如何在JavaScript的子窗口关闭时调用父窗口函数？

Question

//Parent page javascript

function DoABC()
{
    //my logic goes here
}

function btnClick() //This function gets fired on the click event of a button which will open a child window now
{
    window.open("childpage.html", "_blank", "height=400, width=550, status=yes, toolbar=no, menubar=no, location=no, addressbar=no"); 
}

Now when I close this child form, after it gets closed, I want to call DoABC function.

I tried using window.onbeforeunload event of child window, but it did not work for me.

window.onbeforeunload = function(event) {

    event = event || window.event;

    var confirmClose = 'Are you sure?';

    // For IE and Firefox prior to version 4
    if (event) {
       event.returnValue = "Are you sure";
    }

    // For Safari
    return confirmClose;

}

What could be the solution for this?

Answer 1

When you call window.onbeforeunload, you are referring to your current window object. I would think this would work:

var newWin = window.open(....);

newWin.onbeforeonload = function () {....}

I haven't tried, but I think this will solve your problem.