diff --git a/lib/xmpp-client/client.js b/lib/xmpp-client/client.js
index 89921ae..df71396 100644
--- a/lib/xmpp-client/client.js
+++ b/lib/xmpp-client/client.js
@@ -160,7 +160,7 @@ Client.prototype.message = function(to, message) {
 
 Client.prototype.askForRoster = function(callback) {
 	var jabber = this;
-	this.iq(new xmpp.Element('query', {xmlns: 'jabber:iq:roster'}), function(iq) {
+	this.iq(null, new xmpp.Element('query', {xmlns: 'jabber:iq:roster'}), function(iq) {
 		iq.getChild('query', 'jabber:iq:roster').getChildren('item').forEach(function(child) {
 			jabber.roster[child.attrs.jid] = {
 				name: child.attrs.jid,
@@ -176,10 +176,24 @@ Client.prototype.askForRoster = function(callback) {
 	});
 };
 
-Client.prototype.iq = function(iq, callback) {
+Client.prototype.iq = function(to, query, callback) {
 	var n = this._iq++;
 	this._iqCallback[n] = callback;
-	this.xmpp.send(new xmpp.Element('iq', {type:"get", id: n}).cnode(iq).tree());
+	var attrs = {
+		type:"get",
+		id: n
+	};
+	if(to != null) {
+		attrs.to = to;
+	};
+	this.xmpp.send(new xmpp.Element('iq', attrs).cnode(query).tree());
+};
+
+Client.prototype.iqSet = function(query) {
+	this.xmpp.send(new xmpp.Element('iq', {
+		type:"set",
+		id: this._iq++
+	}).cnode(query).tree());
 };
 
 Client.prototype.resultIq = function(iqGet, result) {