big js refactoring

kvmd/web/js/tools.js

@@ -0,0 +1,27 @@
+var tools = new function() {
+	this.makeRequest = function(method, url, callback) {
+		var http = new XMLHttpRequest();
+		http.open(method, url, true)
+		http.onreadystatechange = callback;
+		http.send();
+		return http;
+	};
+
+	this.setButtonBusy = function(el_button, busy) {
+		el_button.disabled = busy;
+		el_button.style.cursor = (busy ? "wait" : "default");
+	};
+
+	var __debug = (new URL(window.location.href)).searchParams.get("debug");
+
+	this.debug = function(...args) {
+		if (__debug) {
+			console.log(...args);
+		}
+	};
+
+	this.info = console.log;
+	this.error = console.error;
+};
+
+var $ = function(id) { return document.getElementById(id); };