XML处理

[zg_ligang]

var strurl = "/webs/btnSettingEx";
var xmlText = "<Message><flag>"+paramflag+"</flag>";
xmlText = xmlText + "<paramchannel>"+ nwindow +"</paramchannel>";
xmlText = xmlText + "<paramcmd>"+ paramcmd +"</paramcmd>";
xmlText = xmlText + "<paramctrl>"+ paramctrl +"</paramctrl>";
xmlText = xmlText + "<paramtitle>"+ paramtitle +"</paramtitle>";
xmlText = xmlText + "</Message>";
CreateAjax();
if(!oSend){
window.status = CREATEXMLHTTPERROR; return false;
}
strurl = strurl + "?flag=" + paramflag + "¶mchannel="+ nwindow +"¶mcmd="+ paramcmd +"¶mctrl="+ paramctrl +"¶mtitle="+ paramtitle +"";
oSend.onreadystatechange = function (){alertLensSetting(paramcmd);}
oSend.open("POST",strurl,true);
oSend.setRequestHeader("CONTENT-TYPE", "text/xml");
oSend.send(xmlText);
有没有大神能帮我分析分析这段代码的意思，是怎么个流程。。。谢谢