Beefy Boxes and Bandwidth Generously Provided by pair Networks
Problems? Is your data what you think it is?

Passing javascript variables to Perl CGI

by Harch84 (Acolyte)
on Jul 20, 2007 at 14:56 UTC ( #627801=perlquestion: print w/replies, xml ) Need Help??

Harch84 has asked for the wisdom of the Perl Monks concerning the following question:

Hi I have a html page with javascript in it that assigns a set of coordinates to javascript variables. The question I have is how can I then send these variables to a Perl CGI script using a submit on a html form. An example of some of the code below:
var map; var geocoder = null; var addressMarker; var originpoint = null; .................... function showAddress(address) { if (geocoder) { geocoder.getLatLng(address, function(point1) { if (!point1) { alert(address + " not found"); } else { if (addressMarker) { map.removeOverlay(addressMarker); } addressMarker = new GMarker(point1); map.setCenter(point1, 15); map.addOverlay(addressMarker); originpoint = point1; alert("origin is now: "+originpoint+" destination is now +: "+destinationpoint); } } ); } } <body onload="load()" onunload="GUnload()"> <form action="#" onsubmit="showAddress(this.address.value); return + false"> <p> Origin:<input type="text" size="50" id="addressInput" name="address" +value="London, UK" /> <input type="submit" value="Show Origin" /> </p> </form>
Now I want to be able to store the variable "originpoint" and using another form to submit it to the perl CGI script. Any ideas?

Replies are listed 'Best First'.
Re: Passing javascript variables to Perl CGI
by grep (Monsignor) on Jul 20, 2007 at 15:13 UTC
    Create a hidden input element in the form and set the value with javascript. Then it will be passed as a CGI parameter.

    One other thing - You should also remember that some people will have JS off or blocked, so having a CGI only alternative is always recommended.

    UPDATE: added caveat

Re: Passing javascript variables to Perl CGI
by rvosa (Curate) on Jul 20, 2007 at 15:07 UTC
    The trick must be some way to put the variable in a form field, but since that's javascript I have no idea how to do that.

Log In?

What's my password?
Create A New User
Domain Nodelet?
Node Status?
node history
Node Type: perlquestion [id://627801]
Approved by Corion
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others wandering the Monastery: (3)
As of 2021-11-28 06:40 GMT
Find Nodes?
    Voting Booth?

    No recent polls found