Send mail in zimlet ext

[lix830917]

I want to send a mail from my zimlet,If I want to send a soap request in my javascript code,What should I do for this?The code below works?
function send_request(){
var url="servername\service\soap\SendMsgRequest";
var xml="<soap:Envelope xmlns:soap="http://www.w3.org/2003/05/soap-envelope">
<soap:Header>
<context xmlns="urn:zimbra">
<userAgent name="ZimbraWebClient - FF2.0 (Win)" version="4.5.4_GA_763.FC4"/><sessionId id="111" />
<change token="59553" type="new"/>
<authToken>(REMOVED)</authToken>
<format type="js"/></context>
</soap:Header>
<soap:Body>
<SendMsgRequest xmlns="urn:zimbraMail" suid="1177704687970"> <m idnt="2199a0c6-568b-11da-92a1-efa4f3028220"><e t="t" a="josh@hisdomain.com"/>
<e t="f" a="josh@hisdomain.com" p="Joshua R. Prismon"/>
<su>This is the message title</su>
<mp ct="multipart/alternative">
<mp ct="text/plain">
<content>This is the message content </content>
</mp>
<mp ct="text/html"><content>&lt;html&gt;&lt;head&gt;&lt;style type='text/css'&gt;body
{ font-family: 'Arial'; font-size: 12pt; color: #000000}&lt;/style&gt;&lt;/head&gt;&lt;body&gt;This
is the message content&lt;br&gt;&lt;/body&gt;&lt;/html&gt;</content></mp></mp></m></SendMsgRequest>
</soap:Body></soap:Envelope>";

if(window.XMLHttpRequest){
http_request=new XMLHttpRequest();
}
else if(window.ActiveXObject){
try{
http_request=new ActiveXObject("Msxml2.XMLHTTP");
}catch(e){
try{
http_request=new ActiveXObject("Microsoft.XMLHTTP");
}catch(e){}
}

}
http_request.onreadystatechange=processRequest;
http_request.open("POST",url,false);
//http_request.setRequestHeader("Content-Type","text/xml");
http_request.send(xml);
}

I don't know weather this method works,Are there any exist functions better than above?
if without using soap,Are there other class or method or library for sending a mail in zimlet's javascript code?
Thanks for your attention,I'll be so appreciate if you can show any detail about it.

[Ericx]

This makes your zimlet very Internet Explorer specific. This code will not work in firefox. The main idea behind the Zimbra framework is it is browser independent. If you can get the code correct, it will generate the correct information for the browser the users is using. The problem is, the zimbra framework is a bit complicated.