2012-05-21 04:12:37 -07:00
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<!-- This Source Code Form is subject to the terms of the Mozilla Public
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- License, v. 2.0. If a copy of the MPL was not distributed with this
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- file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
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2007-03-22 10:30:00 -07:00
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<html>
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<script>
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var pages = [
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"bugzilla.mozilla.org/",
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"lxr.mozilla.org/",
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"vanilla-page/"
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];
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var pages_i18n = [];
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var NUM_PAGES;
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var NUM_CYCLES;
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function parseParams() {
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var s = document.location.search.substring(1);
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var params = s.split('&');
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for (var i = 0; i < params.length; ++i) {
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var fields = params[i].split('=');
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switch (fields[0]) {
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case 'cycles':
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NUM_CYCLES = (fields[1] - 0);
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break;
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case 'pages':
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NUM_PAGES = (fields[1] - 0);
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break;
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case 'i18n':
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if (fields[1] == '1') {
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pages = pages.concat(pages_i18n);
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}
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break;
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}
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}
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if (!NUM_PAGES)
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NUM_PAGES = pages.length;
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if (!NUM_CYCLES)
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NUM_CYCLES = 5;
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}
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parseParams();
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var timeVals = new Array(NUM_PAGES); // matrix of times
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for (var i = 0; i < timeVals.length; ++i) {
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timeVals[i] = new Array;
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}
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var tstart;
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var index = 0;
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var cycle = 0;
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// returns an object with the following properties:
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// min : min value of array elements
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// max : max value of array elements
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// mean : mean value of array elements
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// vari : variance computation
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// stdd : standard deviation, sqrt(vari)
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// indexOfMax : index of max element (the element that is
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// removed from the mean computation)
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function getArrayStats(ary) {
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var r = {};
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r.min = ary[0];
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r.max = ary[0];
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r.indexOfMax = 0;
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var sum = 0;
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for (var i = 0; i < ary.length; ++i) {
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if (ary[i] < r.min) {
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r.min = ary[i];
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} else if (ary[i] > r.max) {
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r.max = ary[i];
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r.indexOfMax = i;
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}
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sum = sum + ary[i];
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}
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// median
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sorted_ary = ary.concat();
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sorted_ary.sort();
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// remove longest run
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sorted_ary.pop();
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if (sorted_ary.length%2) {
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r.median = sorted_ary[(sorted_ary.length-1)/2];
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}else{
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var n = Math.floor(sorted_ary.length / 2);
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r.median = (sorted_ary[n] + sorted_ary[n + 1]) / 2;
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}
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// ignore max value when computing mean and stddev
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r.mean = (sum - r.max) / (ary.length - 1);
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r.vari = 0;
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for (var i = 0; i < ary.length; ++i) {
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if (i == r.indexOfMax)
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continue;
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var d = r.mean - ary[i];
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r.vari = r.vari + d * d;
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}
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r.vari = r.vari / (ary.length - 1);
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r.stdd = Math.sqrt(r.vari);
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return r;
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}
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function appendTableCol(tr, text) {
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var doc = tr.ownerDocument;
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var td = doc.createElement("TD");
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td.appendChild(doc.createTextNode(text));
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tr.appendChild(td);
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return td;
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}
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function dumpReport() {
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var all = new Array();
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var counter = 0;
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for (var i = 0; i < timeVals.length; ++i) {
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for (var j = 0; j < timeVals[i].length; ++j) {
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all[counter] = timeVals[i][j];
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++counter;
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}
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}
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// avg and avg median are cumulative for all the pages
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var avgs = new Array();
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var medians = new Array();
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for (var i = 0; i < timeVals.length; ++i) {
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avgs[i] = getArrayStats(timeVals[i]).mean;
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medians[i] = getArrayStats(timeVals[i]).median;
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}
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var avg = getArrayStats(avgs).mean;
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var avgmed = getArrayStats(medians).mean;
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var r = getArrayStats(all);
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dump(
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"(tinderbox dropping follows)\n"+
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"_x_x_mozilla_page_load,"+avgmed+","+r.max+","+r.min+"\n"+
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"_x_x_mozilla_page_load_details,avgmedian|"+avgmed+"|average|"+avg.toFixed(2)+"|minimum|"+r.min+"|maximum|"+r.max+"|stddev|"+r.stdd.toFixed(2)+":"
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);
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for (var i = 0; i < timeVals.length; ++i) {
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r = getArrayStats(timeVals[i]);
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dump(
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'|'+
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i+';'+
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pages[i]+';'+
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r.median+';'+
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r.mean+';'+
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r.min+';'+
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r.max
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);
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for (var j = 0; j < timeVals[i].length; ++j) {
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dump(
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';'+timeVals[i][j]
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);
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}
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}
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}
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function showReport() {
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var doc = frames["content"].document;
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var tbody = doc.getElementById("tbody");
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for (var i = 0; i < timeVals.length; ++i) {
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var tr = doc.createElement("TR");
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appendTableCol(tr, pages[i]);
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var r = getArrayStats(timeVals[i]);
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appendTableCol(tr, r.min.toFixed(2));
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appendTableCol(tr, r.max.toFixed(2));
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appendTableCol(tr, r.mean.toFixed(2));
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appendTableCol(tr, r.stdd.toFixed(2));
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appendTableCol(tr, r.median.toFixed(2));
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for (var j = 0; j < timeVals[i].length; ++j) {
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var tv = timeVals[i][j];
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var td = appendTableCol(tr, tv);
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if (j == r.indexOfMax)
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td.setAttribute("class", "discarded");
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}
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tbody.appendChild(tr);
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}
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}
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function loadPage(i) {
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tstart = new Date();
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frames["content"].document.location = "base/" + pages[i] + "index.html";
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}
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function frameLoad() {
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if (cycle == NUM_CYCLES) {
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showReport();
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dumpReport();
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window.close();
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return;
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}
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var tend = new Date();
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var href = frames["content"].document.location.href;
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if (href == "about:blank")
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return;
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var tdelta = tend - tstart;
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timeVals[index].push(tdelta);
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var fields = href.split('/');
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var text = (cycle + 1) + ', ' + (index + 1) + ', ' + fields[fields.length - 2] + ", " + tdelta;
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var doc = frames["header"].document;
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var body = doc.body;
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while (body.firstChild)
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body.removeChild(body.firstChild);
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body.appendChild(doc.createTextNode(text));
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if (++index == NUM_PAGES) {
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index = 0;
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if (++cycle == NUM_CYCLES) {
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// display summary
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frames["content"].document.location = "report.html";
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return;
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}
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}
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window.setTimeout("loadPage(" + index + ")", 500);
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}
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function init() {
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window.resizeTo(800, 800);
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window.setTimeout("loadPage(" + index + ")", 500);
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}
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</script>
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<frameset rows="40,*" onload="init()">
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<frame name="header" src="header.html">
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<frame name="content" src="" onload="frameLoad()">
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</frameset>
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</html>
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