</form>
</body>
</html>