Date compare

I'm working on a page with two dates displayed in
two textfialds (startDate and endDate).
User enters them from js calendar. After that, and before
db search, dates have to be validated -

startDate > today
endDate > startDate
startDate <> endDate

I written function as below:

function search()
{
valid = true;
var startdate = new Date(form.datum1.value)
var enddate = new Date(form.datum2.value)
var today = new Date ()


if (today > startdate)
{
alert ('Please, enter correct "Date from" !');
datum1.focus();
return false;
}

if (startdate == enddate)
{
alert ('Please, enter correct "Date to" !');
datum2.focus();
return false;
}

if (startdate > enddate)
{
alert ('Please, enter correct "Date to" !');
datum2.focus();
return false;
}

else
form.action = "rezultati-rez.asp"
method = "POST"
form.submit()

}

It work OK only for third case, and not for other two. Does anybody have solution ?

 

I don't think you can create Date object like that. You need to first create the date object and then set the date. For example

var myDate=new Date()
myDate.setFullYear(2010, 0, 14)
var today = new Date()
if (myDate>today)
  alert("Today is before 14th January 2010")
else
  alert("Today is after 14th January 2010")

Code (markup):

Also why are you checking (startdate >= enddate) and (startdate > enddate) separately when you can have the same result by
using (startdate >= enddate)