function liveUpdaterUri(uri) { return liveUpdater(function() { return uri; }); } function addParameter(uri, key, value) { var separator = "?"; if(uri.indexOf("?") >= 0) separator = "&"; return uri + separator + key + "=" + escape(value); } function liveUpdater(uriFunc) { var request = false; var regex = /<(\w+).*?id="(\w+)".*?>((.|\n)*)<\/\1>/; if (window.XMLHttpRequest) { request = new XMLHttpRequest(); } function update() { if(request && request.readyState < 4) request.abort(); if(!window.XMLHttpRequest) request = new ActiveXObject("Microsoft.XMLHTTP"); request.onreadystatechange = processRequestChange; request.open("GET", addParameter(uriFunc(), "timestamp", (new Date()).getTime().toString())); request.send(null); return false; } function processRequestChange() { if(request.readyState == 4) { var results = regex.exec(request.responseText); if(results) { document.getElementById(results[2]).innerHTML = results[3]; } else { var bodyRegex = /(.*)?<\/body>/; var body = bodyRegex.exec(request.responseText); if ( body ) { document.body.innerHTML = body[1]; } else { document.body.innerHTML = request.responseText; } } } } return update; } function liveSelect(id, uri) { function constructUri() { return addParameter(uri, "s", document.getElementById(id).selectedIndex.toString()); } return liveUpdater(constructUri); } function liveSearch(id, uri) { function constructUri() { return addParameter(uri, "s", document.getElementById(id).value); } var updater = liveUpdater(constructUri); var last = ""; var timeout = false; function update() { if (last != document.getElementById(id).value) updater(); } function start() { if (timeout) window.clearTimeout(timeout); timeout = window.setTimeout(update, 300); } if (navigator.userAgent.indexOf("Safari") > 0) document.getElementById(id).addEventListener("keydown",start,false); else if (navigator.product == "Gecko") document.getElementById(id).addEventListener("keypress",start,false); else document.getElementById(id).attachEvent("onkeydown",start); } function timedUpdate(uriFunc, milliSeconds) { var updater = liveUpdaterUri(uriFunc); updater(); var again = "timedUpdate(\""+uriFunc+"\","+milliSeconds+")"; setTimeout(again, milliSeconds); }