How to get dynamic yyyymm dropdown field in jsp?

[Shepard]

Hi,
I have two fields of date in this format yyyymm(from date and to date)
I have the following code:

function populateYearSelect() 
            { 
                d = new Date(); 
                curr_year = d.getFullYear(); 
               // curr_month = d.getMonth();
 
                for(i = 0; i < 2; i++) 
                { 
                    document.getElementById('year').options[i] = new Option(curr_year-i,curr_year-i); 
 
                   // document.month.option[curr_month].selected=true;
 
                } 
 
            } 

This gives me dynamic year(upto current year)..
But as soon as I add the commented code

// curr_month = d.getMonth();
 // document.month.option[curr_month].selected=true;

It fails...
I need date as follows:
If year is 2012 & month is june then list should show 201206

Now current month is june so it should show...201306,201305,201304,.......,201212,201211, 201210,......& so on..

Can any one help?

[Dormilich]

Can any one help?

help with what? you didn’t tell what the code actually does and how it is different from what you expect.

anyways, you should take a look at the Error Console, to check whether there are any JS errors listed.

[Shepard]

@Dormilich..Thanks for the response..

It does not give any errors.. It simply displays year only...upto current year.. Month is not at all displayed..
I want it as yyyymm==201206..

[Dormilich]

isn’t month in a separate <select>?

[Shepard]

No month should come in the same select as the year...and should come after year

[Dormilich]

No month should come in the same select as the year

and why do you address the month and year differently, then?

[Shepard]

The problem is it does not display month.. It only displays year..
Also right now year is displayed only once...In the desired output year should be displayed as many times the month currently is...
What changes should I make in the code to get my desired output?
@Dormilich::

and why do you address the month and year differently, then?

How else should I address it?

[Dormilich]

How else should I address it?

you said, they were the same <select>, so why should you address them differently?

[Shepard]

If I use this code

function populateYearSelect() 
            { 
                d = new Date(); 
                curr_year = d.getFullYear(); 
 
                for(i = 0; i < 2; i++) 
                    document.getElementById('year').options[i] = new Option(curr_year-i,curr_year-i); 
 
                           } 
 

It gives me years upto 2013(current year)...
Now how do I make it show month no. along with the year.. the methods I am trying is not working...
Do you know how can I get desired answer?

[Dormilich]

hm, maybe like new Option(""+year+month, ""+year+month)?

[Shepard]

But I am not getting the month.

[Dormilich]

how do you know?

[Shepard]

because it is not displaying it...
If you wanted this output how will you go for it?

[Dormilich]

like in the code snippet I posted.

[Shepard]

I understand how I have to display but I dont know how to get current month in my field and decrement it.. & then when it will reach 01.. year should decrement by 1 and month should become 12..

[Dormilich]

btw, months in Date go from 0 to 11.

and you can decrement the month by using Date.setMonth()

[Rabbit]

You need to embed a loop in your year loop to iterate the months.

[Sherin]

I created a code which gives me yyyymm dynamically upto current year month..

function dropdown(monthfield, yearfield){
               var monthtext=['01','02','03','04','05','06','07','08','09','10','11','12'];
               var today=new Date()
               var monthfield=document.getElementById(monthfield)
               var yearfield=document.getElementById(yearfield)
               var thisyear=today.getFullYear()
               var thismonth=today.getMonth()
 
               var id = 0;
               for (var y=0; y<=20; y++){
                   for (var m=(monthtext.length-1); m>=0; m--, id++){
                       if(m<=thismonth){
                           yearfield.options[id]=new Option(thisyear+"-"+monthtext[m], thisyear+""+monthtext[m])
                       }else{}
                   }
                   thisyear-=1
                   thismonth = 12;
               }
               yearfield.options[0]=new Option(today.getFullYear(), today.getFullYear(), true, true) //select today's year
           }