function openmypage() 
{ //Define arbitrary function to run desired DHTML Window widget codes
    ajaxwin = dhtmlwindow.open("ajaxbox", "ajax", "windowfiles/external.htm", "Golf Tip", "width=450px,height=300px,left=360px,top=360px,resize=1,scrolling=1")
    ajaxwin.onclose = function () { return window.confirm("Close window 3?") } 
} //Run custom code when window is about to be closed