フォームの値を動的に取得する
全角入力で入力確定前でも
IE8対応

サンプル


html
<div>
	<form name="sampleForm" action="" method="post">
		<input type="text" name="ps" value="" style="width:300px;">
	</form>
	<div id="result"></div>
</div>

js
(function(){
	function addEvent(element, type, listener, flg) {
	    if (!element || typeof(element) == "undefined") {
	        return
	    }
	    if (element.addEventListener) {
	        element.addEventListener(type, listener, flg);
	    } else {
	        element.attachEvent('on' + type, function() {
	            listener.call(element, window.event);
	        });
	    }
	}
	function init(){
		addEvent(document.sampleForm.ps, ('oninput' in window) ? 'input':'propertychange', function(e){
			document.getElementById('result').innerHTML = document.sampleForm.ps.value;
		}, true);
		addEvent(document.sampleForm, 'submit', function(e){
			e.preventDefault();
		});
	}

	addEvent(window,'load',function(){
		init();
	},true);
})();