限制日期控件 最大可选值为当前日期

var date = new Date();
var seperator1 = "-";
var year = date.getFullYear();
var month = date.getMonth() + 1;
var strDate = date.getDate();
if (month >= 1 && month <= 9) {
month = "0" + month;
}
if (strDate >= 0 && strDate <= 9) {
strDate = "0" + strDate;
}
var currentdate = year + seperator1 + month + seperator1 + strDate;
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{
label : "转账时间 <font color='red'>*</font>：",
element:[{
type : 'date',
id : 'transferTime',
name : "parameter['transferTime']",
maxDate:currentdate,
value : ""
}]
},