I have one entire html openning inside an iframe that contains a javascript function getData().Now I am not sure how to call getData() from outside that frame.Also is it possible to call it from an external javascript file ?
You can get a reference to the frame window object from the window.frames property. See https://developer.mozilla.org/en/DOM/window.frames
UPDATE:
You can access the global context of a named iframe with window[framename]. e.g:
<iframe src=data.html name=data></iframe>
<script>
var myData = window.data.getData();
</script>
Although you will need to make sure the iframe has loaded.
In jQuery you can use the contents method if you want access to the iframe DOM:
$(iframe).contents()
All this is assuming the frame hosted within the same domain.
UPDATE[2]:
You asked if it is possible to call the getData function from an external js file. The answer is yes (if I understand you correctly). Here is an example:
<html>
<head>
<meta charset=utf-8>
<title>parent page</title>
</head>
<body>
<iframe src=data.html name=data></iframe>
<script src=getdata.js></script>
</body>
</html>
Then in the getdata.js file you have:
var dataFrame = window.data;
// when the frame has loaded then call getData()
dataFrame.onload = function () {
var myData = dataFrame.getData();
// do something with myData..
}
Hope this answers your question :)
