var cWin;

function openSubWindow(a_page) {
	if (cWin == null)
	  cWin = window.open(a_page, 'childwin', 'titlebar=no,resizable=yes,width=500,height=400,scrollbars=yes');
}

function openOrgWindow(a_page)  {
    openSubWindowEx(a_page, 700, 500, false);
}    

function openSubWindowEx(a_page, a_width, a_height, a_resizble) {
	if (cWin == null)
	  cWin = window.open(a_page, 'childwin', 'titlebar=no,resizable=' + a_resizble +',width=' + a_width + ',height=' + a_height + ',scrollbars=yes');
}

function onWinFocus() {
    if (cWin!=null)	{
        if (!cWin.closed)
            cWin.close();
        cWin=null;
    }
    return true;
}

//window.captureEvents(Event.focus);
window.onfocus = onWinFocus;