You can call code of the parent window form child window.
f you open window by using iframe, you can communicate from child window with the parent.
Let’s see an example
Page1.html (Parent window)
<script>
function HelloFromChild(name) {
alert("Hello " + name + " , (called from child window)");
}
</script>
<iframe src="Page2.html" width="200"></iframe>
Page2.html (child window opened in iframe)
<script>
function onClick() {
parent.HelloFromChild(document.getElementById("name").value);
}
</script>
Iframe page
<input type="text" name="name" value="techie" id="name" />
<button onclick="onClick();">Call Parent Window Function</button>
When you open Page1.html in browser you will see the output as below. Click on the button to call parent function.
When you click on the button, onClick event will be fired. onClick event will call function from parent window by using parent variable. By using parent variable you can call function from parent window.
