Awesome JavaScript date Conversion Function

2.  /* Parses string type into date type. 
4. Parsedate ('1970-1-1 ') return new date (2006, 1) 
6. Parsedate ('2006-1-1 ') return new date (, 1) 
8. Parsedate ('1970-1-1 15:14:16 ') return new date (2006) 
10. Parsedate ('2006-1-1 15:14:16 ') return new date ); 
12. Parsedate ('1970-1-1 15:14:16. 123') return new date (2006, 254, 254) 
14. Parsedate ('2006-1-1 15:14:16. 100') return new date (254, 254) 
16. Parsedate ('incorrect format') retrun null 
18. */
20. FunctionParsedate (STR ){
22. If(TypeofSTR ='String'){
24. VaRResults = Str. Match (/^ * (\ D {4})-(\ D {1, 2})-(\ D {1, 2}) * $ /);
26. If(Results & results. length> 3)
28. Return NewDate (parseint (results [1]), parseint (results [2])-1, parseint (results [3]);
30. Results = Str. match (/^ * (\ D {4})-(\ D {1, 2})-(\ D {1, 2}) + (\ D {1, 2 }) :( \ D {1, 2}) :( \ D {1, 2}) * $ /);
32. If(Results & results. length> 6)
34. Return NewDate (parseint (results [1]), parseint (results [2])-1, parseint (results [3]), parseint (results [4]), parseint (results [5]), parseint (results [6]);
36. Results = Str. match (/^ * (\ D {4})-(\ D {1, 2})-(\ D {1, 2}) + (\ D {1, 2 }) :( \ D {1, 2}) :( \ D {1, 2 })\. (\ D {1, 9}) * $ /);
38. If(Results & results. length> 7)
40. Return NewDate (parseint (results [1]), parseint (results [2])-1, parseint (results [3]), parseint (results [4]), parseint (results [5]), parseint (results [6]), parseint (results [7]);
42. }
44. Return Null;
46. }
50. /* 
52. Parses the date/string type into the string type. 
54. If the string type is input, it is first parsed as the date type 
56. Incorrect date. ''is returned'' 
58. If the time part is 0, only the date part is returned. 
60. */
62. FunctionFormatdate (v ){
64. If(TypeofV ='String') V = parsedate (v );
66. If(VInstanceofDate ){
68. VaRY = V. getfullyear ();
70. VaRM = V. getmonth () + 1;
72. VaRD = V. getdate ();
74. VaRH = V. gethours ();
76. VaRI = V. getminutes ();
78. VaRS = V. getseconds ();
80. VaRMS = V. getmilliseconds ();
82. If (MS> 0) return Y + '-' + M + '-' + D + '' + H + ': ' + I + ': ' + S + '. ' + MS;
84. If(H> 0 | I> 0 | S> 0)ReturnY +'-'+ M +'-'+ D +''+ H +':'+ I +':'+ S;
86. ReturnY +'-'+ M +'-'+ D;
88. }
90. Return '';
92. }

Http://lihui5028.iteye.com/blog/376095