call javascript

[akschinas]

Hello. I'm looking for a way to call javascript when you hit a button. I need to send variables to an HTML frame, but I'm not sure how to script it. Thanks!

[jaybee]

hello akschinas, have you searched the forum? this gets covered a lot, eg here (http://www.actionscript.org/forums/showthread.php3?s=&threadid=30288)

[akschinas]

I have searched but not found exactly what I'm looking for, or maybe I missed it. I don't want to open a new window, so therefore would I use getURL? I just need to pass a variable to a frame, so would I use fscommand or getURL? I'm just not sure how to simply call a javascript. THanks

[jaybee]

whether or not you're opening a new window/pop up you can use getURL to call a javascript method in the html page:

//in your movie
my_button.onRelease = function() {
getURL("javascript:myFunction(1);void(0);");
}


//in a script block in your html page
function myFunction(arg) {
//set a variable in a frame
window.parent.namedFrame.document.myVar = arg;
}

[akschinas]

O.k. I kind of got it. However, I'm not really sure what this means:

getURL("java script:myFunction(1);void(0);");

I have to score a quiz and pass that score to an HTML page called "frameset.htm". Where do I call that page in the actionscript? Would "myFunction" be replaced with "myScore" since I am trying to pass a score to the frameset.htm? What does the "1" mean in parentheses? What does void mean? Sorry about the questions, I just want to fully understand. Thanks!

[jaybee]

send the score to the other frame with a getURL action either on a frame or on a button / whatever - do it when they finish the quiz and you've calculated the score.

myFunction() is an arbitrary name - call it whatever you like, as long as it has the same name in the html page and in the getURL call in flash.

The *1* in brackets is the argument passed to the function - you coulod pass the score in there, but if you want to pass the value of a variable instead of something hardcoded, you'd do it like this:


my_button.onRelease = function() {
var theScore = answer1+answer2+answer3;
getURL("javascript:myFunction("+theScore+");void(0);");
}


void is a javascript keyword - it tells the browser not to do whatever it would normally do next - which in this case is to open a new window - so this getURL just executes the javascript the stops.


Sorry about the questions

don't be daft:)

[akschinas]

You're the best. You helped me greatly on another project. Thanks again!

[akschinas]

Now I have found out that it gets more complicated! I have to talk to a frame within an HTML page. The page is named frameset.htm and the name of the frame within frameset.htm is called navbar. Navbar is where I need to pass the score. So how would I direct the score variable to the navbar? Here's the code you gave me. Where would I put navbar in the script?

my_button.onRelease = function() {
var theScore = answer1+answer2+answer3;
getURL("javascript:myFunction("+theScore+");void(0);");

Thanks alot!

[jaybee]

put it in the javascript :


function myFunction(score) {
window.parent.navFrame.document.theScore = score;
}


This javascript should be in the page containing the movie which is in a frameset that also contains another frame called navFrame.

I dunno if the document part of that path is right offhand.....try it with and then without if it doesn't work.

[akschinas]

HI Jaybee,

I'm so close I can feel it! The forum won't allow me to attach the movie becuase it's saying that it's too big. Anyway, here is javascript in my htm page:

//The following code returns the score
function myFunction(score){
window.parent.navFrame.document.lesson_score=score ;
}
//The following code returns the grade
function myFunction(grade){
window.parent.navFrame.document.lesson_grade=grade ;
}
//The following code returns the attempts
function myFunction(attempts){
window.parent.navFrame.document.lesson_attempts=at tempts;
}

Here is the actionscript which is on the first frame of my movie:

onEnterFrame();
var lesson_attempts=+1
getURL("javascript:myFunction("+lesson_attempts+");void(0);");


Here is the actionscript which is on the last frame of my movie:

onEnterFrame();
var lesson_score=QuizTrack.lesson_score
getURL("javascript:myFunction("+lesson_score+");void(0);");
var lesson_grade=QuizTrack.lesson_grade
getURL("javascript:myFunction("+lesson_grade+");void(0);");

It just doesn't work! When I play the swf file outside of the HTM file attached to it, it opens up new windows and gives me the info I asked it to track. But when I view it within the HTM file with the javascript in it, there's nothing. Thanks again!

[jaybee]

your functions in javascript should have unique names - I'd suggest one function to send any variable, so like this:


//The following code returns the score, grade or attempts
function myFunction(name,value){
window.parent.navFrame.document[name]=value;
}



then call it from flash like this:



var lesson_attempts=+1
getURL("javascript:myFunction('lesson_attempts',"+lesson_attempts+");void(0);");


no need for the onEnterframe there - if this code is on the frame then its executed - enterFrame is used to execute code repeatedly from within the timeline of a movieclip....

var lesson_score=QuizTrack.lesson_score
getURL("javascript:myFunction('lesson_score',"+lesson_score+");void(0);");
var lesson_grade=QuizTrack.lesson_grade
getURL("javascript:myFunction('lesson_grade',"+lesson_grade+");void(0);");

[akschinas]

Genius! It works! Thanks so much!