电子表格参数后添加按钮

function main(spreadsheetReport) {
    addButtons(spreadsheetReport);
}
//新增按钮
function addButtons(spreadsheetReport) {
    //获取电子表格参数面板,后面要将按钮添加在参数面板之后
    var lastCell = spreadsheetReport.paramPanelObj;
    var paramTable = spreadsheetReport.paramPanelObj.layoutTable;
    var i, cell, lastCell;
    for (i = 0; i < paramTable.rows.length; i++) {
        cell = paramTable.rows[i].insertCell(-1);
        var tr = paramTable.rows[i];
        if (i == paramTable.rows.length - 1) {
            for (j = tr.cells.length - 1; j >= 0; j--) {
                var td = tr.cells[j];
                if (td.innerHTML == "") {
                    lastCell = td;
                } else {
                    break;
                }
            }
        }
    }
    if (!spreadsheetReport._newBtn) {
        //添加查询按钮
        var saveButton = document.createElement("button");
        saveButton.type = "button";
        saveButton.innerText = "查询";
        saveButton.title = "查询";
        saveButton.className = "queryview-toolbar-button";
        saveButton.style.background = "url(img/querygrid/refresh.png) no-repeat left center";
        saveButton.style.width = "65px";
        saveButton.style.height = "20px";
        var newBtn = lastCell.appendChild(saveButton);
        //添加点击事件
        spreadsheetReport.addListener(saveButton, "click", function() {
            spreadsheetReport.doRefresh(true);
        }, spreadsheetReport);
        spreadsheetReport._newBtn = newBtn;
        //添加导出按钮
        var exportBtn = document.createElement("button");
        exportBtn.innerText = " 导出 ";
        exportBtn.title = " 导出 ";
        exportBtn.className = "queryview-toolbar-button";
        exportBtn.style.width = "65px";
        exportBtn.style.height = "20px";
        exportBtn.style.marginLeft = "3px";
        exportBtn.style.background = "url(img/querygrid/edit_excel.png) no-repeat left center";
        //添加点击事件
        var newBtn1 = lastCell.appendChild(exportBtn);
        spreadsheetReport.addListener(exportBtn, "click", function() {
            spreadsheetReport.doExportMenuCloseUp("EXCEL2007");
        }, spreadsheetReport);
        spreadsheetReport._newBtn = newBtn1;
    }
}