页面历史

function main(spreadsheetReport) {
    //添加判断
    var pagePanelTable = spreadsheetReport.elem_pagePanelTd && spreadsheetReport.elem_pagePanelTd.firstChild && spreadsheetReport.elem_pagePanelTd.firstChild.firstChild;
    if (pagePanelTable) {
        var mainTable = spreadsheetReport.elemSheetFrame.contentWindow.document.getElementById("mainTable");
        var diff = Math.max(0, mainTable.offsetWidth - pagePanelTable.offsetWidth);
        pagePanelTable.parentNode.parentNode.style.paddingLeft = diff diff +  "px";
;    } 
}