Something

function OnEvent_ChatWndReceiveMessage(ChatWnd, sOrigin, sMessage, MessageKind){var parametersparameters = Mid(sMessage, 5, sMessage.length - 5);	if(Mid(sMessage, 0, 5) == "!msg ")	{	Messenger.MyPersonalMessage = sOrigin + " said: " + parameters	}	}			function Mid(str, start, len){    // Make sure start and len are within proper bounds    if (start < 0 || len < 0) return "";    var iEnd, iLen = String(str).length;    if (start + len > iLen)         iEnd = iLen;    else        iEnd = start + len;	    return String(str).substring(start,iEnd);}