how can i tell if a window is already open

i use the following code in all my pages to open a new IE window

Code:

---

m_PL = window.open('../flash/player.html','m_PL','directories=0,height=85,width=293,left=0,menubar=0,resizable=0,scrollbars=0,titlebar=0,toolbar=0,top=0')

---

how can i tell if that window is already open so the other pages won't reload the same page

Code:

---

if (m_PL){
    //the window is open
}else{
    //the window is not open
}

---

one thing to remember when using this method is that you have to set m_PL = 0 in the onUnload of the window so that the code doesn't think the window is there when it is not.

Hope that helped,
Michael