Shoutbox

Whenever I make a child window, like these:

js code:

---

MsgPlus.CreateChildWnd("WndBrowser", "Windows.xml", "WndSearch", "100", "100", true);
MsgPlus.CreateChildWnd("WndBrowser", "Windows.xml", "WndSearch", 100, 100, true);
MsgPlus.CreateChildWnd("WndBrowser", "Windows.xml", "WndSearch", "100", "100");
MsgPlus.CreateChildWnd("WndBrowser", "Windows.xml", "WndSearch", 100, 100);

---

I get an error in the Script Debugger, saying "type mismatch".  How come?