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

I think what you want for 1 and 2 is:

if(!targetWin)
{
    var targetWin = window.open (pageURL, title, 'toolbar=no, location=no, 
        directories=no, status=no, menubar=no, scrollbars=Yes, resizable=no, 
        copyhistory=no, width='+w+', height='+h+', top='+top+', left='+left);
}
targetWin.focus();