<!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>llr</title>
<script language="javascript">
//复选框全选的方法
function selAll(obj)
{
var o=document.getElementsByName("che");
for(var i=0;i<o.length;i++)
{
if(obj.checked==true)
o[i].checked=true;
else
o[i].checked=false;
}
}
//判断是否全部被选中,如果选中全选复选框被选中,反之未被选中
function selFirst()
{
var o=document.getElementsByName("che");
var count=0,num=0;
for(var i=0;i<o.length-1;i++)
{
if(o[i+1].checked==true)
{
count++;
}
if(o[i+1].checked==false)
{
num++;
}
}
if(count==o.length-1)
{
o[0].checked=true;
}
if(num>0)
{
if(o[0].checked==true)
{
o[0].checked=false;
}
}
}
</script>
</head>
<body leftmargin="5" topmargin="5" >
<table width="700" border="0" id="table" cellpadding="2" cellspacing="1" class="maintable" align="center" style="margin-top:8px" >
<tr align="center" class="tr2" >
<td><input name="che" type="checkbox" value="1" οnclick="selAll(this)">全选</td>
</tr>
<tr class="tr2" align="center" >
<td><input name="che" type="checkbox" οnclick="selFirst()" value="<s:property value="1"/>1</td>
<td><input name="che" type="checkbox" οnclick="selFirst()" value="<s:property value="2"/>2</td>
<td><input name="che" type="checkbox" οnclick="selFirst()" value="<s:property value="3"/>3</td>
</tr>
</table>
</body>
</html>