Urgent--Problem in Date validations in Javascript.

Question

Hi ,
I am facing problem in date validation in javascript.The requirement is my PO delivery date should be greater than my Sysdate.For that I wrote Javascript programme as below-
function sysValidate(item){
                    var itemValue=item;
// alert(itemValue);
/* if((itemValue == '')||(itemValue == null))
return false;
                    var today = new Date();
                    var sysDay = today.getDate();
                    var sysMonth = today.getMonth()+1;
                    var sysYear = today.getFullYear();
                    var fieldArray = itemValue.split("/");
                    var itemDay = parseInt(fieldArray[0]);
                    var itemMonth = parseInt(fieldArray[1]);
                    var itemYear = parseInt(fieldArray[2]);
if(itemYear > sysYear)
return false;
                    else{
                         if(itemYear < sysYear)
                              return true;
                         else{
                              if(itemMonth > sysMonth)
                                   return false;
                              else{
                                   if(itemMonth < sysMonth)
                                        return true;
                                   else{
if(itemDay >=sysDay)
return false;
                                        else
return true;
Now inspit of my PO delivery date greater than sysdate ,while saving record I am getting Alert as Save denied as delivery date prior to sysdate
The code for alert is as follows-
if(sysValidate(exdate))
alert("Save denied as delivery date prior to sysdate");
bool=false;
return bool;
Plz,help.As this problem is occuring on Production Server due to this my suppliers can't save record.
Vaish...

Answer 1

hi Vaish,
here is the code i have modified
<script>
function sysValidate(item){
var itemValue=item;
var fieldArray = itemValue.split("/");
var today = new Date();
var sysdate=new Date(today.getFullYear(),today.getMonth(),today.getDate(),0,0,0);
var inputdate=new Date(parseInt(fieldArray[2]),parseInt(fieldArray[0])-1,parseInt(fieldArray[1]),0,0,0);
alert("sysdate "+sysdate);
alert("inputdate "+inputdate);
days=Math.round((sysdate.getTime()-inputdate.getTime())/1000/60.0/60.0/24.0);
if(days<=0)
     return true;
else
     return false;
</script>
call the validate method form here :
<script>
if(sysValidate("07/24/2005"))
alert("Save denied as delivery date prior to sysdate");
else{
alert("Saved successfully")
}