Mischievous Cat

Woke up this morning to the beautiful sunshine outside, I opened our front windows to let the cool breeze in and went back to bed to cuddle with my little angels.  After about an hour we all woke up and I started gathering my thoughts and planning our day, I heard the voice of my daughter screaming and crying.  Startled by the sound I ran down the hall and discovered my daughter holding our cat Molly.  Thinking of the worse, I asked her what was wrong?...She said, "I grabbed Molly by her legs, she busted through our screen window and was jumping out the window mom."  Not really understanding all of her words, I looked at the big window in our living room and sure enough the screen was open at the bottom.  The only possible reason I think Molly was trying to jump out the window...there is a neighbor cat that runs freely outside...I guess she wants to hang out with "her" friend...silly cat.  What now..how do I open my windows without worrying about Molly jumping out the window!