If you open a window like:
window.open (\"url\",\"winName\",\"location=0,width=300,height=214\");
If winName is already open i
winName
You can use jQuery :
myPopup = window.open(url, "Title","menubar=no, status=no, scrollbars=no, menubar=no, width=800, height=800"); $(myPopup).focus();