[HELP] Changing a <select> causes reference error (msg not defined)

SOLVED:&nbsp; The mystery was mundane, as always.&nbsp; I had an undefined msg in my change:attr event.&nbsp; I have no idea how it got there, or when, as it was section I hadn't messed with in a while, but who knows! Best API user NA. EDIT: My post title was supposed to be "changing a &lt;select&gt; causes a reference error" EDIT: Actually, changing anything on my char sheet is triggering this error.&nbsp; Can't find where it might be triggering in my chage:attr, event but I'm guessing its something like that. Basically, the only place I use the variable msg &nbsp;is in : on ("chat:message", function(msg) { }) I have a bunch of &lt;buttons type="roll"&gt;, in my char sheet that trigger scripts through "!example" chat messages.&nbsp; However, none of these buttons are associated with the attributes that change with this &lt;select&gt;.&nbsp; Why would this &lt;select&gt; or the associated &lt;input type="hidden&gt; seem to trigger something that leads to a chat:message event without a defined "msg"? &lt;input type="hidden" name="attr_protoApp0" class="sheet-soul-elem-switch"&gt;&lt;select style="font-weight:bold;width:80px" class="sheet-soul-elem-select1" name="attr_protoApp0"&gt; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &lt;option style="color:brown;font-weight:bold" selected = "selected" value="0"&gt;Solid&lt;/option&gt; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &lt;option style="color:blue;font-weight:bold" value="1"&gt;Flow&lt;/option&gt; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &lt;option style="color:pink;font-weight:bold" value="2"&gt;Life&lt;/option&gt; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &lt;option style="color:red;font-weight:bold" value="3"&gt;Radiant&lt;/option&gt; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &lt;option style="color:green;font-weight:bold" value="4"&gt;Scatter&lt;/option&gt; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &lt;option style="color:black;font-weight:bold" value="5"&gt;Void&lt;/option&gt; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &lt;/select&gt; .sheet-soul-elem-switch[value="0"] + .sheet-soul-elem-select1 { &nbsp; &nbsp; color: brown; } .sheet-soul-elem-switch[value="1"] + .sheet-soul-elem-select1 { &nbsp; &nbsp; color:blue; } .sheet-soul-elem-switch[value="2"]&nbsp; + .sheet-soul-elem-select1 { &nbsp; &nbsp; color: pink; } .sheet-soul-elem-switch[value="3"]&nbsp; + .sheet-soul-elem-select1 { &nbsp; &nbsp; color: red; } .sheet-soul-elem-switch[value="4"]&nbsp; + .sheet-soul-elem-select1 { &nbsp; &nbsp; color: green; } .sheet-soul-elem-switch[value="5"]&nbsp; + .sheet-soul-elem-select1 { &nbsp; &nbsp; color: black; } &nbsp; &nbsp;