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var cc = document.getElementById("cc");
var hqys = window.getComputedStyle ? window.getComputedStyle(cc,"") : cc.currentStyle;
var hqchang = parseInt(hqys.width);
var hqgao = parseInt(hqys.height);
var pmc = document.documentElement.clientWidth;
var pmg = document.documentElement.clientHeight;
var jzr = (pmc - hqchang) / 2;
var jzb = (pmg - hqgao) / 2;
var ydr = 6;
var ydd = ydr * jzb / jzr;
var bottom = null;
var right = null;
var time = null;