diff --git a/client/dcwebui.ts b/client/dcwebui.ts
index 79f303c..296f9e9 100644
--- a/client/dcwebui.ts
+++ b/client/dcwebui.ts
@@ -5,11 +5,34 @@ import * as io from 'socket.io-client'
 
 "use strict";
 
+/**
+ * Display value when loading a saved password
+ */
 var SENTINEL_PASSWORD = "************";
-var CHAT_SCROLLBACK_LIMIT = 200; // Once over 2x $limit, the first $limit will be trimmed off the list
+
+/**
+ * Number of lines of chat to keep in the scroll area.
+ * Once there are over 2x $limit lines, the first $limit lines will be trimmed off the list
+ */
+var CHAT_SCROLLBACK_LIMIT = 200; 
+
+/**
+ * Our externally-accessible URL
+ */
 var EXTERN_ROOT = window.location.protocol + "//" + window.location.host + "/";
 
-var nmdc_escape = function(str) {
+// Help out the braindead minifier, use these functions instead
+var document_getElementById = document.getElementById;
+var document_getElementsByClassName = document.getElementsByClassName;
+var document_createElement = document.createElement;
+var document_addEventListener = document.addEventListener;
+
+/**
+ * Encode a string for NMDC
+ * 
+ * @param str 
+ */
+var nmdc_escape = function(str: string): string {
 	return (
 		(''+str).length
 			? (''+str).replace(/&/g,'&').replace(/\|/g,'|').replace(/\$/g,'$')
@@ -17,14 +40,24 @@ var nmdc_escape = function(str) {
 	);
 };
 
-var hesc = function(s) {
+/**
+ * Encode a string for HTML
+ * 
+ * @param s 
+ */
+var hesc = function(s: string): string {
 	var filter = {
 		'&': '&amp;', '<': '&lt;', '>': '&gt;', '"': '&#34;', '\'': '&#39;'
 	};
 	return s.toString().replace(/[&<>'"]/g, function(s) { return filter[s]; });
 };
 
-var fmtBytes = function(b) {
+/**
+ * Format a number of bytes as a human-readable string
+ * 
+ * @param b 
+ */
+var fmtBytes = function(b: number): string {
 	if (b == 0) {
 		return '(nothing)';
 	}
@@ -35,12 +68,21 @@ var fmtBytes = function(b) {
 	return parseFloat((b / Math.pow(k, i)).toFixed(3)) + sizes[i];
 };
 
-
-var urldesc = function(s) {
+/**
+ * Decode a string that was previously encoded in raw-url format.
+ * 
+ * @param s 
+ */
+var urldesc = function(s: string):string {
 	return decodeURIComponent(s.replace(/\+/g, " "));
 }
 
-var linkify = function(str) {
+/**
+ * Enhance an HTML string by automatically making links clickable, etc.
+ * 
+ * @param str An HTML-safe string 
+ */
+var linkify = function(str : string):string {
 	// n.b. str is already hesced
 	return (str
 		.replace(
@@ -54,17 +96,39 @@ var linkify = function(str) {
 	);
 };
 
-var sanitise = function(s) {
+/**
+ * Convert a plain-text string into an enhanced, HTML-safe string.
+ * 
+ * @param s 
+ */
+var sanitise = function(s:string): string {
 	return linkify(hesc(s));
 };
 
-var textContent = function($el) {
-	if ($el.textContent) return $el.textContent;
-	if ($el.innerText) return $el.innerText;
+/**
+ * Retrieve the plain-text content from an HTML element in a browser-compatible way.
+ * 
+ * @param $el
+ */
+var textContent = function($el : HTMLElement) : string {
+	if ($el.textContent) {
+		return $el.textContent;
+	}
+
+	if ($el.innerText) {
+		return $el.innerText;
+	}
+
 	return "";
 };
 
-var negmod = function(l, r) {
+/**
+ * Calculate the positive modulo of (l % r).
+ * 
+ * @param l 
+ * @param r 
+ */
+var negmod = function(l:number, r:number):number {
 	var ret = l % r;
 	if (l < 0) {
 		return ret + r;
@@ -73,16 +137,27 @@ var negmod = function(l, r) {
 	}
 };
 
-// @ref https://developer.mozilla.org/en/docs/Web/API/WindowBase64/Base64_encoding_and_decoding
-var b64 = function(str) {
+/**
+ * Encode a string to base64 in a UTF8-safe way.
+ * 
+ * @ref https://developer.mozilla.org/en/docs/Web/API/WindowBase64/Base64_encoding_and_decoding
+ * @param str 
+ */
+var b64 = function(str : string):string {
     return btoa(encodeURIComponent(str).replace(/%([0-9A-F]{2})/g, function(match, p1) {
         return String.fromCharCode(parseInt('0x' + p1));
     })).replace(/=/g, '');
 }
 
-// @ref https://gist.github.com/eligrey/1276030
-var appendInnerHTML = function($el, html) {
-	var child = document.createElement("span");
+/**
+ * Append content to an HTML element in a browser-compatible way.
+ * 
+ * @ref https://gist.github.com/eligrey/1276030
+ * @param $el
+ * @param html 
+ */
+var appendInnerHTML = function($el: HTMLElement, html:string) {
+	var child = document_createElement("span");
 	child.innerHTML = html;
 	
 	var node;
@@ -91,30 +166,48 @@ var appendInnerHTML = function($el, html) {
 	}
 };
 
-// @ref http://stackoverflow.com/a/5598797
-function getOffsetLeft( elem ) {
+/**
+ * Retrieve the left offset of a DOM element relative to the document.
+ * 
+ * @ref http://stackoverflow.com/a/5598797
+ * @param elem 
+ */
+function getOffsetLeft( elem: HTMLElement ):number {
     var offsetLeft = 0;
 	do {
 		if (!isNaN(elem.offsetLeft)) {
 			offsetLeft += elem.offsetLeft;
 		}
-	} while (elem = elem.offsetParent);
+	} while (elem = <HTMLElement>elem.offsetParent);
 	return offsetLeft;
 }
 
-function getOffsetTop( elem ) {
+/**
+ * Retrieve the top offset for a DOM element relative to the document.
+ * 
+* @ref http://stackoverflow.com/a/5598797
+ * @param elem 
+ */
+function getOffsetTop( elem: HTMLElement ):number {
     var offsetTop = 0;
 	do {
 		if (!isNaN(elem.offsetTop)) {
 			offsetTop += elem.offsetTop;
 		}
-	} while (elem = elem.offsetParent);
+	} while (elem = <HTMLElement>elem.offsetParent);
 	return offsetTop;
 }
 
 /* */
 
-var date_format = function(d, format) {
+/**
+ * Format a string in a date format, analgous to strftime().
+ * 
+ * @param d
+ * @param format Formatting string, supporting HisYmd character specifiers
+ * @return Plain text string
+ */
+var date_format = function(d:Date, format:string):string {
 	var pad = function(s) {
 		return (s < 10) ? '0'+s : ''+s ;
 	};
@@ -123,15 +216,20 @@ var date_format = function(d, format) {
 	ret = ret.replace(/H/g, pad(d.getHours()));
 	ret = ret.replace(/i/g, pad(d.getMinutes()));
 	ret = ret.replace(/s/g, pad(d.getSeconds()));
-	ret = ret.replace(/Y/g, d.getFullYear());
+	ret = ret.replace(/Y/g, "" + d.getFullYear());
 	ret = ret.replace(/m/g, pad(d.getMonth() + 1));
 	ret = ret.replace(/d/g, pad(d.getDate()));
 	return ret;
 };
 
-/* */
-
-var notify = function(title, body, tab) {
+/**
+ * Emit an HTML5 notification.
+ * 
+ * @param title 
+ * @param body 
+ * @param tab 
+ */
+var notify = function(title:string, body:string, tab:string) {
 	if (!("Notification" in window)) {
 		return; // not supported by browser
 	}
@@ -164,7 +262,7 @@ var notify = function(title, body, tab) {
 /* Tab writers */ 
 
 var write = function(tab) {
-	var $tab = document.getElementById("inner-"+tab);
+	var $tab = document_getElementById("inner-"+tab);
 	return {
 		'cls': function() {
 			$tab.innerHTML = '';
@@ -240,11 +338,11 @@ var userlist = {
 	'add': function(u) {
 		if (this.has(u)) return;
 		
-		var userlists = document.getElementsByClassName("userlist");
+		var userlists = document_getElementsByClassName("userlist");
 		for (var l = 0, e = userlists.length; l !== e; ++l) {
 			var userlist = userlists[l];
 			
-			var to_add = document.createElement('li');
+			var to_add = document_createElement('li');
 			to_add.className = "user-" + b64(u);
 			to_add.innerHTML = hesc(u);
 			
@@ -269,7 +367,7 @@ var userlist = {
 		return this;
 	},
 	'del': function(u) {
-		var userlists = document.getElementsByClassName("userlist");
+		var userlists = document_getElementsByClassName("userlist");
 		for (var l = 0, e = userlists.length; l !== e; ++l) {
 			if (! userlists[l].children) continue;
 			var userlist = userlists[l];
@@ -286,7 +384,7 @@ var userlist = {
 		return this;
 	},
 	'clear': function() {
-		var userlists = document.getElementsByClassName("userlist");
+		var userlists = document_getElementsByClassName("userlist");
 		for (var i in userlists) {
 			if (! userlists[i].children) continue;
 			var userlist = userlists[i];
@@ -299,22 +397,22 @@ var userlist = {
 		return this;
 	},
 	'names': function() {
-		var userlist = document.getElementsByClassName("userlist")[0].children;
+		var userlist = document_getElementsByClassName("userlist")[0].children;
 		var ret = [];
 		for (var i = 0, e = userlist.length; i < e; ++i) {
-			ret.push( textContent(userlist[i]) );
+			ret.push( textContent((<HTMLElement>userlist[i])) );
 		}
 		return ret;
 	},
 	'has': function(u) {
-		return document.getElementsByClassName("user-" + b64(u)).length !== 0; /* there are two - large and non-large */
+		return document_getElementsByClassName("user-" + b64(u)).length !== 0; /* there are two - large and non-large */
 	},
 	'count': function() {
-		return document.getElementsByClassName("userlist")[0].children.length;
+		return document_getElementsByClassName("userlist")[0].children.length;
 	},
 	'setInfo': function(nick, props) {
 		var baseClass = "user-" + b64(nick);
-		var $el = document.getElementsByClassName("" + baseClass);
+		var $el = document_getElementsByClassName("" + baseClass);
 		var prop_str = [];
 		if (props.Description.length > 0) {
 			prop_str.push(props.Description);
@@ -343,7 +441,7 @@ var userlist = {
 };
 
 var submit = function() {
-	var str = (<HTMLInputElement>document.getElementById("chatbox")).value;
+	var str = (<HTMLInputElement>document_getElementById("chatbox")).value;
 	if (! str.length) return;
 
 	if (hub_state === STATE_READY_FOR_LOGIN) {
@@ -386,7 +484,7 @@ var submit = function() {
 		write("tab-main").system("Invalid internal state.");
 	}
 	
-	(<HTMLInputElement>document.getElementById("chatbox")).value = '';
+	(<HTMLInputElement>document_getElementById("chatbox")).value = '';
 };
 
 /* page visibility */
@@ -412,7 +510,7 @@ var pagevis_setup = function(fnActive, fnInactive) {
 		pagevis_currently_visible = true
 		
 	} else {		
-		document.addEventListener(vc, function() {
+		document_addEventListener(vc, function() {
 			if (document[h]) {
 				pagevis_currently_visible = false;
 				fnInactive();
@@ -433,13 +531,13 @@ var pagevis_setup = function(fnActive, fnInactive) {
  */
 var tab_set = function(tab) {
 	
-	var tabs = document.getElementsByClassName("tabpane");
+	var tabs = document_getElementsByClassName("tabpane");
 	for (var i in tabs) {
 		try {
 			(<HTMLElement> tabs[i]).style.display = (tabs[i].id === tab ? 'block' : 'none');
 		} catch (e) {};
 	}
-	var tabitems = document.getElementsByClassName("tabitem");
+	var tabitems = document_getElementsByClassName("tabitem");
 	for (var i in tabitems) {
 		try {
 			// Update UNREAD/SELECTED flags for the target
@@ -467,13 +565,13 @@ var tab_set = function(tab) {
 	updateTitle();
 	
 	write(tab).scroll();
-	document.getElementById("chatbox").focus();
+	document_getElementById("chatbox").focus();
 	last_tab = tab;
 	
 };
 
 var tab_new = function(id, name) {
-	appendInnerHTML(document.getElementById("bar"),
+	appendInnerHTML(document_getElementById("bar"),
 		' <div class="tabitem" data-tab="tab-ext-'+id+'" id="tabitem-tab-ext-'+id+'">'+
 			'<span class="tab-label">'+
 				hesc(name)+
@@ -481,7 +579,7 @@ var tab_new = function(id, name) {
 			'<a class="tab-closer" data-tab="tab-ext-'+id+'">&times;</a>'+
 		'</div> '
 	);
-	appendInnerHTML(document.getElementById("extratabs"),
+	appendInnerHTML(document_getElementById("extratabs"),
 		' <div class="tabpane content placement-mid" id="tab-ext-'+id+'" style="display:none;">'+
 			'<div class="content-inner" id="inner-tab-ext-'+id+'"></div>'+
 		'</div>'
@@ -494,10 +592,10 @@ var tab_free = function(id) {
 	if (id === "tab-main") return;
 
 	// remove tab item and body
-	var $el = document.getElementById("tabitem-"+id);
+	var $el = document_getElementById("tabitem-"+id);
 	$el.parentNode.removeChild($el);
 	
-	$el = document.getElementById(""+id);
+	$el = document_getElementById(""+id);
 	$el.parentNode.removeChild($el);
 	
 	// clear from PM tabs
@@ -532,7 +630,7 @@ var noprop = function(ev) {
 }
 
 var tab_addHandlers = function() {
-	var tabitems = document.getElementsByClassName("tabitem");
+	var tabitems = document_getElementsByClassName("tabitem");
 	for (var i = 0; i < tabitems.length; i++) {
 		if (! tabitems[i]) {
 			continue;
@@ -545,7 +643,7 @@ var tab_addHandlers = function() {
 		};
 	}
 	
-	var tabclosers = document.getElementsByClassName("tab-closer");
+	var tabclosers = document_getElementsByClassName("tab-closer");
 	for (var i = 0; i < tabclosers.length; i++) {
 		if (! tabclosers[i]) {
 			continue;
@@ -587,7 +685,7 @@ var tabcomplete_state = '';
 
 var tabcompletion_start = function(direction) {
 	
-	var cursor = (<HTMLInputElement>document.getElementById("chatbox")).value.replace(/^.*\s([^\s]+)$/, '$1');
+	var cursor = (<HTMLInputElement>document_getElementById("chatbox")).value.replace(/^.*\s([^\s]+)$/, '$1');
 	
 	if (tabcomplete_state === '') {
 		// new tab completion
@@ -623,7 +721,7 @@ var tabcompletion_start = function(direction) {
 	
 	// Replace in textbox
 	
-	var $chatbox = (<HTMLInputElement>document.getElementById("chatbox"));
+	var $chatbox = (<HTMLInputElement>document_getElementById("chatbox"));
 	var chatprefix = $chatbox.value.substr(0, $chatbox.value.length - cursor.length);
 	
 	$chatbox.value = chatprefix + targetName;
@@ -639,11 +737,11 @@ var tabcompletion_inactive = function() {
 var MenuList = function(el) {
 	this.el = el;
 	
-	this.div = document.createElement("div");
+	this.div = document_createElement("div");
 	this.div.classList.add("menu");
 	this.div.style.position = "absolute";
 	
-	this.ul = document.createElement("ul");
+	this.ul = document_createElement("ul");
 	this.div.appendChild(this.ul);
 	
 	document.body.appendChild(this.div);
@@ -655,7 +753,7 @@ MenuList.prototype.clear = function() {
 	}
 };
 MenuList.prototype.add = function(txt, cb) {
-	var li = document.createElement("li");
+	var li = document_createElement("li");
 	li.innerHTML = txt;
 	li.onclick = cb;
 	this.ul.appendChild(li);
@@ -676,7 +774,7 @@ MenuList.prototype.toggle = function() {
 
 /* */ 
 
-var menu = new MenuList(document.getElementById("menubutton"));
+var menu = new MenuList(document_getElementById("menubutton"));
 
 menu.reset = function() {
 	this.clear();
@@ -779,7 +877,7 @@ var toggle_joinparts = function(ev) {
 
 var updateTitle = function() {
 	var prefix = "";
-	var unrTabs = document.getElementsByClassName("unread");
+	var unrTabs = document_getElementsByClassName("unread");
 	if (unrTabs.length === 1 && unrTabs[0].getAttribute('data-tab') == "tab-main") {
 		prefix = "[" + mainchat_unread_count + " NEW] "
 	} else if (unrTabs.length > 0) {
@@ -885,7 +983,7 @@ var scrollback_move = function(delta) {
 		}
 	}
 	
-	(<HTMLInputElement>document.getElementById("chatbox")).value = chat_scrollback[chat_scrollback_index];
+	(<HTMLInputElement>document_getElementById("chatbox")).value = chat_scrollback[chat_scrollback_index];
 };
 
 /* */
@@ -906,7 +1004,7 @@ var persistence_get = function(key, fallback) {
 
 var transition = function(new_state) {
 	hub_state = new_state;
-	var $chatbox = (<HTMLInputElement>document.getElementById("chatbox"));
+	var $chatbox = (<HTMLInputElement>document_getElementById("chatbox"));
 	
 	switch(new_state) {
 		case STATE_DISCONNECTED: {
@@ -939,8 +1037,8 @@ var tab_is_visible = function(tabref) {
 }
 
 var tab_mark_unread = function(tabref) {
-	if (document.getElementById("tabitem-"+tabref).className.indexOf('unread') === -1) {
-		document.getElementById("tabitem-"+tabref).className += " unread";
+	if (document_getElementById("tabitem-"+tabref).className.indexOf('unread') === -1) {
+		document_getElementById("tabitem-"+tabref).className += " unread";
 		updateTitle();
 	}
 }
@@ -957,21 +1055,21 @@ var contented_load = function() {
 	
 	var onceSDKLoaded = function() {
 		contented.init("#inner-tab-main", function(items) {
-			var val = (<HTMLInputElement> document.getElementById("chatbox")).value;
+			var val = (<HTMLInputElement> document_getElementById("chatbox")).value;
 			for (var i = 0; i < items.length; ++i) {
 				if (val.length > 0) {
 					val += " ";
 				}
 				val += contented.getPreviewURL(items[i]);
 			}
-			(<HTMLInputElement> document.getElementById("chatbox")).value = val;
+			(<HTMLInputElement> document_getElementById("chatbox")).value = val;
 		});
 	};
 	
 	if (contented_loaded_sdk) {
 		onceSDKLoaded();
 	} else {
-		var scriptElement = document.createElement('script');
+		var scriptElement = document_createElement('script');
 		scriptElement.onload = function() {
 			contented_loaded_sdk = true;
 			onceSDKLoaded();
@@ -992,13 +1090,13 @@ window.onload = function() {
 	
 	// HTML event handlers
 	
-	document.getElementById("form-none").onsubmit = function(ev) {
+	document_getElementById("form-none").onsubmit = function(ev) {
 		submit();
 		
 		return noprop(ev); // don't submit form
 	};
 	
-	document.getElementById("chatbox").onkeydown = function(ev) {
+	document_getElementById("chatbox").onkeydown = function(ev) {
 		if (ev.keyCode === 9 /* Tab */) {
 			tabcompletion_start( ev.shiftKey ? -1 : 1 );
 			return noprop(ev);
@@ -1026,7 +1124,7 @@ window.onload = function() {
 		usermenu.hide();
 	};
 	
-	document.getElementById("menubutton").onclick = function(ev) {
+	document_getElementById("menubutton").onclick = function(ev) {
 		menu.toggle();
 		return noprop(ev);
 	};
@@ -1084,7 +1182,7 @@ window.onload = function() {
 		if (pre_login.indexOf(":") !== -1) {
 			pre_login = pre_login.substr(0, pre_login.indexOf(":")) + ":" + SENTINEL_PASSWORD;
 		}
-		(<HTMLInputElement>document.getElementById("chatbox")).value = pre_login;
+		(<HTMLInputElement>document_getElementById("chatbox")).value = pre_login;
 		
 		if (have_cleared_once) {
 			// re-log-in automatically