function checkEvent(name,allCheckId)
{
var allCk=document.getElementById(allCheckId);
if(allCk.checked==true)
checkAll(name);
else
checkAllNo(name);
}
//全选
function checkAll(name)
{
var names=document.getElementsByName(name);
var len=names.length;
if(len>0)
{
var i=0;
for(i=0;i<len;i++)
names[i].checked=true;
}
}
//全不选
function checkAllNo(name)
{
var names=document.getElementsByName(name);
var len=names.length;
if(len>0)
{
var i=0;
for(i=0;i<len;i++)
names[i].checked=false;
}
}
//反选
function reserveCheck(name)
{
var names=document.getElementsByName(name);
var len=names.length;
if(len>0)
{
var i=0;
for(i=0;i<len;i++)
{
if(names[i].checked)
names[i].checked=false;
else
names[i].checked=true;
}
}
}
function show()
{
var n=document.getElementsByName("ck");
var len=n.length;
if(len>0)
{
var i=0;
for(i=0;i<len;i++)
{
if(n[i].checked==true)
alert(n[i].value);
}
}
}
//如果没有选中元素，则提示
function send()
{
var n=document.getElementsByName("ck");
var len=n.length;
var num=0;
for(i=0;i<len;i++)
{
if(n[i].checked==true)
num=num+1;
}
if(num==0){
alert("请选择发送的手机号码！");
}
else{
document.form2.action="sendsms.jsp";
document.form2.submit();
}
}
----------------------------------------------------------------------------------------------------------------
html:
<input type="checkbox" id="ckall" onclick="checkEvent('ck','ckall')" />全选
<input type="checkbox" name="ck" value="value"/>
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用隐藏域传checkbox中的值
String[] names=null;
names=request.getParameterValues("ck");
<%for(int i=0;i<names.length;i++){ %>
<input type="hidden" value=<%=names[i]%> name="phone"/><%} %>