newbie needs help

hi,

i'm very new to ea's

i have a very simple system in mind, but i need help to put it in place.

keep in mind i use a 5 minute line chart, not bar or candlesticks.

all that i want to do is set up an ea that buys long when the moving average 10 crosses the moving average 30,

and sells in the reverse, i just want to play one way and keep it simple for now.

can anyone help me do this.

thank you.