JavaScript code to compare time size_time and date

For example: Date.parse( "2000-01-01" ) IE and Mozilla browsers: "NaN". Then the time we usually display on the Web page cannot be converted directly. Need to be processed.
Formats that can be directly converted "01/01/2000", "2000/01/01"

Copy code Code As follows:

//Define the regular expression, because jS can only replace one
//Convert to "2000/01/01"
var regS = new RegExp("- ","gi");
var date1=document.getElementById("begindate");
var date2=document.getElementById("enddate");
date1=date1.replace(regS,"/ ");

date2=date2.replace(regS,"/");
var bd =new Date(Date.parse(date1));
var ed =new Date(Date. parse(date2));

bd,ed are time objects and can be compared directly.