Perl Guru Forums: Perl Programming Help: Intermediate: passing javascript vars to perl cgi scripts

CGI/Perl Guide | Learning Center | Forums | Advertise | Login

Site Search: in


	MAIN INDEX	SEARCH POSTS	WHO'S ONLINE	LOG IN

Home: Perl Programming Help: Intermediate:
passing javascript vars to perl cgi scripts

adrockjames
stranger

Dec 4, 2001, 7:02 PM

Post #1 of 4 (474 views)

passing javascript vars to perl cgi scripts	Can't Post

hi,

this might be more appropriate in the javascript section, but as the last post was nov., thought i would try here.

i have a link on a web page that calls a javascript function which in turn calls a perl cgi script that presents a form. in the js function, i want to pass the originating url to the cgi.
like cgi?ul=http://url.javascriptfunction.was.called.from/

i have this function, but can't get it to pass the url... can anyone help?

function newWin() {

var url= "" + opener.<something>.<something>;

aWindow = window.open("http:\/\/www.mypage.com\/cgi\/form.cgi?ul=url","","toolbar=no,location=no,directories=no,status=no,menubar=1,scrollbars=no,resizable=yes,width=400,height=550");

}

thanks in advance!

yapp
User

Dec 5, 2001, 1:52 AM

Post #2 of 4 (471 views)

Re: passing javascript vars to perl cgi scripts [In reply to]	Can't Post

Code

function newWin() { 
  var url= opener.location.href; 
  
  url = "http:///www.mypage.com/cgi/form.cgi?url=" + escape(url) 
  
  // If you put a target name in the 2nd parameter, the window will be opened once. 
  var popup = window.open(url, "thewindow", "menubar,resizable,width=400,height=550"); 
  
  if(popup.opener == null) { 
    // ie3 fixes 
    popup.opener = self; 
    popup.location.href = url   // you properly need to test this aswell before assiging, 
                                // like I did with the window.opener 
  } 
  
  window.focus(); // when re-opened you need to focus 
}

Still, what are you trying to do? Does the previous code answer your question?.

Tip: If you need to send a POST request to your script (and not a GET request), you need to do something else, like

Code

HTML 
  
<FORM name="hiddenform" method="POST" action="/cgi-bin/form.cgi"> 
  <INPUT type="hidden" name="url" value=""> 
</FORM> 
   
... 
  
JavaScript 
function sendIt(url) { 
  document.hiddenform.url = url  // don't escape() 
  document.hiddenform.submit(); 
}

Yet another Perl Programmer

_________________________________
X-Forum - Members and testers wanted Wink

adrockjames
stranger

Dec 5, 2001, 7:57 AM

Post #3 of 4 (468 views)

Re: passing javascript vars to perl cgi scripts [In reply to]	Can't Post

thanks! yes it does help, however on the page i get an error that

'opener.location' is null or not an object.

here's how i call the function

<a href="javascript:newWin()" onMouseover="window.status=' '; return true">

i'm using ie5.5 on NT with your code in place

thanks again

yapp
User

Dec 5, 2001, 8:04 AM

Post #4 of 4 (466 views)

Re: passing javascript vars to perl cgi scripts [In reply to]	Can't Post

Sorry. This var url= opener.location.href should be replaced by var url = window.location.href. If the current window isn't opened, window.opener is null (and not an object you can ask the location.href from).

P.S. Have you even seen this code:

Code

html 
<A href="a/file.html" target="newWindowName" onClick="return OpenPopup(this)">a file</A> 
  
JavaScript 
function OpenPopup(linkObject) { 
  var url = linkObject.href; 
  var target = linkObject.target || ''; 
  window.open(url, target, ..................) 
  ............. 
  return false; // there is no reason why 
        // the <A href> tag should be executed 
}

That's also compatible with non-js browsers.

Yet another Perl Programmer

_________________________________
X-Forum - Members and testers wanted Wink

Search for (options)

Web Applications & Managed Hosting Powered by Gossamer Threads
Visit our Mailing List Archives