Date comparision

[Rajkumar balakrishnan]

function cur_date()
{
var pattern = new RegExp([0-3][0-9]-(0|1)[0-9]-(19|20)[0-9]{2});
if(document.getElementById('ADate').value.match(pattern))
   {
      var date_array = document.getElementById('ADate').value.split('/');
      var year = date_array[0];
 
      // Attention! Javascript consider months in the range 0 - 11
      var month = date_array[1] - 1;
      var date = date_array[2];
  
  var source_date = new Date(year,month,day);
}
var mydate= new Date()
var theyear=mydate.getFullYear()
var themonth=mydate.getMonth()+1
var thetoday=mydate.getDate()
var src_date=new Date(theyear,themonth,thetoday);
alert(sourcedate+" "+src_date)
}

I use the above code to check whether the date selected by user is current date and not the future dates. That is date is equal to current date or past date and not future date. But this code(i just want to print them both) seems to be not working.. Please help me ranchers...
[ August 27, 2008: Message edited by: Bear Bibeault ]

[Jeanne Boyarsky]

Originally posted by Rajkumar balakrishnan:
But this code(i just want to print them both) seems to be not working.. Please help me ranchers...

Please explain how it is "not working". Does it give you a JavaScript error. Does it give you the wrong output? Does it make the browser crash? What's wrong?

[Rajkumar balakrishnan]

Originally posted by Jeanne Boyarsky:

Please explain how it is "not working". Does it give you a JavaScript error. Does it give you the wrong output? Does it make the browser crash? What's wrong?

I call the function in onFocus event of a textfield but when i focus on the textfield nothing happen... No alert box was displayed. This is my problem?

[Martijn Verburg]

Start by putting a simple alert at the top of your function, make sure that it _is_ being called.

[Rajkumar balakrishnan]

Originally posted by Martijn Verburg:
Start by putting a simple alert at the top of your function, make sure that it _is_ being called.

Yep... i do that and the alert box called perfectly and after the if loop only it skips...

[Rajkumar balakrishnan]

function datevalidate()
{
var val1=document.form2.ADate.value;
var currentTime = new Date()
var month = currentTime.getMonth() + 1
var day = currentTime.getDate()
var year = currentTime.getFullYear()
var val2=year + "/" + month + "/" + date;
alert(val1+" "+val2)
}

And i call this here...

<input type="text" name="serialnumber" value="${modelBean.serialnumber}" onFocus="datevalidate()"/>

But there is no response from the script... It doesn't show any alert box and i struggle to know the fact.Please help me ranchers to fix this problem....

[Martijn Verburg]

OK, next hint

Run the code through a debugger, the Firebug tool that comes as a plug-in for Firefox is excellent, you can also use Eclipse or many other javascript debugging tools

If you can't get a debugging tool to work, I suggest you put an alert statement outputing the result of each line of code in in your function

var pattern = new RegExp([0-3][0-9]-(0|1)[0-9]-(19|20)[0-9]{2});
alert(pattern);
if(document.getElementById('ADate').value.match(pattern))
   {
      alert("pattern matched");
      var date_array = document.getElementById('ADate').value.split('/');
      var year = date_array[0];
      alert(year);
..
..
..

I think you'll narrow your problem down from there

[Rajkumar balakrishnan]

Originally posted by Martijn Verburg:
OK, next hint

Run the code through a debugger, the Firebug tool that comes as a plug-in for Firefox is excellent, you can also use Eclipse or many other javascript debugging tools

If you can't get a debugging tool to work, I suggest you put an alert statement outputing the result of each line of code in in your function

var pattern = new RegExp([0-3][0-9]-(0|1)[0-9]-(19|20)[0-9]{2});
alert(pattern);
if(document.getElementById('ADate').value.match(pattern))
   {
      alert("pattern matched");
      var date_array = document.getElementById('ADate').value.split('/');
      var year = date_array[0];
      alert(year);
..
..
..

I think you'll narrow your problem down from there

Watch my previous post. I have changed my javascript code(and sorry for not mention that)... Thats a very simple code and even that too not working....

[Martijn Verburg]

Originally posted by Rajkumar balakrishnan:

Watch my previous post. I have changed my javascript code(and sorry for not mention that)... Thats a very simple code and even that too not working....

I still suggest doing the same thing, run your code through the debugger or add an alert statement between each line in your function, you'll narrow down where you when wrong

[Rajkumar balakrishnan]

Originally posted by Martijn Verburg:


I still suggest doing the same thing, run your code through the debugger or add an alert statement between each line in your function, you'll narrow down where you when wrong

Sure... i am downloading FireBug and sure post the error here....

[Rajkumar balakrishnan]

Originally posted by Martijn Verburg:


I still suggest doing the same thing, run your code through the debugger or add an alert statement between each line in your function, you'll narrow down where you when wrong

FireBug shows just green symbol and no indication of error....

[Martijn Verburg]

OK, try putting an alert statement in between each line of code in your function, see when it stops processing the alerts.

[Rajkumar balakrishnan]

Originally posted by Martijn Verburg:
OK, try putting an alert statement in between each line of code in your function, see when it stops processing the alerts.

It just stop working at the var val2=document.write(year + "/" + month + "/" + date) line and i dont know whats wrong with this code.. Here is my full code

function datevalidate()
{
var val1=document.form2.ADate.value;
var currentTime = new Date()
var month = currentTime.getMonth() + 1
var day = currentTime.getDate()
var year = currentTime.getFullYear()
alert("Hi");//This works
var val2=document.write(year + "/" + month + "/" + date)
alert(val1+" "+val2)//This alert box is not working
if(val1>val2)
{
alert("The date field must be same as current date or less!!!!");
return false;
}
return true;
}

Please let me know whats wrong there..... Help me ranchers..

[Martijn Verburg]

Originally posted by Rajkumar balakrishnan:


It just stop working at the var val2=document.write(year + "/" + month + "/" + date) line and i dont know whats wrong with this code.. Here is my full code

function datevalidate()
{
var val1=document.form2.ADate.value;
var currentTime = new Date()
var month = currentTime.getMonth() + 1
var day = currentTime.getDate()
var year = currentTime.getFullYear()
alert("Hi");//This works
var val2=document.write(year + "/" + month + "/" + date)
alert(val1+" "+val2)//This alert box is not working
if(val1>val2)
{
alert("The date field must be same as current date or less!!!!");
return false;
}
return true;
}

Please let me know whats wrong there..... Help me ranchers..

OK, that's good work! You've discovered the line that is causing you problems . Now, have a read of what document.write actually does and what it returns.... You're almost there!

[Rajkumar balakrishnan]

Yep.... i got it and the problem is with the date formats ... I fix it and now it works perfect....Thanks for all ranchers... who spend their time with me......

[Martijn Verburg]

Great! Glad to see you solved your problem, well done