referencing form element - please help!!

**slp** · May 26, 2001 04:56

My question refers to a javascript I'm working on.
I have a form which displays its output in a textarea on the same page. This part is working well, but what I'm trying to do (without success!) is create a button which, when clicked, will open a new window which contains (only) the contents of that textarea. I should also add that the original form is in a frame.

Is it possible to do this?! I've been looking for information on the web (even in official documentation) but nothing I've tried has worked. I'd appreciate any & all help!

**Paul S** · May 26, 2001 08:57

Hi,

This function will open a new window when you press the submit or any other button

Code:

function o(text) {
   var w = window.open("","");
   w.document.write("<html><body><h1>"+text+"</h1></body></html>"); 
}

where text is the output of the form.

To call this function when submit button is clicked write

Code:

 <script language=javascript>
 function myfunction() {
  ...
  o(output_of_the_form);
 }
 </script>

 <form onsubmit="myfunction()" ...

or from any other button write

Code:

 <script language=javascript>
 function myfunction() {
  ...
  o(output_of_the_form);
 }
 </script>

 <form ..>
 <input type=button onclick="myfunction()" ...

Paul

**slp** · May 27, 2001 00:54

Thank you so much!! That works beautifully.

My javascript knowledge is pretty poor, so I really appreciate your help!

But now I have another problem. When I try to print that newly created window (just using the browser's print option) it prints the original window (not the new one). Very frustrating! It does this with Opera, IE and Netscape, so I'm guessing it's not a browser problem.

Is there a Javascript-related reason it won't print the new window? Is there anything I can do??

**Paul S** · May 28, 2001 17:15

could you include your code?

I tested with IE 5.5 & NN 4.7 (Win) and I printed the frame's contents without problems

Paul

**slp** · May 29, 2001 02:55

I suppose the relevant parts of the code would be the functions in the head section:

Code:

function o(text) 
{
   var w = window.open("","");
   w.document.write("<html><body><PRE>"+text+"</PRE></body></html>");
}

function Print()
{
 o(document.cgen.display.value);
}

where my form is called 'cgen' and the output textarea is called 'display'.
And the button in the body:

Code:

<INPUT type="button" name ="print" value="print" onClick="Print(this.form)">

(I've called the button & function 'print' although that's not really what it does, obviously. It really means 'printer-friendly version'.)
And, like I said, the wrong window gets printed (using Netscape 4.04 and IE 5.0. Opera 5.01 crashes!)

**Paul S** · May 29, 2001 13:03

Originally posted by slp
When I try to print that newly created window (just using the browser's print option) it prints the original window (not the new one)

Ok, if you want offer the visitor the option to print the window's contents just rewrite the o() function

Code:

function o(text) 
{
   var w = window.open("","");
   if (window.print)
       pcommand = '<a href="javascript:parent.frames[1].print()">Click here to print this window</a><br>';
   w.document.write("<html><body>"+pcommand+"<PRE>"+text+"</PRE></body></html>");
}

PS This function isn't supported by IE 4.x

Paul

**Paul S** · May 29, 2001 13:06

Note that

parent.frames[i].print()

where the first frame is i=0, second is i=1, etc

**slp** · May 30, 2001 06:21

Thanks for your suggestions, but when I tried it out the same thing happened - it printed out the original window.

I was just about to give in to despair, when by an unbelievable stroke of luck, I came across someone who had the exact same problem only 2 days ago! Looks like this person finally managed to figure out the printing problem: the new window has to be closed when it's finished!

The message can be found here: http://freewarejava.com/ubb/Forum1/HTML/016136.html

So I've incorporated that into the code you gave me about referencing the output of the form & it all works! (Although the print() function doesn't work in some browsers, the new window is properly displayed in all, and can be successfully printed manually. So I'm happy

)

Thanks very much for all your help. I really appreciate the time you've taken, and I've learned a few things about Javascript which I'm sure will come in handy in the future!

**Paul S** · May 30, 2001 12:50

Originally posted by slp
Thanks very much for all your help. I really appreciate the time you've taken, and I've learned a few things about Javascript which I'm sure will come in handy in the future!

You're welcome

I'm glad that you have solved your problem.

Paul

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