动态创建form并提交

  <a href="javascript:formSubmit()" onclick="formSubmit('入库查询')" target="mainFrame" onFocus="this.blur()" id="input_select">入库查询</a>

   function formSubmit(elementvalue) {
        GetLeftParam();
        var QueryForm = document.createElement("form");
        document.body.appendChild(QueryForm);
        QueryForm.method = 'post';
        if(elementvalue == '入库查询') {

            QueryForm.action = './input_select';
        }
        QueryForm.target = 'mainFrame';

        var newElement1 = document.createElement("input");
        newElement1.setAttribute("value",comname);
        newElement1.setAttribute("type","hidden");
        newElement1.setAttribute("name","comname");
        var newElement2 = document.createElement("input");
        newElement2.setAttribute("value",proname);
        newElement2.setAttribute("type","hidden");
        newElement2.setAttribute("name","proname");
        var newElement3 = document.createElement("input");
        newElement3.setAttribute("value",goodsname);
        newElement3.setAttribute("type","hidden");
        newElement3.setAttribute("name","goodsname");
        var newElement4 = document.createElement("input");
        newElement4.setAttribute("value",specname);
        newElement4.setAttribute("type","hidden");
        newElement4.setAttribute("name","specname");
        var newElement5 = document.createElement("input");
        newElement5.setAttribute("value",gradename);
        newElement5.setAttribute("type","hidden");
        newElement5.setAttribute("name","gradename");
        var newElement6 = document.createElement("input");
        newElement6.setAttribute("value",manname);
        newElement6.setAttribute("type","hidden");
        newElement6.setAttribute("name","manname");
        var newElement7 = document.createElement("input");
        newElement7.setAttribute("value",pakename);
        newElement7.setAttribute("type","hidden");
        newElement7.setAttribute("name","pakename");
        QueryForm.appendChild(newElement1);
        QueryForm.appendChild(newElement2);
        QueryForm.appendChild(newElement3);
        QueryForm.appendChild(newElement4);
        QueryForm.appendChild(newElement5);
        QueryForm.appendChild(newElement6);
        QueryForm.appendChild(newElement7);
        QueryForm.submit();
    }