A-yuan 程式設計: 4月 2016

2016年4月29日星期五

<html>
	<head>
	<meta http-equiv="Content-Type" content="text/html; charset=BIG5">
	<title>第一支javaScript</title>
	</head>
	<body>

	<form action="#" method="post" class="demoForm" id="demoForm">
	<fieldset>
	<legend>Demo: Get Value of Selected</legend>

	<p>Select a shipping method:</p>
	<p>
	<label><input type="radio" name="ship" value="a" checked /> a)Standard Ground</label>
	<label><input type="radio" name="ship" value="b" />b) Second Day</label>
	<label><input type="radio" name="ship" value="c" /> c)Overnight</label>
	<label><input type="radio" name="ship" value="d" /> d)Pick up</label>
	</p>

	<p><button type="button" name="getVal">Get Value of Selected</button></p>

	</fieldset>
	</form>
	</Script>
	<script type="text/javascript">
	// to remove from global namespace
	(function() {

	function getRadioVal(form, name) {
	var val;
	var radios = form.elements[name];

	for (var i=0, len=radios.length; i<len; i++) {
	if ( radios[i].checked ) {
	val = radios[i].value;
	break;
	}
	}
	return val;
	}


	document.forms['demoForm'].elements['getVal'].onclick = function() {
	alert( 'The selected radio button\'s value is: ' + getRadioVal(this.form, 'ship') );
	};


	// disable submission of all forms on this page
	for (var i=0, len=document.forms.length; i<len; i++) {
	document.forms[i].onsubmit = function() { return false; };
	}

	}());
	</script>
	</body>
	</html>