function doLoad(value) {
    // Create new JsHttpRequest object.
    var req = new JsHttpRequest();
    // Code automatically called on load finishing.
    req.onreadystatechange = function() {
        if (req.readyState == 4) {
            // Write result to page element (_RESULT become responseJS). 
            document.getElementById('sp').innerHTML = 
				req.responseJS.speeds;
            document.getElementById('hs').innerHTML = 
				req.responseJS.heights;
				//req.responseText;
        }
    }
    // Prepare request object (automatically choose GET or POST).
    req.open(null, '/lib2/getselect.php', true);
    // Send data to backend.
    req.send( { q: value } );
}

function loadform() {
	doLoad(document.getElementById('f'));
}