在不同的函数中使用hide（）作为相同的元素

Alright this is my first day with JQuery so have fun with these functions I made. I'm trying to hide a div (#panel) when different triggers are clicked. Below is three functions in which all three of them need to hide (#panel) when used. The way I have it setup it's only working for the first function. The other two don't hide the element. So without further ado.Alright this is my first day with JQuery so hav