Javascript音頻播放/停止

Question

仍然有問題 - 如果我的代碼播放選定的音頻，按鈕將不會切換。如果我包含$(document).ready(function(){，那麼按鈕切換但音頻不會播放！任何人都可以拯救我留下的小發型嗎？這是交付在iOS的HTML5 jQuery Mobile的項目5

感謝任何/所有幫助 Ĵ

代碼：

$(document).ready(function(){ 
var selSound = '18000'; //default to first sound. 
var play = false; //default to paused. 

function selectSound(id) { 
    selSound = id; 
} 

$('#playbtn').click(function() { 
    var $this = $(this); 
var a = document.getElementById(selSound); 
    if($this.text() == 'Zap!') { 
    $this.children().children().text('Stop'); 
    a.play(); 
} else { 
    $this.children().children().text('Zap!'); 
    a.pause(); 
    alert('Stopped playing song: '+selectedMP3); 



} 

}); 

}) 

HTML：

<div data-role="fieldcontain">  
     <fieldset data-role="controlgroup" > 
        <li data-swatch="b" class="ui-li ui-li-divider ui-btn ui-bar-a ui-corner-top" data-role="list-divider" role="" data-form="ui-bar-b">Select a frequency</li> 

    <input type="radio" name="mp3_option" id="selectSound('16000')" onclick="selectSound('16000')"><label for="selectSound('16000')">16Hz</label> 

    <input type="radio" name="mp3_option" id="selectSound('18000')" onclick="selectSound('18000')"><label for="selectSound('18000')">18Hz</label> 

    <input type="radio" name="mp3_option" id="selectSound('20000')" onclick="selectSound('20000')"><label for="selectSound('20000')">20Hz</label> 
</fieldset> 
<div style="text-align:center"><a href="#" data-role="button" data-inline="true" id="playbtn">Zap!</a></div></div> 

Answer 1

好吧，有點這是一個假設，但我認爲這是一個範圍問題。需要聲明的文件準備處理以外的變量和函數，但附加在它裏面的按鈕事件...

var selSound = '18000'; //default to first sound. 
var play = false; //default to paused. 

function selectSound(id) { 
    selSound = id; 
} 

$(document).ready(function(){ 
    $('#playbtn').click(function() { 
     var $this = $(this); 
     var a = document.getElementById(selSound); 
     if ($this.text() == 'Zap!') { 
      $this.children().children().text('Stop'); 
      a.play(); 
     } else { 
      $this.children().children().text('Zap!'); 
      a.pause(); 
      alert('Stopped playing song: ' + selectedMP3); 
     } 
    }); 
})