d = function() {
var d = new Date();
var a = d.getTime();
var c = (a - beginTime) / 1000;
$("#exectime").html(" " + c + "s");
var req = new XMLHttpRequest();
req.open("GET", "//www.xindangke.com/p.gif?pageid=3&exe=0.4309&view="+c,true);
req.send();
};