检测按钮所在行
我想通过点击button触发change（this）事件，获取按钮所在行的id，然后调用changeTotext()方法，使所需要的单元格变换成文本框来进行修改数据，function change（obj）{}方法不会写。
<br>
nbsp;html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><br>
<br>
<br>
<meta><br>
<title>Insert title here</title><br>
<script><br />
function showtd(num) { <br />
document.getElementById("bg"+num).style.display = "none";<br />
document.getElementById("show"+num).style.display = "block";<br />
}<br />
function hidetd(num) {<br />
document.getElementById("bg"+num).style.display = 'block';<br />
document.getElementById("show"+num).style.display = 'none';<br />
}<br />
<br />
function changeTotext() <br />
{ <br />
var tdValue = obj.innerText; <br />
obj.innerText = ""; <br />
var txt = document.createElement("input"); <br />
txt.type = "text"; <br />
txt.value = tdValue; <br />
txt.id = "_text_000000000_"; <br />
txt.setAttribute("className","text"); <br />
obj.appendChild(txt); <br />
txt.select(); <br />
} <br />
<br />
function change(obj){<br />
<br />
<br />
}<br />
<br />
function mouseup(){ <br />
if (document.getElementById("sort_t") && event.srcElement.id != "sort_t") <br />
{ <br />
var obj = document.getElementById("sort_t").parentElement; <br />
var txtValue = document.getElementById("sort_t").value; <br />
obj.innerText = txtValue; <br />
} <div class="clear">
</script>
