将table中的一列赋值到另一列

　2012-06-09 07:02:01　来源：WEB开发网　　　

核心提示： <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xm

<!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>
<script type="text/javascript" language="javascript" src="../js/jquery1.4.1.js"></script>

<script>
$(document).ready(function(){
	$("#checkbox_copy").click(function() {
		$('input[id ^=\'txt_value1\']').each(function(i){
			   var fontId =$(this).attr('id');
			   var secondId=fontId.substr(fontId.length-1);
			   
			   $("input[id ^='txt_value2"+secondId+"']").val($(this).val());
		 });
	});
});
</script>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
</head>

<body>
<div class="dialog">  
	<table width="200" border="1" cellspacing="0">
  <tr>
    <td>id</td>
    <td>value1</td>
    <td>value2</td>
  </tr>
  <tr>
    <td>1</td>
    <td><input name="txt_value11" type="text" id="txt_value11" value="xx" /></td>
    <td> <input type="text" name="txt_value11" id="txt_value21" /></td>
  </tr>
  <tr>
    <td>2</td>
    <td><input name="txt_value11" type="text" id="txt_value12" value="yy" /></td>
    <td> <input type="text" name="txt_value11" id="txt_value22" /></td>
  </tr>
  <tr>
    <td>3</td>
    <td><input name="txt_value11" type="text" id="txt_value13" value="zz" /></td>
    <td> <input type="text" name="txt_value11" id="txt_value21" /></td>
  </tr>
  <tr>
    <td>4</td>
    <td><input name="txt_value11" type="text" id="txt_value14" value="ww" /></td>
    <td> <input type="text" name="txt_value11" id="txt_value21" /></td>
  </tr>
</table>
<input type="checkbox" name="checkbox_copy" id="checkbox_copy" />
	<label for="checkbox_copy">value1 copy to valu2</label> 
</div>	
</body>
</html>