Don't see load Iframe button in new sfdc org. about ip-ranges HOT 5 CLOSED

var startingPoint = 0;
var IP_MAX = 255;

function loadIframes() {
    var a = startingPoint;
    var docHTML = "<table class=\"list\" cellspacing=\"0\" border=\"0\" cellpadding=\"4\">";
    docHTML += "<tr class=\"headerRow\">";
    docHTML += "<th>IP Start</th>";
    docHTML += "<th>IP End</th>";
    docHTML += "<th>Status</th>";   
    docHTML += "<th>(iframe loads here)</th>";
    docHTML += "</tr>";
    while (a<=IP_MAX) {
        docHTML += "<tr>";

        docHTML += "<td>"+a+".0.0.0</td>";
        docHTML += "<td>"+(a+1)+".255.255.255</td>";
        docHTML += "<td id=\"iframe"+a+"_Updated\">Loading...</td>";
        docHTML += "<td><iframe onload=\"parent.document.getElementById(this.name+'_Updated').innerHTML = 'iframe Loaded.';\" id=\"iframe"+a+"\" name=\"iframe"+a+"\" src=\"/05G/e?retURL=%2F05G&IpStartAddress="+a+".0.0.0&IpEndAddress="+(a+1)+".255.255.255&save=1\" width=\"0\" height=\"0\"  frameborder=\"0\"></iframe></td>";
        docHTML += "</tr>";
        a = a+2;
    }
    docHTML += "</table>";
    document.getElementById("output").innerHTML = docHTML;
}

function saveIPs() {
    saveIP(startingPoint);
}
function saveIP(ip) {
        var frame = document.getElementById("iframe"+ip);
        document.getElementById('iframe'+ip+'_Updated').innerHTML = "Saving IP Range...";
        var insideFrame = frame.contentWindow;
        var confirmationKeyElement = insideFrame.document.getElementById("_CONFIRMATIONTOKEN");
        if (confirmationKeyElement != null) {
            frame.onload="";
            var confirmationKey = confirmationKeyElement.value;
            insideFrame.document.location.href = insideFrame.document.location.href+"&_CONFIRMATIONTOKEN="+confirmationKey;
            document.getElementById("iframe"+ip+"_Updated").innerHTML = 'Completed.';
        } else {
            document.getElementById("iframe"+ip+"_Updated").innerHTML = 'Failed.';
        }

        if (ip <= IP_MAX-2) {
            setTimeout("saveIP("+(ip+2)+")", 1000);
        }
}
var x = document.getElementsByClassName("pbButton"); 
x[x.length - 1].innerHTML = '<input type="button" class="btn" value="Load iFrames" onclick="loadIframes();" /><input type="button" class="btn" value="Save IPs" onclick="saveIPs();" />';