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JavaScript output the wrong date

Posted on 2011-02-18
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Last Modified: 2012-05-11
Hi all

I have this script below..
when I run the script:  alert(date1);
is outputing the wrong date.. Plus 1 month in the future? how is this possible?

function CompareDates()
{
    var strVon                   = document.getElementById("Fromdate").value;
    var strBis                   = document.getElementById("Todate").value;      
      var currentDate            = new Date();  
      var dt1                    = parseInt(strVon.substring(0,2),10);
    var mon1                   = parseInt(strVon.substring(3,5),10);
    var yr1                    = parseInt(strVon.substring(6,10),10);       
    var dt2                    = parseInt(strBis.substring(0,2),10);
    var mon2                   = parseInt(strBis.substring(3,5),10);
    var yr2                    = parseInt(strBis.substring(6,10),10);
    var date1                   = new Date(yr1, mon1, dt1);
    var date2                   = new Date(yr2, mon2, dt2);

   
      alert(date1);
      alert(mon1);
      alert(currentDate);
      alert(strVon);
      alert(date1);
      
      if(currentDate > date1)
    {
        alert("To date cannot be greater than from date");
        return false;
    }
    else
    {
        alert("Submitting ...");
        document.form1.submit();
    }
}
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Question by:ZURINET
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5 Comments
 
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by:
leakim971 earned 500 total points
ID: 34926306
month start with zero :
january  = 0
december = 11
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Expert Comment

by:leakim971
ID: 34926326
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Expert Comment

by:Badotz
ID: 34926334
The month is zero-based:

var curDate = new Date();
var mon1 = curDate.getMonth(); // 0 - Jan, 1 = Feb, 2 = Mar, etc.

Visit http://www.w3schools.com/jsref/jsref_obj_date.asp for a reference to the Date object.
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Expert Comment

by:HonorGod
ID: 34926339
leakim971 is, of course, correct.

Here is some additional information for you: http://www.w3schools.com/jsref/jsref_obj_date.asp
and this article may be helpful: http://www.experts-exchange.com/A_484.html
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Expert Comment

by:Badotz
ID: 34926345
sheesh - great minds think, eh? Mine is just too slow this morning ;-)
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