日期:2014-05-16 浏览次数:20584 次
<html>
<head>
<script language="javascript" src="myAJAXlib.js"></script>
<script language="javascript">
function cback(text){
alert(text);
}
</script>
</head>
<body>
<form name="form1">
<input type="button" value="test" onclick="doAjax('libtest.php','param=hello','cback','get','0')">
</body>
</html>
function createREQ(){
var req=false;
try{
req=new XMLHttpRequest();
}
catch(err1)
{
try{
req=new ActiveXObject("Msxml2.XMLHTTP");
}
catch(err2)
{
try{
req=new ActiveXObject("Microsoft.XMLHTTP");
}
catch(err3)
{
req=false;
}
}
}
return req;
}
function requestGET(url,query,req){
myRand=parseInt(Math.random()*99999);
req.open("GET",url+'?'+query+'&rand='+myRand,true);
req.send(null);
}
function requestPOST(url,query,req){
req.open("POST",url,true);
req.setRequestHeader('Content-Type','application.x-www-form-urlencoded');
req.send(query);
}
function doCallback(callback,item){
eval(callback+'(item)');
}
function doAjax(url,query,callback,reqtype,getxml){
var myreq=createREQ();
myreq.onreadystatechange=function(){
if(myreq.readyState==4){
if(myreq.status==200){
var item=myreq.responseText;
if(getxml==1){
item=myreq.responseXML;
}
doCallback(callback,item);
}
}
}
if(reqtype=='post'){
requestPOST(url,query,myreq);
}
else{
requestGET(url,query,myreq);
}
}
<?php
echo "Parameter value was".$param;
?>