复选框全选/全不选

wyl232 · 发表于 2013-1-27 05:05:35

<!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=gb2312" />
<title>无标题文档</title>
<style type="text/css">
p {margin:0;font-size:12px;line-height:26px;}
</style>
<script type="text/javascript">
function check_all(obj,cName)
{
    var checkboxs = document.getElementsByName(cName);
    for(var i=0;i<checkboxs.length;i++){checkboxs.checked = obj.checked;}
}
</script>
</head>

<body>
<p><input type="checkbox" name="all"  />全选/全不选</p>
<p><input type="checkbox" name="c" value="" /></p>
<p><input type="checkbox" name="c" value="" /></p>
<p><input type="checkbox" name="c" value="" /></p>
<p><input type="checkbox" name="c" value="" /></p>
</body>
</html>

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