//生成变化参数
function getVariableParameter() {
	var theday = new Date();
	var theyear = theday.getFullYear();
	var themonth = theday.getMonth()+1;
	var thedays = theday.getDate();
	var thehours = theday.getHours();
	var theminutes = theday.getMinutes();
	var theseconds = theday.getSeconds();
	var customRandom = Math.random();
	return (theyear+"-"+themonth+"-"+thedays+"-"+thehours+"-"+theminutes+"-"+theseconds+"-"+customRandom);
}