js window.open隐藏参数提交

var url = "page/public/exportExcel.jsp";
//create a form
var tempForm = document.createElement("form");
tempForm.id="tempForm1";
//set the way of sending request
tempForm.method="post";
//tempForm.accept-charset="UTF-8";
//the url is used for "window.open"��excute by action of form
tempForm.action=url;
//bind the parameter for "window.open" by attributes "target",such as window attributes
tempForm.target="_blank";
//set the url para by creation of hidden elements
var hideInput = document.createElement("input");
hideInput.type="hidden";
hideInput.name= "title";
hideInput.value= title;
var hideInput2 = document.createElement("input");
hideInput2.type = "hidden";
hideInput2.name = "fields";
hideInput2.value = fields;
var hideInput3 = document.createElement("input");
hideInput3.type = "hidden";
hideInput3.name = "filename";
hideInput3.value = outPutFileName;
var hideInput3_1 = document.createElement("input");
hideInput3_1.type = "hidden";
hideInput3_1.name = "filetype";
hideInput3_1.value = "xls";
var hideInput4 = document.createElement("input");
hideInput4.type = "hidden";
hideInput4.name = "footer";
hideInput4.value = footer;
var hideInput5 = document.createElement("input");
hideInput5.type = "hidden";
hideInput5.name = "headers";
hideInput5.value = JSON.stringify(headers); //if a crossTab,must send the content to server for downloading
if(this.reportTableType=="crossTable")
{
var hideTempInput1 = document.createElement("input");
hideTempInput1.type = "hidden";
hideTempInput1.name = "reportTableType";
hideTempInput1.value = "crossTable";
tempForm.appendChild(hideTempInput1); var hideTempInput2 = document.createElement("input");
hideTempInput2.type = "hidden";
hideTempInput2.name = "contents";
hideTempInput2.value =JSON.stringify(contents) ;
tempForm.appendChild(hideTempInput2);
}
//add the base input-searchCondition
for(var key in searchCondition){
if($.trim(searchCondition[key])!=""){
var hideTempInput = document.createElement("input");
hideTempInput.type = "hidden";
hideTempInput.name = key;
hideTempInput.value = searchCondition[key];
tempForm.appendChild(hideTempInput);
}
}
//add the elements into form
tempForm.appendChild(hideInput);
tempForm.appendChild(hideInput2);
tempForm.appendChild(hideInput3);
tempForm.appendChild(hideInput3_1);
tempForm.appendChild(hideInput4);
tempForm.appendChild(hideInput5); //add the form into the page body
document.body.appendChild(tempForm);
//submit manually
tempForm.submit();
//remove the temp form from the page body
document.body.removeChild(tempForm);