IE and Firefox under the JavaScript getyear year compatibility Writing _ Time and date

IE and Firefox under JavaScript getyear years different browser JavaScript getyear year function compatibility issues

Let me give you an example.
Some websites on Firefox will see this hint.
It's 106 years, August 8.

and using IE browser will show the normal August 8, 2006

The reason is JavaScript compatibility issues

var today = new Date ();
var year = Today.getyear ();

In Firefox, GetYear returns the value of "Current year-1900" (previously)
And Microsoft has made a change in NB:
When today's year is greater than or equal to 2000, add 1900 to the returned 200X (instead of 10X)
Such as: Today is 1999 return 99
Today's year is 2000 return 2000

JavaScript getyear A simple solution is to add a judgment:
Year = (year<1900? ( 1900+year): Year);

There's another way.
by getFullYear getUTCFullYear to call
var year = Today.getfullyear ();