osd-contiki/examples/sky-ip/sensors-script.js

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/* This is the uncompressed version of the script in httpd-fs/sensordata.shtml */
var start, d = document;
i = new Image(50,60);
i.src = "spin.gif";
function load() {
var img = d.getElementById("spin");
img.innerHTML = ' ';
loadData();
}
function loadData() {
var r;
try { r = new XMLHttpRequest(); }
catch(e) {
try { r = new ActiveXObject("Msxml2.XMLHTTP"); }
catch(e) {
try { r = new ActiveXObject("Microsoft.XMLHTTP"); }
catch(e) {
alert("Your browser does not support AJAX!");
return false;
}
}
}
r.onreadystatechange = function() {
if(r.readyState == 1) {
var img = d.getElementById("spin");
img.innerHTML = '<img src="spin.gif">';
}
if(r.readyState == 4) {
var img = d.getElementById("spin");
img.innerHTML = 'took ' +
((new Date()).getTime() - start.getTime()) / 1000 +
' seconds';
eval(r.responseText);
}
};
start = new Date();
r.open("GET", "/sensordata.shtml", true);
r.send(null);
}
function e(el) {
if(d.getElementById) {
return d.getElementById(el);
}
if (d.all) {
return d.all[el];
}
}
function s(el,n,max,text) {
e(el).innerHTML = '<table width=504 border=0 cellpadding=1 cellspacing=0>'+
'<tr><td width=200>' +
text + '</td>' +
'<td width=' + (300*n/max) + ' bgcolor="gray">&nbsp;</td>' +
'<td width=' + (300-300*n/max) + ' bgcolor="lightgray">&nbsp;</td>' +
'</table>';
}
function dc(n,d) {
return n.toFixed(d);
}
function t(m) {
n = dc(-39.6+0.01*m, 1);
s('temp',n,40,'Temperature '+n+' &deg;C');
}
function h(m) {
n = dc(-4+0.0405*m - 2.8e-6*(m*m), 2);
s('hum',n,100,'Humidity '+n+'%');
}
function l1(m) {
n = dc(.7629394375*m, 0);
s('l1',n,200,'Light 1 '+n);
}
function l2(m) {
n = dc(.4693603*m, 0);
s('l2',n,200,'Light 2 '+n);
}
function rs(m) {
n = m + 45;
s('rs',n,100,'RSSI '+n);
}
function p(c,l,t,r) {
tm=c+l;
cp=c*1.8/tm;
lp=l*0.0545/tm;
lt=t*17.7/tm;
lr=r*20/tm;
n=cp+lp+lt+lr;
s('p',n,30,'Power consumption '+dc(n,2)+' mW');
s('pc',cp,30,'CPU power '+dc(cp,2)+' mW');
s('pl',lp,30,'LPM power '+dc(lp,2)+' mW');
s('pr',lr,30,'Radio RX power '+dc(lr,2)+' mW');
s('pt',lt,30,'Radio TX power '+dc(lt,2)+' mW');
}
function i(n) {
e('i').innerHTML = n;
}