$.ajax({
type: 'POST',
url: 'save.php',
data: {val: text1obj.value}
success: function(msg){
// msg: php返回内容
/* alert(修改成功); */
window.location = window.location;
},
error:function(msg){
// 提交失败
}
});

<SCRIPT LANGUAGE="JavaScript">
var bid=document.fenlei.bfenlei.value;
<?php
$sql1="select * from s_type where b_id='$bid'";
//.......
?>
</SCRIPT>

function saveGame(str){
window.location.href='url?str=' + str;
}

$.post(URL,{参数1:alue,参数2:value2},function(data){
//这里你可以处理获取的数据。我使用是json 格式。你也可以使用其它格式。或者为空，让它自己判断得了
},'json');

function changeshow()
{
var bid=document.fenlei.bfenlei.value;
var url = 'adm_mod_ajax.php';
var pars = 'mtype=1&mid=' + mid+'&bid='+bid;
var myAjax = new Ajax.Request(
url,
{method: 'post', parameters: pars, onComplete: showResponse}
);
}

<script>
function dailyTask(){
$('#my_daily_task_calendar').datepicker().on('changeDate.datepicker.amui', function(event) {
var dailyTaskDate=$(this).val();
var url1="{:url('task/getDailyTaskData')}";
var url2='?dailyTaskDate='+dailyTaskDate;
 document.location=url1+url2;
});
}
dailyTask();
</script>

var dailyTaskDate=$(this).val();
document.location={:url('task/getDailyTaskData',array('dailyTaskDate'=>dailyTaskDate))};