js单击下拉框双击变输入框

JavaScript011

js单击下拉框双击变输入框,第1张

select 好像不响应双击事件；

建议用右键代替双击：

<script>

function show()

{ var a=document.getElementById("div1")

if (event.button==2)

{a.style.display=a.style.display=="none"?"":"none"

}

}

</script>

<select onmousedown="show()">

<option>aaaa</option>

<option>bbb</option>

<option>ccc</option>

<option>dddd</option>

</select>

<div id="div1" style="display:none">

<textarea ></textarea>

</div>

</script>

</head><body>

<select id="selectlist" onchange="selectvalue(this.value)">

<option value="" selected="selected">请选择值</option>

<option value="值1">值1</option>

<option value="值2">值2</option>

<option value="值3">值3</option>

<option value="值4">值4</option>

</select>

</body>