YUIボタンの使い方

<link rel="stylesheet" type="text/css"
href="http://yui.yahooapis.com/2.5.0/build/button/assets/skins/sam/button.css"> 

<input type="button" id="submitbutton1" value="submit"
onClick="makeRequest();">

<script type="text/javascript"
src="http://yui.yahooapis.com/2.5.0/build/button/button-min.js"
></script>

<script type="text/javascript">
var oSubmitButton1 = new YAHOO.widget.Button("submitbutton1");
</script>

<script type="text/javascript">
var oSubmitButton1 = new YAHOO.widget.Button("submitbutton1");

// これを追加！
oSubmitButton1.addListener("click", function(){ makeRequest();});
</script>