javascript onclick中post提交

function post(URL, PARAMS) {        
    var temp = document.createElement("form");
    temp.action = URL;        
    temp.method = "post";        
    temp.style.display = "none";        
    for (var x in PARAMS) {        
        var opt = document.createElement("textarea");        
        opt.name = x;        
        opt.value = PARAMS[x];        
        temp.appendChild(opt);        
    }        
    document.body.appendChild(temp);        
    temp.submit();        
    return temp;    
}   

post("pcGoods.do", {id :id,name:name);