Baidu Musicbox 用到的ajax代码

nse,param){
    var isXML=false;//false:html or true:xml
    var isCache=false;//false:no-cache or true:cache
    var method="GET";//GET or POST
    var attach="";
    if(param){
        re = / /g; 
        param=param.replace(re, "");
        var tmp=param.split(",");
        for(var i=0;i<tmp.length;i++){
            var pa=tmp[i].substr(0,3);
            var ct=tmp[i].split("=");
            switch (pa){
                case "isX":
                if(ct=="true"){
                    isXML= true; 
                }else{
                    isXML= false; 
                }
                break;
                case "isC":
                if(ct=="true"){
                    isCache= true; 
                }else{
                    isCache= false; 
                }
                break;
                case "met":
                method=ct;
                break;