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<script type="text/javascript">
function add(){
var oTable = document.getElementById("addtr");
var oTr = document.getElementById("addtr").rows[1];
if(oTable.rows.length == 2 && oTr.style.display == "none"){
oTr.style.display = "";
}else {
var newTr = oTr.cloneNode(true);
document.getElementById("addtr").getElementsByTagName("tbody")[0].appendChild(newTr);
}
}
function deleteline(){
var oTable = document.getElementById("addtr");
var checkedTr = document.getElementsByName("del");
var delIndex = "";
for(var i = 0; i< checkedTr.length ; i++){
if(checkedTr[i].checked){
delIndex += i+1+",";
}
}
var delTrs = delIndex.split(",");
var num = 0;
for(var t = 0 ; t< delTrs.length -1 ;t++){
if(oTable.rows.length == 2){
checkedTr[0].checked = false;
oTable.rows[1].style.display = "none";
break;
}
if(delTrs[t] != ""){
oTable.deleteRow(parseInt(delTrs[t])-num++);
}
}
}
</script>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档 </title>
<style type="text/css">
body{background:#FFFFFF;}
</style>
<script type="text/javascript">
var i =0;
function add(){
var oTr = document.getElementById("addtr").rows[1];
var newTr = oTr.cloneNode(true);
document.getElementById("addtr").getElementsByTagName("tbody")[0].appendChild(newTr);
}
function deleteline(){
var oTable = document.getElementById("addtr");
var checkedTr = document.getElementsByName("del");
var delIndex = "";
for(var i = 0; i< checkedTr.length ; i++){
if(checkedTr[i].checked){
delIndex += i+1+",";
}
}
var delTrs = delIndex.split(",");
var num = 0;
for(var t = 0 ; t< delTrs.length -1 ;t++){
if(oTable.rows.length == 2){
alert("can not delete last row ");
break;
}
if(delTrs[t] != ""){
oTable.deleteRow(parseInt(delTrs[t])-num++);
}
}
}
</script>
</head>
<body>
<input type="button" id="b1" value="Add Line" onclick="add()" />
<input type="button" id="b2" value="Delete Line" onclick="deleteline()" />
<table width="700" border="0" cellspacing="0" cellpadding="0" id="addtr">
<tr id="trId">
<td align="center" bgcolor="#CCCCCC">AA </td>
<td align="center" bgcolor="#CCCCCC">BB </td>
<td align="center" bgcolor="#CCCCCC">CC </td>
<td align="center" bgcolor="#CCCCCC">DD </td>
<td align="center" bgcolor="#CCCCCC">EE </td>
<td align="center" bgcolor="#CCCCCC">FF </td>
<td align="center" bgcolor="#CCCCCC">GG </td>
<td align="center" bgcolor="#CCCCCC">HH </td>
<td align="center" bgcolor="#CCCCCC">DEL </td>
</tr>
<tr>
<td align="center"> <input size="10" type="text" name="a" /> </td>
<td align="center"> <input size="10" type="text" name="b" /> </td>
<td align="center" height="20">
<select name="c" >
<option value="-1" selected="selected">Please select </option> </select> </td>
<td align="center"> <input size="10" type="text" name="c" /> </td>
<td align="center"> <input type="checkbox" name="d"/> </td>
<td align="center"> <input type="checkbox" name="e"/> </td>
<td align="center"> <input size="10" type="text" name="f" /> </td>
<td align="center"> <input size="10" type="text" name="g" /> </td>
<td align="center"> <input type="checkbox" name="del" id="del"/> </td>
</tr>
</table>
</body>
</html>
function deleteline(){
for(var i=document.getElementsByName("del").length-1;i>=0;i--) {
if(document.getElementsByName("del")[i].checked==true){ //这里要如何书写的好呢?我试了好久都不可以...谢谢...
//alert(document.getElementsByName("del")[i].parentNode.parentNode.rowIndex);
document.all("addtr").deleteRow(document.getElementsByName("del")[i].parentNode.parentNode.rowIndex);
}
}
}