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dio_page.html
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<html>
<head>
<title>DIO page</title>
<script>
function AJAX(url, callback)
{
var req = AJAX_init();
req.onreadystatechange = AJAX_processRequest;
function AJAX_init() {
if (window.XMLHttpRequest) {
return new XMLHttpRequest();
} else if (window.ActiveXObject) {
return new ActiveXObject('Microsoft.XMLHTTP');
}
};
function AJAX_processRequest() {
if(req.readyState == 4) {
if(req.status == 200) {
if(callback)
callback(req.responseText);
}
}
};
this.doGet = function() {
req.open('GET', url, true);
req.send(null);
};
this.doPost = function(body) {
req.open('POST', url, true);
req.setRequestHeader('Content-Type',
'application/x-www-form-urlencoded');
req.setRequestHeader('ISAJAX','yes');
req.send(body);
};
};
function $(id){return document.getElementById(id);}
function $$(id){return document.getElementsByName(id);}
function $$_ie(tag, name){
if(!tag){tag='*';}
var elems=document.getElementsByTagName(tag);
var res=[];
for(var i=0;i<elems.length;i++){
att=elems[i].getAttribute('name');
if(att==name){
res.push(elems[i]);
}
}
return res;
}
function selset(id,val){
var o=$(id);
for(var i=0;i<o.options.length;i++){
if(i==val){
o.options[i].selected=true;
break;
}
}
}
function selset_name(name, val){
var o=$$(name);
for(var i=0;i<o.options.length;i++){
if(i==val){
o.options[i].selected=true;
break;
}
}
}
function getDiostate(o) {
var p=o.attributes['pin'].value;
var oUpdate;
oUpdate=new AJAX('get_dio'+p+'.cgi',function(t){try{eval(t);}catch(e){alert(e);}});
oUpdate.doGet();
}
function setDiostate(o){
var p=o.attributes['pin'].value;
/*var v=$('txtdio_s'+p).value;*/
var v=o.attributes['val'].value;
dout=new AJAX('set_dio.cgi', function(t){try{eval(t);}catch(e){alert(e);}});
dout.doPost('pin='+p+'&val='+v);
}
</script>
</head>
<body>
<h1>LED Control example</h1>
<input type='button' value='LED R On' pin='8' val='0' onclick='setDiostate(this);'>
<input type='button' value='LED R Off' pin='8' val= '1' onclick='setDiostate(this);'>
<br>
<input type='button' value='LED G On' pin='9' val='0' onclick='setDiostate(this);'>
<input type='button' value='LED G Off' pin='9' val= '1' onclick='setDiostate(this);'>
<br>
<input type='button' value='LED B On' pin='5' val='0' onclick='setDiostate(this);'>
<input type='button' value='LED B Off' pin='5' val= '1' onclick='setDiostate(this);'>
</body>
</html>