3
if(date.toString > hi.value)
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML> <head> <script> function mm(){ var hi = document.getElementById('txt'); var Tempdate = new Date(); var date1,date2,strDate; date1 = Tempdate.getMonth()+1+""; date1 = (date1.length<2) ? ("0"+date1) : (date1); date2 = Tempdate.getDate() + ""; date2 = (date2.length<2) ? ("0"+date2) : (date2); strDate = Tempdate.getYear()+date1+date2; (strDate < hi.value) && alert('error') } </script> </head> <BODY> <input id="button" type="button" value="增加" onclick="mm()"> <input id="txt" type="text" value="20090909" > </BODY> </HTML>