function chekDate(obj){ var r=obj.value; var arrValue=r.match(/^(\d{1,4})(-)(\d{1,2})\2(\d{1,2})$/); var d=new Date(arrValue[1],arrValue[3]-1,arrValue[4]); if(!(d.getFullYear()==arrValue[1]&&(d.getMonth()+1)==arrValue[3]&&d.getDate()==arrValue[4])){ obj.value=""; } }<input name=tryValue maxlength=10 size=15 onblur=chekDate(this);>
if(!t.value.match(/^\d{4}([-/])\d{2}([-/])\d{2}([-/])$/))
alert("不合法");
http://jkisjk.vip.sina.com/html/AttachEventWithHtc.htm自动加上验证事件及日期按钮(js方式)
http://jkisjk.vip.sina.com/html/AttachEventWithJs.htm
var r=obj.value;
var arrValue=r.match(/^(\d{1,4})(-)(\d{1,2})\2(\d{1,2})$/);
var d=new Date(arrValue[1],arrValue[3]-1,arrValue[4]);
if(!(d.getFullYear()==arrValue[1]&&(d.getMonth()+1)==arrValue[3]&&d.getDate()==arrValue[4])){
obj.value="";
}
}<input name=tryValue maxlength=10 size=15 onblur=chekDate(this);>