JS to determine the difference of two dates or to determine the size of two dates

2. Determine the difference between two dates
4. function DateDiff (sdate1,sdate2) {
6. The format of sDate1 and SDate2 is xxxx-xx-xx
8. var adate,odate1,odate2,idays;
12. Convert to XX-XX-XXXX format
14. Adate = Sdate1.split ("-");
16. oDate1 = new Date (adate[1] + "," + adate[2] + "," + adate[0]);
20. Adate = Sdate2.split ("-");
22. ODate2 = new Date (adate[1] + "," + adate[2] + "," + adate[0]);
26. Alert (sDate1 + "=====" + sDate2 + "= =" + oDate1 + "= = =" + ODate2);
28. Alert ("--------" + (Odate1-odate2));
32. Converts the difference in milliseconds to days
34. Idays = parseint (Math.Abs (odate1-odate2)/1000/60/60/24);
38. return idays;
40. } 
42. Determine the size of two dates
44. function Checkdate () {
46. To get the date value and convert it into a date format, replace (/\-/g, "/") is the date-to -date format based on the validation expression, which
50. It's a good judgment to judge.
52. var S1 = document.getelementbyidx_x ("Txtstart"). Value;
54. var s2 = document.getelementbyidx_x ("Txtend"). Value;
56. alert (S1);
58. alert (S2);
62. var sdate = new Date (S1.replace (/\-/g, '/'));
64. var eDate = new Date (S2.replace (/\-/g, '/'));
68. Alert (sdate + "=============" + eDate);
70. if (Sdate > EDate)
72. {
74. Alert ("The end date cannot be less than the start date ");
76. return false;
78. }
80. return true;
82. } 

JS to determine the difference of two dates or to determine the size of two dates