How to set the focus to a child window without refreshing it?

Question

I am having a web page which contain four links, each link open a popup window. I am using a common JavaScript function to open popup window, as given below

Answer 1

For 1 and 2 , you can use this function

// loads an URL into the popup without reloading it
function popupnr(mylink, windowname, refocus) {
    // open the window with blank url
    var mywin = window.open('', windowname, 'window attrs here');

    // if we just opened the window
    if (mywin.closed || (!mywin.document.URL) || (mywin.document.URL.indexOf("about") == 0)) {
        mywin.location = mylink;
    }
    else if (refocus) {
        mywin.focus();
    }

    // return the window
    return mywin;
}

1. You cant refer a child window by its name. There is no window.children. You need to call window.open to get a reference.

2. Yes you can. But u need to use the same window name while calling window.open